Master of VT Levels Mech
Master of VT Levels Mech
Master of VT Levels Mech
NAVANEETHAN
2011/Level-III
SUBS
1) A highly polished metal surface needs to be inspected 7) Black color may be considered as any color that highest
visually.An appropriate task lighting would be in
a) Diffuse Front illumination a) Hue
b) Dark field specular illumination b) Saturation
c) Diffuse rare illumination c) Value
d) Both a & b
8) The output of Radiographic film illuminator screen is
2) A lamp source S is known to provide an illumination of expressed in
600lx@ 1000mm at normal incidence. If a square plate of a) Luminous intensity units
side 500mm is placed with its center under this source,the b) Luminance units
illuminance at corner of plate is c) Iluminance units
a) 2180 lux d) Luminous Flux
b) 4000 lux
c) 2830 lux 9) The Most common area where erosion and cavitations in
d) 1110 lux a boiler feed water pump can be found
a) Near inlet of impeller vane.
3) Visual inspection of the surface of a weld for flaws is b) At Stuffing box
made possible, Bcoz light undergoes c) At journal/Sleeve bearing surfaces of shaft
a) Reflection d) Midway along the shaft.
b) Refraction
c) Diffraction
d) None of the above. 10) A failure at head-to-Shank fillet in a threaded fastener is
indicative of
4) The action of Photoelectric tube is explained by
a) Corpuscular Theory a) Tension failure
b) Huygen’s theory b) Shear Failure
c) Quantum Theory c) Shear break
d) Electromagnetic theory d) External Burst
5) Which of the following is Black body 11) A Bow of a pump shaft is best Checked by
a) Tungsten filament @3000° K a) Placing it on a precise V-block
b) A coiled tungsten filament @3000° K b) Mounting the shaft in the original machining
c) Both a & b centers
d) None of the above c) Preparing new centres and loading it between the
head stock and tailstock of long-bed lathe
6) As the distance of inspection is increased, the resolving d) Any convention manner taking in to account the
power of human eye existing facility.
a) Increases
b) Decreases 12) A loose-fit between stem to disk connections in a Globe
c) Same valve can lead to
d) None of the Above. a) Erratic operation
b) Excessive noise
c) Accelerated wear of seat
d) All the above
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
13) For a New Tubular part, used in Oil field type of 18) A high performance video system has the following
Inspection to be carried out specifications. Calculate the Resolution
14) The evaluation of test lamp against an un calibrated 19) Compare to Fibrescope, Which is not an advantage of
Light source is called Videoscope
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
23) “Red Mud” or “ Cocoa” , these terms associates with 29) Major & Minor load available in
a) Adhesive wear a) Brinell Hardness test
b) Fretting wear b) Vickers Hardness test
c) Ceramics c) Rockwell Hardness test
d) Moulded Material d) Knoop hardness test
e) Poldi Hardness test
24) While in-service, PT was Carried out on a Case hardened
roller surface reveals persistent indications.This is a 30) In SMAW Welding Process an excessive heat input is
pointer to determined during a welding procedure,Which of the
a) Adhesive wear following would result if Heat Input will be reduced?
b) Brittle Fracture
c) Hydrogen induced Crack a) Drop in Current
d) Sub-case Fatigue b) Drop in Voltage
c) Increase in Travel speed
25) A handheld magnifier has a focal length of 5 Cm. The d) Change from weave to Stringer bead Technique
Magnification is e) All the Above
a) 50
b) 500
c) 2 31) Identify the device, that works on the principle that
d) 5 change in resistance of the cell can be detected
a) Photo-emissive cell
26) Magnification Increases,
a) The resolving power, FOV and DOF increases b) CCD
b) The Resolving Power improves, FOV,DOF of field c) Photo-conducive cell
increases d) Photo-voltaic Cell.
c) The resolving power improves, FOV and Depth of
Field decrease.
d) None of the Above. 32) HARDENABILITY is a function of
a) Carbon content
27) Depth of Focus of Borescope varies
b) The ease with which Martensite forms
a) Directly proportional with aperture size
b) Directly proportional with FOV c) Chromium depletion
c) Inversely with Magnification d) None of the above
d) Both of A & B of Above
33) Anodizing of Aluminum will have the non standard
28) For a Concave Fillet Weld, Which Throat Dimensions are effect of
Equal?
