321.18.CR.0 NC Electrical Power Engineering 2018
321.18.CR.0 NC Electrical Power Engineering 2018
321.18.CR.0 NC Electrical Power Engineering 2018
ZIMBABWE
2018
NATIONAL CERTIFICATE
IN
PREAMBLE
The course is designed to develop an artisan with knowledge, skills and attitudes to competently practice
Electrical Power Engineering in the Electrical industry. The total duration of the course is 1358 notional
hours spread over a period of two (2) years and one (1) year On- the- Job Education and Training (OJET).
The minimum entry requirements into this course are English Language and Mathematics passed at
Ordinary Level with grade C or better and any other three subjects or National Foundation Certificate
(NFC) subjects or equivalent. The course is offered on a full time, part time, Block release or Open
Distance e-Learning (ODeL) basis. Assessment is through field based assignments, continuous
assessment, written examination and On- the- Job Education and Training (OJET). The course will
consider gender mainstreaming, sustainable development, physical challenges, health dispositions, and
the intersections between race, class and culture. It shall embrace innovative heritage-based
education and training philosophy to solve national problems and to produce goods and services
for industrialization and modernization.
CONSULTATION YEAR
2.0 AIM
The aim of the course is to produce an Electrical Engineering Mechanic with knowledge,
skills and attitudes to satisfy the needs of the Electrical Engineering Industry.
3.0 OBJECTIVES
3.1 apply electrical techniques in the plant, installation and maintenance equipment.
3.3 apply electrical and electronic concepts in electrical power engineering related
problems
3.8 enable students to acquire and use engineering drawing skills as a means of
accurately and clearly communicating ideas, information and instructions.
3.9 acquire business concepts to apply in the electrical power engineering field.
3.10 relate with the nation by being patriotic and participating in national development.
4.0 STRUCTURE
5.0 DURATION
The course duration is 1368 notional hours spread over two (2) years and one (1) year On -the
Job Education and Training (OJET).
English Language and Mathematics passed at Ordinary Level with grade C or better and any
other three Ordinary Level subjects or relevant National Foundation Certificate subjects.
8.0 ASSESSMENT
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
321/18/S09
0% to 49% - Fail
50% to 59% - Pass
60% to 79% - Credit
80% and above - Distinction
10.1 A candidate should attend at least 85% of learning sessions to qualify for
examinations.
10.2 The final mark should be obtained through aggregation provided the candidate
scores at least 40 % in each of continuous assessment and examinations.
11.0 RE-WRITES
11.2 Candidates should pass at least two thirds of the course to qualify for a
referral.
11.3 Any candidate who fails to pass at least two thirds of the course should repeat the
whole course, including the subjects they would have passed.
12.0 EXEMPTIONS
12.1 Exemptions are only granted in subjects already attained from a completed
accredited qualification provided an exemption certificate specifying subjects of
exemption is produced.
12.2 Exemption Certificate should be applied for at enrolment and produced before
registration for examinations.
13.1 Cheating in examinations will result in disqualification from the whole course and
all other HEXCO courses. The candidate will be suspended for two years.
14.0. RESOURCES
The following are the minimum equipment requirements for the course per class.
Filling
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
Hacksaws
Drilling machines
Center punches
Dies and Tapes
Ladder.
Bearing puller.
Chain block.
Megger
Wiring (Panel)
Side cutters
Pliers multimeters
Screw drivers
Spanners
Tool boxes
Knives
Wiring House
Conduit benders
Hammers
Spirit levels
Plum bobs
Contractors
Ammeters
Voltmeters
Tachometers
Trequenas meters
Multimeter
Kits
STRUCTURE
CODE : 321/18/S01
1.0 AIM
The aim of the subject is to provide the student with knowledge and skills of the Installation,
Maintenance and Repair of electrical plant and equipment observing SHEQ procedures.
2.0 OBJECTIVES
3.2 analyse and explain installation, protection, advantages and disadvantages of three-phase
distribution systems (plant and equipment)
3.3 install electrical power cables according to Standards Association of Zimbabwe (SAZ)
and Institute of Electrical Engineers (IEE) Wiring Regulations.
3.5 apply SAZ & IEE Wiring Regulations and Code of Practice in the installation and
maintenance of electrical equipment in special/hazardous areas.
3.6 install lighting systems in accordance to SAZ and IEE Wiring Regulations.
3.8 describe the construction, operation and application of three-phase Alternating Current
(AC) motors and generators.
