CSWIP Questions New

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Welding Inspection, Steels - WIS 5

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Multi - Choice Question Paper (MSR-WI-1) / '))
Name: f l i ~ h ~ f i : I . G . E.......
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Answer all questions
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Which of the following butt-weld preparations is usually the most susceptible to
pJ lack of sidewall fusion during the manual metal arc process?
a. A double-U butt.
b. A sing1e-V butt.
c. A double-v butt.
d. It is not normally a defect associated with the MMA welding process.
f What is the leg length of a fillet weld?

a. The distance from the toe to face.
b. The distance from the root to face centre.
c. The distance from the root to the toe.
d. Its 0.7 of the design throat thickness.
e. Both c and d
What is the throat thickness of a fillet weld (equal leg lengths)?

a. The distance from the toe to the face.
b, The distance from the root to the face centre.
c. The distance from the root to the toe.
d. The distance from toe to toe.
WIS 5 Qu paper MSR-WI-1

issue 4 Date: 17/02/05
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4. Compound welds:
a. Always contain butt and fillet welds
b. Joints, which have corr~binationsof welds made by different welding
processes.
c. Combinations between two different weld types
d. All of the above.
(5/ A duty not normally undertaken by a welding inspector is to:

a. Check the condition of the parent material.
b. Check the condition of the consumables.
C. Measure residual stress.
d. Check calibration certificates.
/'' Under most conditions, which of the following welding positions will deposit the
most weld metal.
a. PG.
b. PE.
C. PC.
d. PA.
7. What meant by the term crater pipe:

J
. a. Another term for concave root
b. Another term given for a burn through.

c. A type of gas pore, found in the weld crater.
d. A shrinkage defect, found in the weld crater.

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8. What is meant by the term weld junction?

a. The area containing the HAZ and the weld metal.
b. The weld metal and parent metal.
c, The boundary between the fusion zone and the HAZ.
d. The part of the weld, which has undergone metallurgical changes due
to the heat from welding.
'
\B
a
The strength of a fillet weld is primary controlled by:
a. Leglength.
t b. Design throat thickness.
c. Actual throat thickness.
1Qc Which of the following is applicable for none planar defects?

a. They are always repaired.
/"
b. Their existence will result in the removal of the entire weld.
c. They are not usually as significant as planar defects.
d. hey can only be detected using radiography.
4
11. Which of the following welding processesltechnique is likely to be used for the
repair welding of localised porosity in a butt weld?
a. MMA, PG position.
b. Mechanised MAG.
c. Submerged arc.
e. None of the above.

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12. When measuring the welding parameters with the MMA welding process for ,
,/ the purpose of approving a welding procedure, the Welding Inspector should
, measure the voltage:
a. As close to the welding arc as possible.
b. Anywhere along the welding cable.
c. Always from the voltmeter on the welding plant.
d. As near to the welding terminals as possible.
13. In the MMA welding process, which of the following is most likely to be caused
by a welder with a poor technique?
/'
a. Deep weld craterslcrater cracks.
b. Copper inclusions
c. Hydrogen cracks
14. Root concavity is caused by:

/ a. Excessive back purge pressure and entrapped gas.
b. Excessive back purge pressure and very high heat inputs.
c. Excessive root grinding and a slow travel speed.
d. Excessive root grinding and excessive back purge pressure.
15. When inspecting a critical component, the toes of a weld must be:
a. Always ground flush.
b. Must always overlap at least 1.5 rrlm onto the parent material.
c. Must ahvays be inspected using a crack detection method (MPI, DPI).
d. None of the above can be selected - specification requirements .
unknown.
WIS 5 Qu paper MSR-WI- 1

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16. When carrying out visual inspection, the specification makes no mention of the
reql-~irements
for visual inspection, in this situation what should you do?
a. Carry out normal visual inspection.
b. Seek advice from higher authority.
c. Carry out no visual inspection.
d. Re-write the requirements of the specification.
t i Under most circumstances, which of the following do you consider to be duties

i
/ of a welding inspector?
/
a. The supervision of welders.
1
b. Procedure writing.
c. Qualifying welders
$8. Which of the following is most likely to cause a burn through

/ a. Root gap too small.
b. Travel speed too fast.
c. Root face too small
! 10. In an arc welding process, which of the following is the correct term used for
1 the amount of weld metal deposited per minute?
a. Filling rate.
b. Deposition rate.
c. Weld deposition.
d. Weld duty cycle.

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7/ THE WELDING INSTITUTE
20; What is the term given for the area of a welded joint just outside the weld
,.fir' metal that has undergone microstructural changes?
/
I, a. Heat affected zone.
I
b. The weld zone.

C. Fusion zone.
d. All of the above terms may be used.
When carrying out visual inspection, which defect (s) is likely to be missed?
a. Linear misalignment.
b. Cap undercut.
c. Porosity.
d. Lack of fusion (inter run).
22.
/
Cold lapping is another term for:
/ a. Lack of fusion at the toe of a weld.

b. Lack of fusion between weld metal and weld metal.
c. Undercut at the toe of a weld.
d. Both a and b.
2f Incomplete root penetration is most likely due to:

L a. Welding speed too slow.
b. Welding current too high.
c. Root gap too small.
d. Electrode diameter too small.
i
./
i
24. Crater cracks are caused mainly by:
/ a. Excessively fast welding speeds
b. Improper electrode angle
c. Hot shrinkage.
d. lmproper joint design.
WIS 5 Q u paper MSR-WI-1

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25. On a single-v butt weld, the distance through the centre of the weld from root
to face is called:
1'
I
a. Reinforcement.
b. Penetration.
c. Throat thickness.
d. None of the above.
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2 ~ ' ' The throat thickness of a % inch fillet weld is?
/'
i a.
b.
27.5 mm
24 mm.
c. 13.5 mm.
d. 12.5 mm.
/ a.
-
The need for preheat for steel will increase
.ccIz-lif:
The material thickness reduces.

b. Faster welding speeds
c. The use of a larger welding electrode
28: Which of the following butt weld preparations is most likely to be considered
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for the welding of a 6mm thick plate?
a. Double-V butt.
b. Asymmetrical double-v butt.
c. Single-U butt.
d. Single-V butt.
28. A welding inspectors main attributes include:

i
I; a. Knowledge.
b. Honesty and integrity.
c. Good communicator.
d. Alloftheabove.
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30. A code of practice for visual inspection should cover:

a. Before, during and after welding.
b. Before welding activities only.
c. After welding activities only.

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Assessment Question Paper (MSR-AWI-I 05)
Name: .... ....................... .... .. ...................

/
What is the Arc energy for the following welding process parameters?
Amps 140, Volts 21, Travel speed 250mmlmin.
a, 0.7 KJlmm
b. 0.6 KJlmm
j
c. 0.01 KJImm
d. 0.7 Jlmm
2. What is the effect of tempering after quenching

a. Toughness and strength are increased.
b. Toughness and strength are reduced.
c. Toughness reduced and strength increased
8. Toughness increased and strength reduced
e. Toughness increased and hardness increased
What is the ratio between the leg length and the design throat thickness on a mitre
1 7
' fillet weld with equal leg lengths
a. 1 to 1
b. 2 to 1.
c. 1.414to1.
d. All of the above it depends upon the leg length size.
WIS 5 Qu paper MSR-AWI-1 05 issue5 Date: 10102/05

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4. The toughness and yield strength of steel is reduced by:

a. Reducing the grain size
b. Increasing the heat input.
c. Reducing the heat input.
d. Both a and b.
Which of the following statements is true if applicable to a charpy vee notch impact
a. It's a destructive test used to assess materials ductility in the weld zone.
b. It's a mechanical test used to determine a welds resistance to creep.
c. It's a dynamic test, which is used to give a measure of notch toughness.
d. It's a static test used to determine materials toughness in the notch region.
e. Both a and c.
6. How can you tell the difference between an ENIISO weld symbol and a BS weld
symbol?
a. The EN/ISO weld symbol will always have the arrow side weld at the top of the
reference line.
$. The ENIISO symbol has the welds elementary symbol placed on a dashed line
lying above or below the solid reference line to indicate a weld on the other side.
c. The ENIlSO symbol has a fillet weld leg length identified by the letter "an.
d. The ENIISO symbol has a fillet weld throat thickness identified by the letter "2'.
e. Both b and d.
r/ What is the possible effect of having the heat input too low during welding?
a. Low toughness, entrapped hydrogen and low hardness.
b. High hardness, lack of fusion and entrapped hydrogen.
c. Entrapped hydrogen, low toughness and high ductility.

d. Lack of fusion, low toughness and a reduction in ductility.
WIS 5 Qu paper MSR-AWI-I 05 issue5 Date: 10/02/05

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8. An MMA electrode classified as E7018 is:

a. A basic low hydrogen electrode containing iron powder.
b. A rutile electrode containing iron powder.
c. A cellulose electrode suitable for welding in all positions.
d. A basic electrode depositing weld metal with yield strength of a least 70,000 psi.
e. both a and d.
9. The number 135 is placed at the end of the reference line on a weld symbol.
According to I S 0 2553 what does this number indicate?
a. The welding process is stated as MMA
3
b. The welding process is stated as I-IG
c. The welding process is stated as SAW
d. NDT is to be carried out after welding
e. None of the above
10. Which of the following is the most likely to be considered an essential variable for a
welder qualification test?
a. A change from an electrode classified to BS EN 499 as an E46 3 IN1 €3 to an
electrode classified to AWS A5.1 as an E7018.
b. A change of pipe wall thickness by at least 15 mm.
c. A change in pre-heat temperature from 50°C to 100°C.
d A change from PC welding position to PA welding position.
e. All of the above.
P" What would be a typical appearance of a ductile fracture surface?