a) Effective & Theoretical a) Dross surface
b) Effective & Actual
c) Actual & Theoretical b) Thinning of surface by 5 to 100 mm
d) All the Above
c) Accumulating of aluminum
d) Dissolving of aluminum
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
34) The instrument used to compare the surface a) High magnification, high depth of field,
roughness is
low resolving power
a) Profile gauge
b) High magnification, large field of view,
b) Reflecto meter
high resolving power
c) Surface comparator
c) Low magnification, narrow field of view,
b) Heat bonding 39) Out of the films given below, which one is the
fastest film? (Films are in ASA values)
c) Gas welding
b) 100 ASA
c) Coating a) 80grit
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
d) All of the above 46) Cold Tip illumination in to the term used in the
instrument
42) Input received by the CCD is stored as
a) which will illuminate the tip without heating
a) Photon
b) Used in fiber optic scope for illumination
b) Electron
c) The illumination is intrinsically safe
c) Pixel
d) The a color temperature of 6000ºC to 7000ºC
d) Digital Image
47) The three important properties of color are
43) The vision in the day light perceived by the cone located
a) Contrast, wave length, hue
in the central source by
b) Purity, hue, Contrast
a) Scotopic
c) Brightness, saturation, Hue
b) Photopic
d) Brightness, temp, hue
c) Near vision
48) In a semiautomatic visual inspection setting, there is a
d) Meospic camera, illumination lighting, background lighting ,
object and the camera , T.V monitor task lighting,
44) While doing visual inspection due to a background lighting are all arranged in an angle position
to each other. The image gives excessive glare on tube.
high sensitivity, the pattern should be
Which method will be suitable way to reduce the glare
a) Scan – Stop technique and looking a specific
of TV Monitors?
defect
a) Reduce the background lighting
b) Continuous scan slowly and for specific and
general discontinuity b) Increase the illuminating lighting
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
50) Failure of material in service exposure to stress at 54) The acceptance criteria of a sampling will be found
elevated temperature in due to in
a) Fatigue a) In the specification and procedures
d) Low magnification, large field of view, low 56) Technique or science is comparing & studying the
resolving power structure of metal is:
a) Fluidity b) Metallography
b) Void c) Photoconduction
d) Cracks
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
58) How many Duplicate replicas requires in replication 62) Mention a BASIC JOINT of Weld configuration
a) 1 a) Single- V
b) 2 b) Single –U
c) 3 c) Single – J
59) Mention the Surface Highlighting Technique for a crack 63) A Convex fillet weld of size 6mm is welded instead of
consistent with Impact damage on the surface of a 3mm.If the convexity is ignored, the unnecessary
Composite material? percentage increase in filler metal consumption is
d) Snubber d) 400
e) None of the above 64) Penetrants are classified by the method used to remove
the excess penetrant from the part. The four methods are
60) The image formation in eye is by iris and retina listed below:
blue this image formed by
a) Method A - Water Washable
a) Receives converted
b) Method B - Post Emulsifiable, Lipophilic
b) Blues
c) Method C - Solvent Removable
c) Photo Cathode
d) Method D - Post Emulsifiable, Hydrophilic
d) CRT exciter
e) All the above are four methods
61) In general, the cause of underbead cracking in steel
weldments is largely due to 65) In a Square Groove Weld Butt Joint
a) Preheating the weldments prior to welding a) Joint & Root Penetration both are equal
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
66) Effect of Root opening on Transverse Shrinkage in Butt 70) Out of speed ,frequency and wavelength of light,name
welds the parameter which remains same on reflection
67) For Concave Fillet weld the size of weld is 71) In a visual inspection area of greater Luminance is 100
Cd/m2, The Luminance contrast is
a) Equal to Leg
a) 0.25
b) Larger than leg
b) 0.20
c) Smaller than leg
c) 2.50
d) No related to leg
d) 2.0
68) To avoid inspector eye fatigue and to enhance the
probability of detection due to size, the maximum 72) The lighting to be used in Vision acuity test is
recommended luminance ratio between tasks and
adjacent lighter surroundings is a) Fluorescent
a) 3:1 b) Incandescent
b) 1:3 c) Mercury
69) The vision provides ability to distinguish the depth a) Incident angle
between object is
b) Visual angle
a) Near vision
c) Refractive angle
b) Far vision
d) None of the above
c) Stereoscopic vision
74) The Magnification of a Compound microscope
d) None of the Above
a) M = Mo + Me
b) M = Mo x Me
c) M = Mo x (1 + Me)
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
75) A Wide FOV (Field of view )produces 79) Black colour may be considered as any colour that is
highest in
a) High magnification and shorter DOF
a) Hue
b) High magnification and greater DOF
b) Saturation
c) Low magnification and Greater DOF
c) Value
d) Low magnification and Shorter DOF
d) All the above
78) The output of a radiographic film illuminator screen is b) Be capable of reading standard J-1 letter on
expressed in standard Jaeger test charts for near distance
acuity
a) Luminous intensity
c) Be capable of reading standard J-1 letter on
b) Luminance standard Jaeger test charts for Far distance
acuity
c) Illuminance
d) All the above
d) Luminous Flux
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
82) Which type of camera would be preferred choice for 87) What term is used to determine acuity measurements
operation within high radiation environment.? with a moving target?