a. Rough randomly torn and a reduction in area.
b. Smooth fracture surface displaying beach marks
c. Step like appearance.
d. Bright crystalline fracture with very little reduction in area.
e. Both a and b.
WIS 5 Qu paper MSR-AWI-1 05 issue5 Date: 10102105

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12. In EN 499, what does the number 50 represent in the following electrode
classification?
E 5 0 3 1 N i B 1 6 0 0 1 H5.
a. A minimum of 50 Nlmm2 yield strength.
b. A minimum of 500 Nlmm2 tensile strength.
c. A minimum of 50000 psi yield strength
d. A minimum of 50000 psi tensile strength
e. None of the above.
,
"
12Tlncreasingthe carbon content of a steel will:
//
a. Increase the hardness and toughness
b. Decrease the hardness and toughness
c. lncrease hardness, decrease toughness
d. Decrease hardness, increase toughness
/ . Which of the following is applicable for

increases:
the HAZ on a CIMn steel weld if the heat input
a. Both hardness and width is increased.

b, Hardness decreases, width increases.
c. Both hardness and width decreases.
d. Hardness increases, width decreases.
fS.What is the main reason for the application of pre-heat

a. To change the chemical composition of the weld and parent material.
'b. The control the hydrogen and prevent cracking.
c. To remove residual stresses.
d. Both a and b.
e. All of the above
WIS 5 Qu paper MSR-AWI-1 05 issue5 Date: 10/02/05

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16. Which of the following is most likely to increase the chance of solidification cracking?
a. Reduction in s~~lphur
content of the parent material
b. Increased restraint on the joint during welding.
c. Increase in weld hydrogen content from 15 m1/100 g to 25 m/l100 g.
d. Poor through thickness ductilrtjl in the materials being welded.
e. Both a and b.
t f i h h a t is the effect of full annealing compared to normalizing?

/ /
- / A reductior~in grain size.
I b, An increase in grain size.
c. An increase in toughness
d. The grain size will not be affected.
-.
the following elements may cause cold shortness

a. Sulphur.
b. Phosphorous
c. Manganese.
d. Silicon
the advantages of site radiography over ultrasonic inspection

which of the following applies?
a. A permanent record produced, good for detecting lack of sidewall fusion in a
single U butt weld and defect identification.
b. A permanent record produced, good for the detection of all surface and sub-
surface defects and assessing the through thickness depths of defects.
c. Permanent record produced, good for defect identification and not as reliant upon
surface preparation.
d. No controlled areas required on site, a permanent record produced and good for
assessing pipe wall thickness reductions due to internal corrosion.
e. Both a and c
WIS 5 Q u paper MSR-AWI-1 05 issue5 Date: 10/02/05

lz25?f THE WELDING INSTITUTE
20. Which of the following materials are the most susceptible to HlCC in the weld zone
,
a. Carbon Manganese steel
b. Micro alloyed steel (HSLA).
c. Austenitic steel
5. Both a and b
e. All of the above
, A d G k e I l a r tearing is: 1.
a. A product defect caused during the manufacturing of certain steels

b. A crack type, which occurs in the parent material due to welding strains acting in
the short transverse direction of the parent material.
c. A type of hot crack associated with impurities (sulphur, carbon and
phosphorous).
.
d. A type of crack that occurs in the weld or parent material due to cyclic stresses.
of the following statement maybe considered correct when dealing with

agglomerated fluxes?
I. Easy addition of additive

2. They're less hygroscopic than other types
3. Flaky appearance
4. Need to bake, prior to their use
5. Less dust tendency
A - Statements 1 & 4 are correct

6. Answer 1 and 3 are correct
C. Answer 4 and 5 are correct
D. Statements 1,2,4 and 5 are correct
23. Which of the following is applicable to the heat treatment process of normalising
carbon-manganese steel
a. It is always carried out below the lower critical limit.
b. It is carried out to ensure the material has maximum tensile strength.
. It is carried out to ensure the material is of maximum ductility and malleability in
preparation for extensive cold working operations.
d It is carried out at approximately 910°C for the purpose of grain refinement
I 05 issue5 Date: 10/02/05

WIS 5 Q u paper MSR-AWT-
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,24. A tee joint on a support bracket is to be welded both sides using 5 mm leg length fillet
i
welds, each weld is to be intermittent 50 mm in length, and the gap between each .
weld is to be 25 mm. In accordance with EN 22553 which of the following symbols
gives the correct representation?
stairlless steel can be identified by:

a. Very shiny appearance.
b. Lack of magnetic attraction.
c. Its extreme hardness.
d. None of the above
.J Ultrasonic testing is preferable to radiographic testing due to:

a. Its ability to detect all defects.
b. Lower amount of operator skill required.
c. Its ability to detect laminations.
d. Its ability to detect both sub-surface and surface defects in Austenitic stainless
steel.
WIS 5 Qu paper MSR-AWI-1 05 issue5 Date: 10/02/05

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71/ THE WELDING INSTITUTE
27. Which of the following flame types would you expect to be used for the cutting of mild
,
steel?
a. Carburising flame.
b. Oxidising flame.
c. Reducing flame.
d. Neutral flame.
, ,
,
,,-
,-%a The heat affected zone of a carbon steel fusion weld

,/
a. Usually has the highest tensile strength and highest toughness values
b, Usually has the lowest toughness values and cannot be avoided
c. Is usually gamma iron phase and cannot be avoided
d. Both a and c.
A A w ding process where the welding plant controls the travel speed and the arc gap,
but under constant supervision using a shielding gas mixture of 80% argon - 20%
carbon dioxide is termed:
a. A manual MAG process.
b. A semi-automatic MAG process.
c. A mechanised MIG process.
d. A mechanised MAG process.
%
.I
Pj"' . The main reason for toe

blending on certain welded components is:
a. Corrosion considerations.
o. Fatigue life.
c. Appearance.
d. All of the above
WIS 5 Qu paper MSR-Awl-I 05 issue5 Date: 10/02/05

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Multi - Choice Question Paper (MSR-WI-2)
Defects outside the permissible limits of the applicable specification should be:
a. The decision is up to the welding inspector.
b. Repaired.
c. Always double checked using NDT.
d. Alloftheabove.
Flux cored wires may be advantages over solid wires because:

a. Higher deposition.
b. Lower hydrogen contents in the deposited welds.
c. Easy addition of alloying elements.
d. Both a and c.
e. Alloftheabove.
' :
/
Movement of the arc by magnetic forces in an arc welding process is termed:

a.
b.
c.
Arc deviation.
Arc misalignment.
Arc blow.
d. Stray arc.
I'
I
A crack type most associated with the submerged arc welding process is:
a. Hydrogen cracking in the HAZ.
b. Solidification cracking.
c. Lamellar tearing.
d. Fatigue cracking.

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3. Which of the following processes joins metals plastically.
; a. Friction welding.
b. Resistance welding.
c. Arc welding.
d. Plasma welding.
6. What type of power source characteristic is required for a manual process?

a. Constant voltage.
b. Flat characteristic.
c. Drooping characteristic.
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,,'
Which of the following electrodes and current types may be used for the TIG
welding of nickel and its alloys?
a. Cerium electrode, DC -ve.
b. Zirconium electrode, AC.
c. Thorium electrode, DC +ve.
d. All of the above may be used.
P What are the possible results of having a heat input to Ioyy??

a.
b.
An increase in hardness, lower yield strength and lack of fusion.
A reduction in toughness, hydrogen entrapment and an increase in
hardness.
c. Entrapped hydrogen, an increase in hardness and lack of fusion
d. Entrapped hydrogen, a reduction in carbon content and lack of fusion.

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The main reason for using a back purge when welding 18-8 stainless steel ,
/9; with the TIG welding process is to:

a. Improve positional welding.
b. Prevent the possibility of porosity.
c. Prevent excessive root penetration
d. Prevent the formation of a dense oxide layer forming in the root.
1 The possible effects of having a travel speed too fast:

/
a. Low toughness, slag inclusions and cap undercut.
*
b. High hardness, slag inclusions and a narrow thin weld bead.
c. High hardness, excessive deposition and cold laps
d. Low toughness, poor fusion and slag inclusions.
1,'
/
If arc blow exists when welding with the MMA welding process, .this can be
best reduced or eliminated by:
/
a. A change from AC to DC current.
b. A change from DC to AC current.
c. A change from DC +ve to DC -ve.
d. A change from DC -ve to DC +ve.
1
1.2. When welding a double-v butt weld with the submerged arc welding process
1 the presence of centre line porosity may be due to:
i
a. Damp flux.
b. Contamination on the weld preparations.
c. Incorrect flux depth
d. Alloftheabove.

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I . The inclusion of an inductance in the welding circuit when using MIGIMAG .

/
welding process is to:
/'
a. Control the rate of spatter in the dip transfer mode.
b. It enables the welder to weld in position with the spray transfer mode.
c. It allows for thicker filler wires to be used (2.6-3.6mm diameter).
d. It allows full control over droplet size in the spray transfer mode.
14. An undesirable property of aluminium oxide residue, when welding is that it:
a. Decrease weld pool fluidity.
b. Requires more heat to melt it when compared to aluminium.
c. Causes the welder to travel to quickly.
d: The presence of the oxide makes aluminium impossible to weld.
When welding with the MIG welding process using pure argon as the shielding
gas on carbon steel, which of the following problems are likely to occur?
e. Copper inclusions and excessive cap heights.
f. Excessive root penetration and porosity.
g. Slag inclusions and crater pipe.
'8 Lack of fusion and poor cap profiles.
16. When considering the tungsten arc welding process what is the purpose of the
down-slope (slope-out) control?
a. Ensure good penetration.
b. To prevent arc striking on the parent material.
c. To help prevent the formation of crater pipe and possible cracking.
d. To help prevent tungsten inclusions during welding.

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$7. When considering thermal cutting local hardening can be reduced by:
a. Increasing the cutting speed.
b. The use of propane as a fuel gas.
c. Pre heating the material to be cut.
d. Alloftheabove.
IS. In a semi-automatic welding process, which of the following shielding gaslgas

mixtures would normally give the deepest penetration on steel?
a. 100% argon.
b. 100% C02.
c. 75% argon + 25% C02
d. All of the above would give the same depth in penetration.
1/ In a MMA welding process, which of the following statements are false?

/ a. An arc gap, which remains almost constant even if as usual the welder
varies the position of the electrode.
b. A voltage, which remains almost constant even if as usual the welder,
varies the arc gap.
c. A current, which remains almost constant even if as usual the welder,
varies the arc gap.
d. A and b.
When considering the MIGIMAG welding process which of the following metal
transfer modes would be the best suited to the welding of thick plates over 25
mm, flat welding position,
a. Dip transfer.
b. Pulse transfer.
c. Spray transfer.
d. Globular transfer.

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2 . Which of the following current types would you expect to be used for the ,
welding of aluminium with the TIG welding process?
a. DC -ve.
/
/
Which of the following statements is false?
a. In the MMA welding process electrode DC + produces a deep narrow
i weld pool, which is fast freezing.
b. DC electrode positive is used for the MAG welding of steel plate.
c. In the MAG welding process the wire feed speed remains constant
during the welding operation
d. Alloftheabove
/
When considering hydrogen, which of the following welding process would
produce the lowest levels in the completed weld (under controlled conditions)
a. MMA.
b. SAW.
C. -rIG.
d. FCAW.
1
24. Pre heat prior to the welding of a carbon steel butt weld:
/
' a. Must always be carried out.
b. Is always carried out using a gas flame
c. Need not be carried out if post weld heat treatment is to follow

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25. In steel the element with the greatest effect on hardness is:
a. Chromium.
b. Manganese.
L. Carbon.
d. Nickel.
B. For a given voltage and current settings on a MMA welding plant, when the arc
length is shortened, which of the following will be most affected.
///
a. The current will increase.
1 b. The current will decrease.
c. The voltage will decrease.
d. The voltage will increase.
d
/
Which of the following best describes a semi-automatic welding process?
/ a. The welder is responsible for the maintaining the arc gap and travel
speed.
. b. The welder is responsible for travel speed only; arc gap is kept constant
by the welding plant.
c. Both travel speed and arc gap is controlled by the welding plant
i d. All of the above.
28. What is purpose of a rectifier in a welding sets electrical circuit?
/ a.
b.
To keep the arc stable when using low current settings
To convert AC current to DC current.
c. To convert DC current to AC current.
d. To initiate the arc at start up.

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Name: /5khJe/..
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I. The likelihood of a brittle fracture in steels will increase with:

--
a. The formation of a fine grain structure.
b. A reduction in-service temperature to sub-zero conditions.
3
c. A slow cooling rate.
/
/
Hydrogen cracking in HAL is most likely to occur when welding:
a. Carbon manganese steels.
b. Austenitic stainless steel.
c. Micro alloyed steel (HSLA).
<--
d. Low carbon steel.
*. . .&
Which of the following are considerations for the s6Teedltn of a preheat
B temperature: 9
a. Carbon equivalent, joint design, welding process type and plate material
.. r .
quality.
. .
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b. All Joints over 25'mm thick, hydrogen leuels,
equivalent. .. .
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welding process, carbon
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c. Arc energy, material thickness,'hydrogen scale and carbon equivalent.

d. All of the above are considerations for the selection of a preheat
temperature.

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,4.
,' Which of the following destructive tests would indicate the toughness value of
the weld metallparent metal and HAZ?
a. Macro.
b. Nick break.
c. Tensile.
/ d. Charpy Vee notch.
/ What constituent is needed in a coating of an electrode to prevent the

formation of porosity when welding rirr~mingsteel?
a. Iron powder.
b. Potassium silicate.
c. Silicon
d. Calcium carbonate.
+t.
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8/ Welds made with high heat inputs show a reduction in one of the following
properties?
a. Ductility.
b. Toughness.
c. Elongation.
d. Penetration.
Which of the following steel types would give rise to the formation of porosity
when autogenously welded with an a& welding process
a. I=iifiy
killed steel.
b. Semi killed steel.
c. Rimming steel.
d. Balanced steel.

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r'
B' . Which of the following elements, which may be added to steel, has the
greatest affect on creep slreength.
a. Tungsten.
b. Manganese.
c. Carbon.
d. Molybdenum.
/
The HAZ associated with a fusion weld:
d,
a. Can not be avoided.
3 b. Usually has the highest tensile strength.
c. Is usually martensitic.
d. Both a and b.
I# What four criteria are necessary to produce hydrogen induced cold cracking?
L a. Hydrogen, moisture, martensitic grain structure and heat.
b. Hydrogen, poor weld profiles, temperatures above 200°C and a slow
cooling rate.
c. Hydrogen, a grain structure susceptible to cracking, stress and a
temperature below 200°C.
d. Hydrogen, existing weld defects, stress and a grain structure
susceptible to cracking.
i
b
A carbon equivalent (CE) of 0.5%:
/ a. Is high for carbon manganese steel and may require a preheat over
10o0c
b. Is generally significant for carbon for manganese steels and is certainly
not to be taken into consideration for preheat temperatures.
c. Is high for carbon manganese steels and may require a preheat
temperature over 300°C,,as W v o i d cracking
*we
d. Is calculated from the heat input formula. * -9
...M "
,.-
-
.*.;

TWI
l&!iiif THE WELDING INS-TITUTE
di In a martensitic grain structure what would you expect to increase?

a. Ductility.
b. Hardness.
c. Toughness.
In which of the following mechanical tests would you expect to use a

comparison from ductile to brittle transition curve.
a. Tensile test.
b, Charpy test.
c. Fusion zone test.
d. Alloftheabove
Which of the following heat treatments on steel cools down in air from the
austenite region?
a. Normalising.
b. Annealing.
c. Tempering.
d. Stress relieving.
d What is the purpose of microscopic examination of a weld?

a. To determine the number and tyw of defects present.
b. To determine the grain size.
c. To determine the strength of the weld.
d. Both a and b.

TWI
lz!i!Iy THE WELDING INSTITUTE
i
1.6: Which of the following units is a tensile specimen usually measured in? ,
a. Pounds per square inch.

b. Newton per square inches.
c. Joules.
d. Both a and b.
Assuming that the welding process, material thickness, carbon equivalent and
the welding parameters to be the same, which of the following joint types
would normally require the highest preheat temperature.
t a. Edge joint.
b. Lap joint.
c. Butt joint (single-V).
d. Tee joint (fillet welded).
Austenitic stainless steels are more susceptible to distortion when compared

to ferritic steels this is because:
a. High coefficient, low thermal conductivity.
b. High coefficient, high thermal conductivity.
c. Low coefficient, high thermal conductivity.
6:'' Low coefficient, low thermal conductivity,
i
f Which of the following will most likely require the preheat temperature to be
increased?
a. An Increase in travel speed.
*
b. A reduction in material thickness

c. An increase in electrode diameter
1 d. None of the above.

TWI
izi!!J/ THE WELDING INSTITUTE
20. Which of the following properties may be applicable to a carbon steel weld (CE
/
' 0.48) welded without preheat?
a. Narrow heat affected zone and hardness value in excess of 400 HV.
b. Broad heat affected zone and hardness values in excess of 400 HV
c. A very tough and narrow heat affected zone.
d. Narrow heat affected zone and low hardness values.
4 Which of the following materials is considered to be the easiest to weld?

a. Mild steel.
b. Medium carbon steels.
c. Martensitic stainless steel
d. Forging steel.
Which of the following test pieces taken from a charpy test on a carbon-
manganese steel weld, welded with a high heat input is most likely to have the
lowest toughness
a. Test piece taken from parent metal.
b. Test piece taken from weld metal.
c. Test piece taken from HAZ.
d. All of the above values will be the same.
Which of the following butt weld preparations would normally be considered for
a mechanised weldirrg process Q
a. Single-V butt, root gap 2.5 mm (welded from on side only).

b. Double-V butt-welded both sides, root gap 2.0 mm.
c. Single4.J butt with backing.
d. None of the above can be used for mechanised welding.

TWI
THE WELDING INSTITUTE
i
Which is the correct heat input for the following parameters, amps 350, volts
32 and the travel speed 310 mmlminute (MMA welding process)?
Assuming
e. that the applicable specification makes no mention of arc strikes,
f'
d what would you expect to do as a welding inspector if arc strikes were found
on a component made of a high tensile strength material.
1
a. Have the welder re-qualified.
b. Ignore them.
c. Have ,the area checked for possible cracking.
d/ Cut out the entire weld where the arc strikes exist.
/'
4 A multi-pass MMA butt weld made on carbon steel consists of 5 passes

deposited using a 6mm diameter electrode. A 12-pass weld made on the same
joint deposited using a 4mm diameter electrode on the same material will
have:
a. A lower heat input and a higher degree of grain refinement.
b. A lower heat input and a coarse grain structure.
c. A lower amount of distortion and a higher degree of grain refinement.
\
d. A higher amount of distortion and a lower degree of grain refinement.
f7. What is the purpose of a transverse tensile test?