a) Direct ,Remote, Translusecent 90) Which of the following most closely a grey body by
exhibiting very nearly uniform emissvity?
b) Robotic, Steroscopic
a) Electric arc from TIG gun
c) Microscopic, Telescopic test b) A carbon filament in the visible region
c) Tungsten filament
d) Both B & C d) Xenon short arc search light
85) What is the maximum angle from normal for acrrying out
visual inspection? 91) Which of the following laws state that light flux striking
a) 30 degrees a surface at angles other than normal is
b) 45 degrees distributed over a greater area?
c) 60 degrees
d) 80 degrees a) Lambert cosine law
b) Inverse square law
86) As the human eye becomes older which region of c) Cosine cubed law
wavelength becomes increasingly more absorbed? d) Boyles law
a) Blue
b) Green
c) Yellow
d) Red
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
a) E = (I cos3°) / a 2
10) VT-1 : Condition of a Component
b) E = I / d2
c) E = (I / d2) cos ° VT-2 : Location of evidence of Leakage
d) E = (I2 / d) cos
VT-3 : Genral Mechanical and Structural
Condition of Supports.
5) Magnification Increases Working Distance reduces and 14) Resolving Power: The quantitative ability of a person to
Resolving Power Increases. resolve objects is determined in a practical manner from
distance of the object to eye and angle of separation of two
6) Wide FOV gives Reduced Magnification and Increased points that can be resolved by eye .
Depth of Field.
15) For the Average eye,the minimal resolvable angular
7) Accuracy is twice the time of resolution separation of two points on an object is about 1 minute of
arc 1/60th of 1°
8) Additve Colors : Green,Red,Blue
16) This means about 12” (300mm)from test surface, the best
SubtractiveColors :Magentha,Cyan,Yellow resolution to be expected is 0.0035”(0.09mm)At 24”
(600mm) resolution 0.007”(0.18mm)
9) Linear Magnification is proportionally Changes with
Working Distance and inversely proportional to Objective Direct Visual test are best performed at a distance of
distance.
10-24”(250-600)
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
19) A person is said to be truly color blind when he cannot c) Fatigue and cause cannot be determined
distinguish red and green
d) Fatigue and cause can be determined
20) The lens of the eye focuses Each wavelength at different
4) Size of unequal fillet wed leg length is
depth of focus in retina.
a) The sum of two unequal legs ( a + b )
1) How do you discriminate CREEP from FATIGUE d) The shortest distance between root to face.
Failure?
2) The best way to evaluate creep fracture is 6) The COLD TIP LIGHT is
b) Replication and Electron microscope b) Light transmitted through a fiber optic cable
analysis system to tip of the borescope .
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
7) The grit which procedures fine surface finish is 11) A Black body is
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
15) Prolonged exposure to high frequency visible light, 19) The Near Vision acuity can be assessed by
causes a thermal hazard is called as
a) Jaeger chart
a) Hyperthermia
b) Reduced 20/20 snellien
b) Thermal shock
c) Ortho-rater chart
c) Blue Hazard
d) All the above
d) All the above
20) The color vision can be assessed by
16) When a primary color is confused for another
primary color, this error is known as a) Pseudoiso-chromatic chart
18) The CORNEA provides refractive ability about 22) The 20 /20 Snellen Vision test is usually performed at
c) 25 ft-Cd
d) B & C
May. 3, 11,Siegen-Germany
VISUAL TEST LEVEL-III Rev-1 SHANMUGA
NAVANEETHAN
2011/Level-III
SUBS
24) The Aspect-ratio of raster Scan is 28) A device uses synchronized pulses of high intensity
light to permit viewing of objects moving with a rapid
a) 2/3 periodic motion is called as
b) 3/2 a) Radioscope
c) 4/3 b) Stroboscope
d) 3/4 c) Bioscope
a) 100ASA
b) 200 ASA
c) 400 ASA
d) 800 ASA
May. 3, 11,Siegen-Germany