/ a. To measure ultimate tensile strength.
b. To measure the elongation of a material
c. To measure the yield strength of a material

TWI
lzi!JI THE WELDING INSTITUTE
/" . Which of the following mechanical tests can be used to give a quantitative
measurement of weld zone ductility?
a. Tensile test.
b. Bend test.
c. Charpy V notch test.
All of the above.
si
2 . Which of the following are reasons for applying preheat?
b.
c.
The removal of residual stress.
To aid slow cooling and reduce the carbon content.
To reduce the chance of a brittle grain structure and to reduce the
chance of hydrogen entrapment.
d. Increase the ultimate tensile strength values and increase overall
weldability.
4
1
Which of the following are true with regards to a charpy test.
a. It's a static test used to determine a materials notch toughness in the
weld region.
b. It's a dynamic test used to determine a materials notch toughness in the
weld region.
c. It's a destructive test to give a measurement of through thickness
ductility.

TWI
lzi?il7/ THE WELDING INSTITUTE

.
Name: ...... ................................................
1. Degreasing components are essential for quality welding but when welded
some agent may:
a. Cause corrosion problems.
b. Leave residues
c. Give off toxic gases.
2. Cellulose electrodes are often used for the deposition of a root pass on pipes
welded in the field. This is because?
a. Hydrogen control is required.
b. The high deposition rate due to the iron powder content.
c. The hydrogen gas produced in the flux increases the arc voltage.
3. In the weldivg of austenitic stainless steels, the electrode and plate materials
are often specified to be low carbon content. The reason for this:
a. To prevent the formation of cracks in the HAZ.
b. To prevent the formation of chrorr~iumcarbides
c. To prevent cracking in the weld.
d. Minirnise distortion.

TWI
lzi!!I/ THE WELDING INS1-I-TUTE
4. With regards to a welding procedure, an essential variable may:

a. Change the properties of the weld.
b. Influence the visual acceptance.
c. Require re-approval of a weld procedure.
d. Alloftheabove
5. Which of the following NDT methods can only detect surface breaking
defects?
a. MPI
b. DPI.
d. RT.
e. Both a and b.
6. Which of the following defects would show up as light indications on a

radiograph?
a. Slag inclusions and copper inclusion.
b. Tungsten inclusions and excessive root penetration.
c. Cap undercut and root piping.
d. Excessive cap height and incomplete root penetration
7. Which of the following additions may be added to an electrodes flux to act as a

sta bilizer?
a. Sodium silicate
b. Silicon
c. Manganese
d. Titanium dioxide.

TWI
lzi!!L7/ THE WELDING INSTITUTE
8. Lamellar tearing is best prevented by:

a. The use of plate materials containing low levels of impurities.
b. The use of buttering runs.
c. Post weld stress relief.
d. Both a and b.
9. When considering radiography using X-ray, which of the following techniques

is most likely to be used for a pipe to pipe weld (circumferential seam), 610mm
diameter with no internal access?
a. SWSI.
b. DWSI.
c. DWDI.
10. A balanced welding technique for example back step welding is most often
used for:
a. Controlling lamellar tearing.
b. Increasing weld toughness.
c. Reducing weld zone hardness.
d. Reducing distortion.
11. Basic coated electrodes have which of the following properties.

a. High mechanical properties may be used to produce welds of high
deposition rates and to produce welds of low hydrogen content.
b. Friable slag, high mechanical strength, and to produce welds of a low
hydrogen content.
c. Low hydrogen content welds, good stoplstart properties and high
strength.
d. Low carbon content welds, friable slag and high strength.

TWI
izi?I/ THE WELDING INSTITU-TE
12. On a radiograph, the most likely appearance of lack of root fusion on a single,
V butt weld is:
a. A dark straight line with a light root.
b. A dark root with straight edges.
c. A dark uneven line following the edge of the root
d. None of the above lack of root fusion can not be seen on a radiograph.
13. Which of the following applies to the heat treatment process of tempering
a. It is always carried out at a temperature above upper critical limit.
b. It is carried out to increase the strength and toughness of weldments.
c. Tempering is generally carried out before quench hardening.
d. None of the above
14. Which of the following is applicable to a plate lamination

a. They are best detected by radiography.
b. They are mainly caused by hydrogen entrapment.
c. They originate in the parent material.
d. They are caused when welding stresses act parallel with the rolled
direction of the parent plate.
15. Which of the following NDT methods would be the least effective on an
austenitic stainless steel butt weld.
a. UT.
b. RT.
c. DPI.
d. MPI.

TWI
lz5!5i~ THE WELDING INSTITLITE
16. The hardest part of a multi-pass welded joint, assuming no post weld heat ..
treatment has have taken place is:
a. The HAZ of the cap.
b. The HAZ of the root.
c. The root.
d. The cap.
17. Is it perrr~issibleto allow a multi-pass butt weld to cool down between weld
passes?
a. It should be up to the welding inspector.
b. No the weld must be kept hot at all times.
c. It depends on the welder
d. It depends on the specification requirements.
18. A tee joint on a support bracket is to be welded both sides using a 5 mm leg
length fillet weld, each weld is to be intermittent 50 mm in total length, the gap
between each weld is to be 25 mm. Which of the following is the correct
symbol in accordance with I S 0 2553?

TWI
lzi!?II THE WELDING INSTITUTE
19. The usual method of assessing the sensitivity and density of a radiograph is hy
means of:
a. Densitometer and dosimeter.
b. Penetrameter and a densitometer.
c. IQI and a dosimeter.
d. IQI and a fluxmeter.
20. In the submerged arc welding process, the use of excessive high voltages
w o ~ ~result
l d in?
a. Insufficient flux melting.
b. Excessive flux melting
c. Slag removal difficulties.
d. Excessive spatter.
21. Welding a steel plate with a CE of 0.45 would require preheating to?
a. Prevent the formation of sulphides.
b. Prevent hardening in the HAZ.
c. Prevent the formation of carbides.
d. To reduce the amount of current required.
22. Which of the following welding process uses a resistive heating system to
achieve weld metal deposition?
a. MMA
b. Resistant spot welding.
c. Electro-slag.
d. Friction welding.
WIS 5 QU paper MSR-WI-4

TWI
lz2!I/ THE WELDING INSTI1-UTE
23. What does the 70 represent on an E70 10 AWS A5.1 classified electrode? .
a. 70 ~ / m m
minimum
~ UTS.
b. 70 joules niinimum impact strength.
c. 70,000 p.s.i. Minimum yield strength.
d. 70,000 psi minimum UTS.
24. Hot cracking in steel weldments occurs:

a. Along the fusion line.
b. In the last metal to solidify.
c. Weld centre line
d. In areas of the lowest dilution.
25. Cellulose electrodes have which of the following properties?

a. Viscous slag, large volumes of shielding gas and UTS values above 90,000
psi.
b. Large volumes of shielding gas, high spatter contents and hydrogen levels
< 15 ml per 100g of weld metal deposited
c. Large volunies of shielding gas, hydrogen contents > 15 ml per 100g of
weld metal deposited and should be never baked.
d. High spatter contents, high deposition and large volumes of gas st~ield.
26. From the following electrode coding in BS EN 499, E50 3 1Ni B 140 0 1 H5 ,
what does the 2 represent
a. A mil-~imumcharpy value of a 30 joules.
b. A minimum impact value of 47 Joules.
c. A minimum impact temperature of -30°C at a given Joule value.

TWI
lzi!flI THE WELDING INSTITUTE
27. Which of the following is applicable to electrode efficiency?

a. The mass of metal deposited as a percentage of the mass of core wire
me1ted.
b. Iron powder electrodes have efficiencies above 100%.
c. Electrodes of high efficiencies tend to produce welds of a smooth flat
profile.
d. Both a and b.
28. A Fatigue cracks fracture surface is:

a. Rough randomly torn.
b. Smooth.
c. Step like appearance.
d. Bright crystalline.
29. E6013 electrode would most probably used for welding:

a. Low pressure pipework.
b. High-pressure pipework.
c. Vertical down welding on storage tanks.
d. In a situation where low hydrogen welds are specified.
30. Which element in steel if present in significant amounts may lead to hot
shortness?
B
a. Phosphorus.
b. Manganese.
c. Silicon.
d. Sulphur

Candidate: Date:
FINAL ASSESMENT MULTIPLE - CHOICE QUESTION

CSWIP 3.1 WELDING INSPECTOR COURSE
MFY - 001
ALL QUESTIONS TO BE ATTEMPTED
EXAMINATION TIME : 30 MINUTES
1. Which of the following does not contribute to hydrogen cracking:
a. External forces on the weldment
b. Amount of hydrogen in the weld
@ Residual stresses in the weld

d. Size and length of linear discontinuities
2. For the arc air carbon cutting process the air is
a. Use for cooling the electrode only
b. Produced through the chemical reaction of the electrode and the base
metal
Supplied through air ports in the electrode holder and directed along
the electrode
d. Supplied by another torch also by other operator
3. Acetylene hoses are distinctly difference from oxygen hoses .Why?
A Because the internal diameters of the two are different
B Because of operating pressure differences between fuel gas and oxygen
c. Acetylene attacks the materials used in oxygen hoses
, O o prevent accidental interchange

-
4. Which of the following can result in a hard and brittle condition resulting from
rapid cooling:
@rc strikes
B. Excessive weld reinforcement
c. Excessive spatter
d. Slag inclusion
5. DC negative when used for MIGMAG can give smooth arc.
A. True
6. In which of the following process is the use of pressure required to

successfully joint the materials:
A. TIG
B. MMA
c. SAW
@stud welding
7. Which of the following will contribute significantly to lack of fusion
a l n c o r r e c t joint design
L- ~
B. Incorrect welding technique
c. Heavy scale on the joint surface
d. All of the above

8. Which of the welding process used loose granular flux:
A. FCAW
@AW
c. GTAW
d. SMAW
9. Crack Tip Open Displacement test is used to measure
A. Strength of the material being tested
a a r d n e s s of the material
c. The toughness of the materials, resistance to crack extension and the

acceptable flaw size all
d. Ductility of the material being tested
10. The pulsed MIG/MAG mode of transfer is a variation of a spray transfer

mode that make used of a low background current with a higher, rapidly
pulsing current superimposed on it.
A. False
@ True
11. The iron carbon diagram is used by metallurgists and others to see how:
.
a Adding nickel changes the corrosion resistance of steels
@ Adding carbon changes the response of the steel to temperature

'changes
c. adding molybdenum increases the toughness of steel
d. adding chromium improves corrosive corrosion resistance

12. The main purpose of a developer is to :
a . Assist in the development of the test procedure
.
b Provide a clean surface for the penetrant indication
p s i s t in the development of the penetrant indication from a defect
d. Assist in the drying of the penetrant
13. Overlap in a fillet weld would occur :
a . At some point in the weld throat
.
b only on the face of the weld
@the toe of the weld

d. At the root of the weld
14. In the TIG welding process, gas shielding of the weld pool maybe provided
by which gas (es )
.
a carbon dioxide
b . argon and oxygen
,@argon and helium

d. oxygen and helium
15. Welding flux :
a . Helps on control the temperature of the pieces being welded
b . Crates a temporary bond between the pieces being welded
c. Protects from the atmosphere and removes the oxide film on the
Qur face
d. Makes it easier to move the electrode

16. Increasing the carbon content of steel allows a given level of hardness to be
achieved :
@ at a higher cooling rate

b . without consideration of the cooling rate
c. without adding chromium to the steel
d. At lower cooling rate
17. Which is not a factor that should be considered in selecting the best shielding gas
mixture for a given application:
a . weld appearance and acceptable spatter level
b . thickness,joint design and penetration requirements
c. the welder's personal requirements
& Transfer mode

18. Which of the following is not considered to be cause of incomplete fusion
.a Welding current exceeding that specified on a WPS
@ Using too large an electrode for a narrow Vee

c. Improper manipulation of the electrode
d. Using the wrong type of electrode

19. Which is an advantage of an argonhydrogen gas mixture in TIG of stainless
stee1
a . Lower heat input
b . Improved toughness
c. Faster travel speed
d. Improved mechanical properties
20. Some MMA electrodes for the welding of stainless steel have a low carbon
Steel core wire and the alloying elements in the covering. This is because :-
a . The core wire offer lower resistance to the passage of the welding
current
@ The manufacturer can more conveniently include alloying elements

in the covering than produce special core wires
c. Both for reasons a and b above
d. For some reason not listed above
21. Sulphur is sometimes added to steel to improve:
.
a The impact properties of the welded joint
b . Provide higher impurities levels
c. Toughness of the parent materials
@ Machining properties characteristics of the steel

22. Slow cooling of liquid metal from high temperature promotes the growth of :
a .Medium grains
b . Large grains
C
i a m a l l grains
d. A combinations of large and small grain

23. A defect can best be described as :
a .All types of flaw in a weld regardless of size
b . Meaning exactly the same thing as a discontinuity
c. Any type of weld flaw
, A discontinuity judged to possibility interfere with the fit for purpose

of the weld
24. A CC ( Drooping arc ) power source is suitable for
@MMA - TIG
b . M I G N A G - FCAW welding process
C. SAW - MIGJMAG
d. MMA - NCIG/R/IAG
25. In Gas Metal Arc Welding (GMAW ) , spray Transfer may be achieved using
shielding gases containing
p o r e than 85 O h argon
b . Less than 50 % Argon

c. 100 O/O carbon dioxide
d. Less than 75% argon

26. When welding with a weave technique the heat input using the same welding
parameters( amps and volts ) as those used for stringer bead will be :
a . Lower than that for the stringer bead
b . Unaffected because techniques has no influence on the heat input
@will be higher than the stringer bead because the travel speed will be
lower
d. The same as that for the stringer bead
27. Welding in cold weather conditions is mostly commonly associated with

increased risk of :
a . Undercut
b . porosity
c. Slag Inclusion
@ Cracking
28. Hydrogen trapped in the weldment can cause hydrogen cracking if the contents
of hydrogen are too high. What is the other name commonly used to describe
hydrogen cracking?
a . Fissure cracks
b . Hot cracks
c. Supercritical cracks
@old cracks
29. Steel is often heat treated after it is made at the steel mill. When a steel is
normalized what is the primary objective of this process ?
.
a To increase the hardness
b . To decrease the amount of carbon in the steel
c. To increase the low temperature toughness of the steel
c?d. o improve the tensile strength
30. The recommended drying temperatures and time required producing a

condition below 5 ml H2 / 100 grams of weld metal when using basic electrodes
would be :-
a . Below 150' C for 1 hour
b . 250 O C for 1 hour
@ Over 350' C for I hour

d. 600' C for 1 hour
MULTIPLE - CHOICE QUESTION
MFY - 006
EXAMINATION TIME: 30 MINUTES
J' In FCAW and GMAW, for a given electrode diameter, as the amperage
increased the wire speed will
a. Increase
b. Stay the same
c. Increase for GMAW and decrease for FCAW
d. Decrease
/
/'
/2'
I
When using GMAW, welding of aluminium, the liner should be made of
a. Ceramic
b, Nylon
c. Cooper
d. Steel
Fluxes of SAW are generally name by the method of manufacturer such as :
a, Fused,agglomerated and mechanically types

b. Fused,agglomerated and granular types
c. Fused,ground and mechanically mixes types
d. Granular,agglomerated and mechanically mixed types
1
In GTAW process an arc is formed between: -
a. No arc is present
b. The tungsten electrode and the work piece
c. The tungsten electrode and the frller metal rod
d. The filler rod and the work piece
. In the Gas Tungsten Arc Welding process, gas shielding of the weld pool may
1
I
be provided by which gas(es) :
a. Carbon dioxide
b. Argon or Helium
c. Argon or Oxygen
d. Oxygen or Helium
,/'
'
Travel speed is the rate at which the welding gun progresses along the joint.As
,F the travel speed is increased:
a. The heat input of the joint increased

b. The heat input into the joint is decreased and the penetration is
decreased
c. The penetration is increased
d. The penetration become increased and the weld bead becomes higher
and wider
There are four methods used to initiate the arc in the Gas Tungsten Arc
Welding ( GTAW) process. Which method has the potential problem of
contaminating the electrode and transferring tungsten to the work piece :
a. Pulsed start method

b. High frequency start method
c. Scratch or touch start method
d. Pilot arc start method
The pulsed Gas Meta Arc Welding process is only suitable for flat welding
position only
a. True
b. False
c. Vertical only
d. Flat and vertical
/' In Shielded Metal Arc welding the molten metal is protected by:
a. The molten metal is not protected

b. External carbon dioxide
c. Gases created from the composition of the electrode covering
d. External argon shielding gas
Electrodes for Shielded Metal Arc Welding (MMA) may be manufactured

with any of three different coating types, the three types are:
a. Basic ,normal and cellulose

I h. Rutile,cellulose and basic
c. Rutile,basic and normal
d. Rutile ,cellulose and normal
1 In general, the Gas Metal Arc Welding (GMAW) mode of transfer best suited
1 for welding thin sheet is :
a. Spray
b. Globular Transfer
c. Should not use GMAW for welding thin sheet steel
d. Short circuiting transfer
7''" The pulsed mode of transfer (GMAW) is a variation of the spray transfer
mode that makes use of low background current with a higher,rapidly pulsing
current superimposed on it
a. True
b. False
A In general, globular transfer has less spatter than spray transfer
a. False
B. True
The shielding gas that is commonly used in Flux Cored Arc Welding ( FCAW )
Process is:
a. Hydrogen
b. Carbon Dioxide
c. Helium
d. Argon
.
P P In general, the amount of oxygen in a mixed gas for use with Gas Metal Arc
Welding (GMAW) should be limited to:
a. Oxygen should never be used

b. 10% maximum
j
c. 2% maximum
d. 50% maximum
In Gas Metal Arc Welding and flux Cored Arc Welding, as the arc length
decreases, the voltage increases
'a. FaIse
b. True
'
17. When using the Gas Tungsten Arc Welding process for welding aluminium,
the use of AC current is recommended,as the half cycle where the electrode is -
positive provides a cathodic cleaning action to remove oxide from the surface
of the base metal: -
a. True
b. False
When using Gas Metal Arc Welding (GMAW) process, straight argon may be
successfully used as a shielding gas when welding the following material(s):
a. Aluminium
b. Steel or Aluminium
c. Steel
d. Straight argon is never used
19 The FCAW process may normally be used to weld the following material(s)
a, Low carbon steels and austenitic stainless steel

b. Aluminium and low carbon steel
, c. Aluminium
d. Copper and bronze
4;' A 70 % duty cycle means that a machine may, at its rated output, run:-
a. One hour out of every seven hours

b. Seven minutes out of every ten minutes
c. Forty two minutes out of every one hour continuously
d. Seven minutes out of every hour
Three main modes of transfer in Gas Metal Arc Welding ( GMAW ) are:
a. High arc, globular and short circuiting

b. Spray, high arc and drooping
c. Spray,globular and drooping
d. Spray,globular and short circuting
7' In Gas Metal Arc Welding (GMAW), spray transfer may be achieved using
shielding gases containing :-
a. Less than 50% argon

b. 100% Carbon Dioxide
c. More than 85% Argon
d. Less than 7Soh Argon ,
7' The following gas(es) is (are) considered inert:
a. Helium and oxygen

b. Argon and Oxygen
c. Argon and helium
d. Carbon Dioxide
,/'
. If the welding machine is operated at higher current than its output but still
/ within the capacity of the machine, the duty cycle must be increased
a. True
//A constant current power source is suitable for the :

I" a. SMAW and GMAW
b. SMAW and SAW
c. FCAW and GTAW
d. GTAW and Plasma GTAW
The addition of deoxidizer, such as silicon and aluminium, to GMAW

electrodes allows filler metal to be used to weld steels that have a rusty or dirty
surface ( although a sacrifice in weld quality is possible).
a, True
b. False
,&
\''
In C02welding, which modes of transfer is the most suitable to be used in the
vertical position
a. Globular
b
., Axial spray
c. Dip or short circuiting
d. All of the above
/
Before use, electrodes classified as BS 639 : 1986 E 42 43 R 10 or AWS type E
6013 need to be:-
a. Dried for 1hour a t 45 C'

b. Dried for 2 hour at above 120 O C
c. No drying or what so ever
d. Dried for 1hour a t 120 O C max.
J Which of the following defects would be likely to occur if the specified

preheating temperatures are not adhered to when carbon manganese steels:
a. Slag inclusion
b., Delay cracking or cold cracking
c. Lack of sidewall fusion
d. Surface porosity
I"' The usual method of assessing the sensitivity of a radiograph is by means of:
a. Dosimeter
-
b. Fluoroscope
c. Penetrameter
d. Multimeter
MULTIPLE CHOICE QUESTION
CSWIP WELDING INSPECTOR COURSE
MFY 007
ALL OUESTION TO BE ATTEMPTED
1. Chromium molybdenum steels for high temperature service typically have their
carbon content below 0.2% What other element is added to the steel to create a
stable steel at elevated temperatures?
a. Vanadium
b. Selenium
c. Sulphur
d. Nickel
12
. Which of the following could be used to prevent intercrystalline corrosion in
Austenitic Stainless steel?
-a. Vanadium
b. Selenium
c. Sulphur
d. Niobium
J.
3 Which of the following metals is most easily to be welded?
a. High strength steel

b. Stainless steel
c. Medium carbon steel
J
d. Mild steel
4 . Hydrogen trapped in the weldment can cause hydrogen cracking if the content of
hydrogen is too high What is the other name commonly used to describe
hydrogen cracking?
a. Hot tears
b. Liquation cracking
c. Reheat cracking
; e. Delay cracking
2'
/
d'
.Which of the following is not a pattern that the atoms of steel arrange themselves
in?
e
a. Body centered cubic

b. Body centered tetragonal
c. Face centered cubic
d" d. Diomond centered cubic
.A hard and brittle microstructure in a low alloy steel can be improve its
properties to soft and ductile by :
a. Increasing the heat input during welding

b. Must follow by post heating after welding
/ c. Hardening
d. Annealing
What happen to the properties of the steel when the carbon is increased to 0.6%?
a. Ductility increases
b. Weldability increases
, c. Malleability in increases
f
/ d. Tensile strength iucreases
What is the affect will occur to a carbon manganese steel if the steel has been
rapid cooled from austenite region?
a. It becomes ductile
b. The toughness increases
c, Its hardness increases
d. Its yield strength decreases
.Which of the following statements is true with regards to hydrogen cracking?

a. It is because of rapid cooling of weld metal and others factor
h. It is a hot type of crack
c. It only occur in the HA2
d. Ductile grain structure is the most susceptible to hydrogen cracking
0. The arc energy during a welding process :
a. Does not effect the toughness of weldment

b. Must be high in order to avoid lack of fusion
c. Affects the width of HAZ
d. All of the above
/
kin a martensitic grain structure what would you not expect to increase?
a. Strength
b. Hardness
c. Toughness
d. All of the above
.Nitrogen and oxygen are considered to be important elements during the steel
making process :
a. cause sulphur to isolate in the steel

tf cause imperfections if not removed in sufficient quantities
c. improve the quality of steel
d. Improve the surface appearance of the steel
\63. Sulphur is added to steel to improve:
a. Strength
b. Hardness
c- Toughness
d. Machine characteristic of the steel
d4.Oxygen and sulphur in steels for a non metallic inclusion during the rolling
process and can lead to what after welding:
a. Sulphide precipitation
b. Oxygen rich welds
c. Lamellar tearing
i d. Stress corrosion
.Steel is an alloy composed mainly of :

a. coke and iron
b. magnesium and copper
c. carbon and chromium
d. iron and carbon
li6. When weave technique the heat input using the same welding parameters (amps
and voltage) as those used for stringer bead will be:
,
a. Be the same as that for the stringer bead

h. Lower than that for the stringer bead
c. Will be higher than the stringer bead
d. Unaffected because technique has no influence on the heat input
b. Heat treating will:

a. improve the yield strength of the steel on$
b. increase the elongation of the steel only
c. alter the chemical composition of the steel
8. not improve the properties of steel as a whole
Js. The region of M Z that gets heated to a temperature between 700 c and 900 c is
called:
a. wide band HAZ

b. Tempered HAZ
c. Spherodised HAZ
d. Intercritical HAZ
1 9. The fully transformed HAZ located next to the fusion boundary in a weldment is
tbe area:
a. Where cracking does not occur

b. Where cold cracks will not occur
c. With lowest tendency to form cold cracks
d. With the highest tendency to cold cracks
J20. Martensite is a hard phase in steel and highly dependent on its properties from
the amount of carbon trapped in the Body Centered Cubic atom arrangement.
When carbon is trapped in this atom arrangement to cause the:
a. Carbon dissolves in this iron

b. Carbon atoms cause the BCC shape to distort resulting in increased
hardness
c. Iron transforms to pig iron
d. Carbon separates out to form isolated island martensite
'I-21. Slowly cooled of mild carbon steels have a microstructure with:
ti
a. High tensile strength
b. Lowest strength and the highest ductility
c. Highest strength with lowest toughness
d. Brittle structure
The ability of the alloy steel to form martensite can be determined by its :
a. Iron carbon diagram

b. equilibrium diagram
I ~r Carbon equivalent value
1 d. Transition curve diagram
d23. The formation of hard and brittle grain structure in alloy steel can be controlled
a. Used of low arc energy

b. Increase the material thickness
c. Pre heating the material to welding
iF, All of the above
24. The cooling rates of weldment is very critical where it can gives a formation of
martensite or Bainite. What factors that will influence the cooling rates?
a. Type of consumables and materials

b. Size of electrodes and welding position
c. Thickness, material size and thermal conductivity
1 8. All of the above
J 25. The main factors likely to cause lamellar tearing are thus:
a. Materials with lamination

b. Materials with greater thickness
c, Materials with high thermal conductivity
d. Low, short transverse ductility materials
$6. The combination of iron and sulphur during welding will promotes :
a. Globular form of microstructure along the grain boundaries

b. Higher strength of the centre of weld metal
c. Low melting point along the grain boundaries
d. Higher hardness of weld metal compared to HAZ
31 7. The purpose of #rough thickness test is to determine:
a. the susceptibility of materials to hot cracking

b. the strength of through thickness of materials
c. the amount of energy absorb and toughness of materials
1 d. susceptibility of steel plate to lamellar tearing
8. Which following factor does not contribute to the formation of solidification

cracking:
a. High dilution welding process

b. Low travel speed applied during welding
c High sulphur materials
I d. Fast travel speed
Which of the following statement is correct for multi run welding compare to
single passed welding:
a. High productivity can be produced with multi run

b. Higher distortion with multirun compare to single run
c. Higher energy absorbed and higher toughness with multirun
/
d. Multi run welding less cracking to occur
O. What alloying element that may helps on controlling of intercrystaline corrosion

in austenitic stainless steel
,9 Molybdenum
b. Vanadium
A. Columbium (Niobium)
d. Cooper
Candidate: Date:
FINAL ASSESMENT MULTIPLE - CHOICE QUESTION

MFY - 009
1. Porosity occur at the surface of submerged arc weld in steel may be due to:-
a. Over baked of flux

b. Work oxide layer
c. Damp flux
d. Incorrect joint design
2. A bright crystalline appearance on a fracture surface is characteristics of
a. Fatigue failure
b. Ductile failure
c. Stress corrosion
d. Brittle failure
3. Which of the following method for NDT would be the best method for
detecting centerline surface crack in Austenitic stainless steel being made in
the field
a. Eddy current testing

b. Visual inspection
c. Magnetic Particle Testing
d. Dye penetrant inspection
4. In which welding position would deposit most weld metal: -

5. When welding fillet weld with vertically down progression, which of the
following defects might easily to occur?
a. Excessive penetration
b. Excessive porosity
c. Excessive concavity
d. Unequal leg size
6. Which type of materials would require highest pre-heat temperature to avoid

thee formation of hydrogen induced cold cracking at HAZ?
a. Nickel alloy steel

b. Micro alloy steel
c. Carbon manganese steel
d. Stainless steel
7. Which mode of metal transfer in MIGIMAG process is the most suitable to be

used when weld in the vertical position :
a. Globular
b. Short circuiting
c. Spray
d. All of the above
8. A crack type defect with step like appearance shown in a macro section
,parallel to the plate surface just outside the HAZ would be:-
a. Stress corrosion
b. Liquation crack
c. Lamellar tearing
d. Lamination
9. Which composition range describe about 'ferritic' type of stainless steel:-
a. 12.OoA - 14% C r ,0.05 - 1.10% C

b. 12.0%- 14% C r ,0.25 -1.35% C
c. 18.0% - 20.0% Cr,8 - 10% Ni, 0.10% C
d. -
23.0% 25.0% C r ,18.0 - 2.0% Ni ,O.lO%C
10. In fusion welding process, which is the most influence variable that control the
penetration
a. Travel speed
b. Voltage
c. Arc length
d. Amperage
11. You noticed that arc strike has occurred in a high yield strength steel, would
you:-
a. Stop the welder and ask him to requalify

b. Reject the entire fabrication
c. Just ignore them
d. Examine the area for cracking
12. The strength of fillet weld is primary control by :-
a. Leg length
b. Weld length
c. Weld face width
d. Throat
13. When using the GMAW process for the welding of aluminium, the liner should
made of:
a. Nylon
b. Graphite
c. Steel
d. A liner should not be used
14. Which is the compulsory part of an electrode classified to BS E N as

E 46 3B 160 20 H
a. E 46 3 B 160
b. E 46 3 B 160 20
c. E 46 3 B
d. All of the above
15. In Manual Metal Arc Welding which type of flux covering gives the highest
hydrogen level to produce deep penetration
a. Iron oxide
b. Acid and oxidising
c. Rutile with addition of iron powder
d. Cellulose
16. Crater pipe in welds made by Manual Metal Arc cause by: -
a. The electrode too damp
b. Condensation of parent metal
c. Stress acting along the crater
d. Poor welder's technique
17. When approving procedure to BS EN 288 -3 the welder: -
a. Is automatically approved
b. Is approved to the same specification
c. Is approved to a separate specification
d. Is approved for the same range of approval
18. Which statement with regards to Open circuit voltage is not true:-
a. OCV is the voltage between the terminals when welding

b. The voltage occurs before welding or without load
c. AC machine has higher OCV compare to DC current
d. DC current more safer than AC current due to lower OCV value
19. Inverters are: -
a. Less efficient than conventional machine

b. Capable of being either CC or CV
c. Inferior in volt - ampere characteristics
d. Bulky and heavy
20. A 70 % duty cycle means that a machine may, a t its rated output, run:
a. One hour out of every seven hours

b. Seven minutes out of every ten minutes
c. Forty two minutes out of every one hour continuously
d. Seven minutes out of every hour
21. Martensite is a hard phase in steel and is highly dependant on its properties
from the amount of carbon trapped in the Body Centered Cubic atom
arrangement. When carbon is trapped in this atom arrangement what happens
to this arrangement to cause the
a. carbon atoms cause the BCC shape to distort resulting in increased

hardness
b. Iron transform to pig iron
c. Carbon dissolves in the iron
d. Carbon separates out to form isolated islands martensite
22. Hot shortness is term used to indicate
a. Lamellar tearing
b. Hydrogen cracking
c. Solidification cracking
d. Hot electrical shock
23. The important point of high temperature steels is that:-
a. They can withstand creep failure

b. They may suffer re-heat cracking problems
c. They may suffer loss of toughness
d. All of the above
24. Ultrasonics would be preferred over radiography due to:-
a. Ability to find most defects

b. Lower skill requirement
c. Ability to detect laminations
d. Both a) and c)
25. Argon is not generally used as a shielding gas when MIG welding carbon steel
because:-
a. The price is too expensive compare with carbon dioxide

b. penetration is poor
c. Argon increase spatter levels
d. Poor cap profile or weld contour
26. Which of the following alloying elements can reduce the effect of ' temper
brittleness" in steel when operated a t elevated temperature.
a. Nickel
b. Chromium
c. Vanadium
d. Nlolybdenum
27. In C 0 2 welding, which modes of transfer is the most suitable to be used in the
vertical position
a. Globular
b. Axial spray
c. Dip or short circuiting
d. All of the above
28. Before use, electrodes classified as BS 639 : 1986 E 42 43 R 10 or AWS type E

6013 need to be:-
a. Dried for 1 hour at 45 C '

b. Dried for 2 hour at above 120 O C
c. No drying or whatsoever
d. Dried for 1hour at 120 C max.
29. Which of the following defects would be likely to occur if the specified
preheating temperatures are not adhered to when carbon manganese steels: .
a. Slag inclusion
b. Delay cracking or cold cracking
c. Lack of sidewall fusion
d. Surface porosity
30. The usual method of assessing the sensitivity of a radiograph is by means of: -
a. Dosimeter
b. Fluoroscope
c. Penetrameter
d. Multimeter
Candidate: Date:
MLTLTIPLE - CHOICE QUESTION

MFY - 010
1. The use of preheat will tend to :
a. result in a wider heat-affected zone

b. produce a lower heat - affected zone hardness
c. slow down the cooling rate.
d. reduce the tendency of producing martensite in heat - affected zone
e. all of the above
2. All but which of the following will result in the elimination or reduction of residual
stresses
a. vibratory stress relief

b. external restraint
c. thermal stress relief
d. peening
e. post weld heat treatment
3. A problem occurring in weldment caused by the non uniform heating produced by

the welding operation is:
a. porosity
b. incomplete fusion
c. distortion
d. slag inclusion
e. none of the above
4. Which of the following changes will warrant the addition of or increase in the required
preheat?
a. decreased the carbon equivalent

b, increased the carbon equivalent
c. increased base metal metal thickness
d. both a and c
e. both b and c
5. What heat treatment is characterized by holding the part at the austenising temperature
for some time and then cooling on the furnace?
a. normalizing
b. quenching
c. annealing
d. tempering
e. stress relief
6, What heat treatment is a characteristic by holding the part at the austenising
temperature for some time and cooling in still air?
a. normalizing
b. quenching
c. annealing
d. tempering
e. stress relief
7. Increasing the heat input:
a. decrease the cooling rate and increases the like hood of cracking problems
b. decreases the cooling rate and decreases the like hood of craclung problems
c. increases the cooling rate and increases the like hood of cracking problems
d. increases the cooling rate and decreases the like hood of cracking problems
8. Increasing preheat will:
a. decreases the cooling rate and increases the like hood of cracking problems
b. decreases the cooling rate and decreases the llke hood of cracking problems
c. increasing the cooling rate and increases the like hood of craclung problems
d. increases the cooling rate and decreases the like hood of craclung problems
e. none of the above.
9. Increasing the carbon content:
a. decreases the like hood of cracking problems

b. increases the like hood of cracking problems
c. has nothing to do with the like hood of cracking problems
d. all of the above
16. Which of the following is not considered a type of metal transfer for MIG/MAG?
a. short circuiting
b. spray
c. globular
d. droplet
e. pulsed arc
17. Which of the following types of metal transfer in MIGIMAG is considered to be

the lowest energy, and therefore prone to incomplete fusion?
a. short circuiting
b. spray
c. globular
d. droplet
e. pulsed arc
18. When welding aluminium with the TIG process, what type of welding current is
most commonly used?
a. dcep
b. dcen
C. ac
d. both a and c above
e. both b and c above
19. Solidification cracking due to improper width - to - depth ratio of the weld nugget
may be a problem with which welding process?
a. OFW
b. Stud welding
c. SAW
d. All of the above
20. What gases can be used for GMAW?
a. carbon dioxide
b. argon
c. 75% argon - 25%carbon dioxide
d. 98% argon- 2 % oxygen
e. all of the above
2 1. Of the following, which is commonly caused by the presence of hydrogen in a
crack susceptible microstructure subjected to applied stress?
a. lamellar tearing
b. delamination
c. porosity
d. delayed cracking
22. Which of the following discontinuities is least likely to be detected visually?
a. toe crack
b. undercut
c. lamellar tear
d. overlap
23. Underbead cracks can result from which of the following welding practices?
a. use of wet electrodes

b. welding on contaminated steels
c. welding over paint
d. all of the above
24. What base metal discontinuity, located at the weld toe, is caused by the welder
traveling too rapidly
a. underfill
b. undercut
c. incomplete fusion
d. overlap
25. Of the following, which weld discontinuity shows up as a light region on a radiograph?
a. porosity
b. incomplete joint penetration
c. a and b above
d. tungsten inclusion
26. A problem occurring in weldment caused by the nonuniform heating produced by
the welding operation is:
a. porosity
b. incomplete fusion
c. distortion
d. sIag inclusion
27. All but which of the following will result in the elimination or reduction of residual
stresses
a. vibratory stress relief

b external restraint
c thermal stress relief
d peening
e. post weld heat treatment
28. Rapid cooling of a steel fiom the austenite range results in a hard, brittle structure
known as:
a. pearlite
b. carbide
c. cementite
d. bainite
e. martensite
29. Which of the following results in the softest structure for steel ?
a. annealing
b. normalizing
c. quenching
d. tempering
e. stress relief
30. The type of testing that is routinely for the qualification of welding procedures and
welders is :
a. tensile strength
b. hardness
c. soundness
d, impact strength
e. all of the above
TWI
Lzi?~~ THE WELDING INSTITUTE

Name: .......................................................
1. The likelihood of a brittle fracture in steels will increase with:

a. The formation of a fine grain structure.
b. A reduction in-service temperature to sub-zero conditions.
c. A slow cooling rate.
2. Hydrogen cracking in HAZ is niost likely to occur when welding:

a. Carbon manganese steels.
b. Austenitic stainless steel.
c. Micro alloyed steel (HSLA).
d. Low carbon steel.
3. Which of the following are considerations for the selection of a preheat

temperature:
a. Carbon equivalent, joint design, welding process type and plate material
quality.
b. All Joints over 25 mm thick, hydrogen levels, welding process, carbon
equivalent.
c. Arc energy, material thickness, hydrogen scale and carbon equivalent.
d. All of the above are considerations for the selection of a preheat
temperature.

TWI
lzi!uI THE WELDING INSTITUTE
4. Which of the following destructive tests would indicate the toughness value of
the weld metallparent metal and HAZ?
a. Macro.
b. Nick break.
c. Tensile.
d. Charpy Vee notch.
5. What constituent is needed in a coating of an electrode to prevent the
formation of porosity when welding rimming steel?
a. Iron powder.
b. Potassium silicate.
c. Silicon
d. Calcium carbonate.
6. Welds made with high heat inputs show a reduction in one of the following
properties?
a. Ductility.
b. Toughness.
c. Elongation.
d. Penetration.
7. Which of the following steel types would give rise to the formation of porosity
when autogenously welded with an arc welding process
a. Fully killed steel.
b. Semi killed steel.
c. Rimming steel.
d. Balanced steel.

TWI
lz2.!~~ THE WELDING INSTITUTE
8. Which of the following elements, which may be added to steel, has the
greatest affect on creep strength.
a. Tungsten.
b. Manganese.
c. Carbon.
d. Molybdenum.
9. The HAZ associated with a fusion weld:

a. Can not be avoided.
b. Usually has the highest tensile strength.
c. Is usually martensitic.
d. Both a and b.
10. What four criteria are necessary to produce hydrogen induced cold cracking?
a. Hydrogen, moisture, martensitic grain structure and heat.
b. Hydrogen, poor weld profiles, temperatures above 200°C and a slow
cooling rate.
c. Hydrogen, a grain structure susceptible to cracking, stress and a
temperature below 200°C.
d. Hydrogen, existing weld defects, stress and a grain structure
susceptible to cracking.
11. A carbon equivalent (CE) of 0.5%:

a. Is high for carbon manganese steel and may require a preheat over
10o0c
b. Is generally significant for carbon for manganese steels and is certainly
not to be taken into consideration for preheat temperatures.
c. Is high for carbon manganese steels and may require a preheat
temperature over 300°C as to avoid cracking
d. Is calculated from the heat input formula.

issue 4 Date: 1 7/03/05
TWI
lziTi!i/ THE WELDING INSTITUTE
12. In a martensitic grain structure what would you expect to increase?

a. Ductility.
b. Hardness.
c. Toughness.
13. In which of the following mechanical tests would you expect to use a
comparison from ductile to brittle transition curve.
a. Tensile test.
b. Charpy test.
c. Fusion zone test.
d. Alloftheabove
14. Which of the following heat treatments on steel cools down in air from the
austenite region?
b. Annealing.
c. Tempering.
d. Stress relieving.
15. What is the purpose of microscopic examination of a weld?

a. To determine the number and type of defects present.
b. To determine the grain size.
c. To determine the strength of the weld.
d. Both a and b.

TWI
lzi?I/ THE WELDING INSTITUTE
16. Which of the following units is a tensile specimen usually measured in? .,
a. Pounds per square inch.

b. Newton per square inches.
c. Joules.
d. Both a and b.
7. Assunling that ,the welding process, material thickness, carbon equivalent and
the welding paranieters to be the same, which of the following joint types
would normally require the highest preheat temperature.
a. Edge joint.
b. Lap joint.
c. Butt joint (single-V).
d. Tee joint (fillet welded).
18. Austenitic stainless steels are more susceptible to distortion when compared
to ferritic steels this is because:
a. High coefficient, low thermal conductivity.
b. High coefficient, high thermal conductivity.
c. Low coefficient, high thermal conductivity.
d. Low coefficient, low thermal conductivity,
19. Which of the following will most likely require the preheat temperature to be
increased?
a. An Increase in travel speed.
b. A reduction in material thickness
c. An increase in electrode diameter

TWI
lz2!ii/ THE WELDING INSTITUTE
20. Which of the following properties may be applicable to a carbon steel weld (CE
0.48) welded without preheat?
a. Narrow heat affected zone and hardness value in excess of 400 HV
b. Broad heat affected zone and hardness values in excess of 400 HV.
c. A very tough and narrow heat affected zone.
d. Narrow heat affected zone and low hardness values.
21. Which of the following materials is considered to be the easiest to weld?

a. Mild steel.
b. Medium carbon steels.
c. Martensitic stainless steel
d. Forging steel.
22. Which of the following test pieces taken from a charpy test on a carbon-
manganese steel weld, welded with a high heat input is most likely to have the
lowest toughness
a. Test piece taken from parent metal.
b. Test piece taken from weld metal.
c. Test piece taken from HAZ.
d. All of the above values will be the same.
23. Which of the following butt weld preparations would normally be considered for
a mechanised welding process
a. Single-V butt, root gap 2.5 mm (welded from on side only).
b. Double-V butt-welded both sides, root gap 2.0 nim.
c. Single-U butt with backing.
d. None of the above can be used for mechanised welding.
WIS 5 Qu paper MSR- WI-3

TWI
Lci!II THE WELDING INSTITUTE
24. Which is the correct heat input for the following parameters, amps 350, volts
32 and the travel speed 310 mmlminute (MMA welding process)?
a. 2.16 kJlmm.
b. 0.036 kJ1mm.
c. 2160 kJ1mm.
d. 3.6 kJlmm.
25. Assuming that the applicable specification makes no mention of arc strikes,
what would you expect to do as a welding inspector if arc strikes were found
on a component made of a high tensile strength material.
a. Have the welder re-qualified.
b. Ignore them.
c. Have the area checked for possible cracking.
d. Cut out the entire weld where the arc strikes exist.
26. A multi-pass MMA butt weld made on carbon steel consists of 5 passes
deposited using a 6mm diameter electrode. A 12-pass weld made on the same
joint deposited using a 4mm diameter electrode on the same material will
have:
a. A lower heat input and a higher degree of grain refinement.
b. A lower heat input and a coarse grain structure.
c. A lower amount of distortion and a higher degree of grain refinement.
d. A higher amount of distortion and a lower degree of grain refinement.
27. What is the purpose of a transverse tensile test?

a. To measure ultimate tensile strength.
b. To measure the elongation of a material
c. To measure the yield strength of a material
d. Alloftheabove.

TWI
WII THE WELDING INSTITUTE
28. Which of the following mechanical tests can be used to give a quantitative
measurement of weld zone ductility?
a. Tensile test.
b. Bend test.
c. Charpy V notch test.
d. Alloftheabove.
29. Which of the following are reasons for applying preheat?

a. The removal of residual stress.
b. To aid slow cooling and reduce the carbon content.
c. To reduce the chance of a brittle grain structure and to reduce the
chance of hydrogen entrapment.
d. Increase the ultimate tensile strength values and increase overall
weldability.
30. Which of the following are true with regards to a charpy test.
a. It's a static test used to determine a materials notch toughness in the
weld region.
b. It's a dynamic test used to determine a materials notch toughness in the
weld region.
c. It's a destructive test to give a measurement of through thickness
ductility.


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TWI

lz2!ii/ THE WELDING INSTITUTE

Welding Inspection, Steels - WIS 5

f What is the leg length of a fillet weld?

What is the throat thickness of a fillet weld (equal leg lengths)?

WIS 5 Qu paper MSR-WI-1

(5/ A duty not normally undertaken by a welding inspector is to:

7. What meant by the term crater pipe:

b. Another term given for a burn through.

WIS 5 Qu paper MSR-WI-1

8. What is meant by the term weld junction?

1Qc Which of the following is applicable for none planar defects?

WIS 5 Qu paper MSR-WI-1

14. Root concavity is caused by:

WIS 5 Qu paper MSR-WI- 1

t i Under most circumstances, which of the following do you consider to be duties

$8. Which of the following is most likely to cause a burn through

WIS 5 Qu paper MSR-WI- 1

b. The weld zone.

/ a. Lack of fusion at the toe of a weld.

2f Incomplete root penetration is most likely due to:

WIS 5 Q u paper MSR-WI-1

The material thickness reduces.

28. A welding inspectors main attributes include:

30. A code of practice for visual inspection should cover:

WIS 5 Qu paper MSR-WI- 1

Welding Inspection, Steels - WIS 5

Name: .... ....................... .... .. ...................

2. What is the effect of tempering after quenching

WIS 5 Qu paper MSR-AWI-1 05 issue5 Date: 10102/05

4. The toughness and yield strength of steel is reduced by:

c. Entrapped hydrogen, low toughness and high ductility.

WIS 5 Qu paper MSR-AWI-I 05 issue5 Date: 10/02/05

8. An MMA electrode classified as E7018 is:

P" What would be a typical appearance of a ductile fracture surface?

WIS 5 Qu paper MSR-AWI-1 05 issue5 Date: 10102105

/ . Which of the following is applicable for

a. Both hardness and width is increased.

fS.What is the main reason for the application of pre-heat

WIS 5 Qu paper MSR-AWI-1 05 issue5 Date: 10/02/05

t f i h h a t is the effect of full annealing compared to normalizing?

the following elements may cause cold shortness

the advantages of site radiography over ultrasonic inspection

WIS 5 Q u paper MSR-AWI-1 05 issue5 Date: 10/02/05

a. A product defect caused during the manufacturing of certain steels

of the following statement maybe considered correct when dealing with

I. Easy addition of additive

A - Statements 1 & 4 are correct

I 05 issue5 Date: 10/02/05

stairlless steel can be identified by:

.J Ultrasonic testing is preferable to radiographic testing due to:

WIS 5 Qu paper MSR-AWI-1 05 issue5 Date: 10/02/05

,-%a The heat affected zone of a carbon steel fusion weld

Pj"' . The main reason for toe

WIS 5 Qu paper MSR-Awl-I 05 issue5 Date: 10/02/05

Welding Inspection, Steels - WIS 5

Answer all questions

Flux cored wires may be advantages over solid wires because:

Movement of the arc by magnetic forces in an arc welding process is termed:

WIS 5 Qu paper MSR-WI-2