3.9 describe the construction, operation and application of direct current (DC) machines.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
3.0 TOPICS
4.0 CONTENT
1.1 Explain how electrical energy is generated in the following generating stations:
- coal fired
- oil fired
- nuclear
- hydro-powered
- geo-thermal
- solar
- wind
- biomass
1.2 State the advantages and disadvantages of the above generating systems.
1.3 Name the power stations found in Zimbabwe and state typical power ratings and
generating voltages.
1.3.1 TRANSMISSION
- voltage drop
- power loss
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
c) Explain with the aid of a sketch the purpose of the supernational grid
interconnection of Zimbabwean Grid to neighbouring countries.
2.1 Draw line diagrams for the ring main distribution systems and radial main
distribution systems including control and switching systems and compare the two
systems.
2.2 Draw line diagrams to show connected load for the following systems and typical
applications.
- direct laying
- solid laying
- draw in method
- H. V. switchgear, isolator
- Transformer
- Low voltage switchgear, isolators
- Bus-bar chamber
- Distribution boards
4.3 Apply relevant IEE, CAS, and SAZ regulations pertaining to substation
enclosures or buildings.
5.1 Describe and illustrate with the aid of schematic diagrams and, wiring diagrams
the following switchgear:
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
- High voltage switchgear: air blast circuit breaker, oil, sulphur hexa-
flouride (SF6), vacuum.
5.2 Describe, illustrate and state advantages and disadvantages of the following
excess current protection devices.
- Rewirable
- Catridge
- High breaking capacity (HBC)
5.3 Identify and apply relevant regulations of the above circuit protection devices.
- Service cable
- Service mcb (cut-out)
- Meter
- Main switch
- Distribution board indicating final circuits.
6.4 Explain, supply and metering a tariffs for electrical consumers to include
domestic, commercial and industrial purposes:
- Load limiter
- Two-part
- Maximum demand
- Block tariff
- Off-peak
- Pre-paid
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
6.5 Illustrate and explain the connection of power factor correction devices.
- Bank/group capacitors
- Synchronous motor
- Phase advancers
CABLES
8.1 Describe giving examples methods of protection against direct and indirect
contact to include:
- Use of barriers
- Placing out of reach
- Insulation, double insulation
- Use of extra-low voltage
- Isolation transformers
- Earthing
- Earthing
- Exposed conductive parts
- Extraneous conductive part
- Bonding conductors
- Circuit protective conductors
- Earth electrode
- Earth electrode resistance area
- TT
- TN-C-S
- TN-C
- TN-S
- ZONE O
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
- ZONE 1
- ZONE 2
9.3 Describe basic fire alarm systems stating advantages, disadvantages and
applications:
- Open circuit
- Closed circuit
9.4 Describe the operation and application of the following emergency supply
systems:
- Generator
- Battery
- Uninterruptible power supply
9.5 Describe the operation and application of emergency lighting systems stating
advantages and disadvantages of:
- Maintained
- Non-maintained
a) Corrosion
b) Erosion
c) Fire hazards
d) Damage by flora and fauna
e) Danger to fauna and workers
9.8 Show the steps taken in the design procedures of a photo-voltaic system, to
include the following:
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
- Load assessment
- Availability of solar resource
- Size of battery including types of batteries used.
- Size of module, etc
4.10 ILLUMINATION
- Light
- Luminous flux
- Luminous intensity
- Illumination/ illuminance
- Glare
10.2 Use inverse square law and cosine law to calculate illuminance.
10.3 Describe construction and operation with aid of diagrams of the following
lamps:
10.5 Define stroboscopic effect and describe the methods of minimizing stroboscopic
effect, i.e.
- Lead-lag circuit
- Mixture of discharge incandescent
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
10.6 Determine the number and positioning of luminaries for a given installation.
- Winding temperature
- Oil temperature
- Buchholtz relay
- Induction over current relay
- Lighting protection (surge arrestor, arcing horns, reactor).
- Air
- Forced air
- Water
11.4 Explain transformer oil condition tests to include:
4.12 A. C. MACHINES
12.1 Describe construction operation and application of three phase a.c. induction
motor in respect of:
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
- Rotor types: Squirrel cage, Double cage and Wound rotor type.
- Frame types and sizes: open type, drip proof, totally enclosed, pipe/duct
ventilated and screen protected.
12.2 Perform calculations using synchronous speed, rotor speed and slip speed.
12.3 Describe the operation, characteristic curve and application of the following
single phase machines.
- Universal motor
- Split phase motor
- Capacitor start
- Capacitor-start capacitor-run
- Shaded pole
12.4 State advantages, disadvantages and application of the following motor starting
methods:
- Director on line
- Star-delta
- Auto-transformer
- Rotor resistance
- Soft starters including programmable logic controllers.
- Reactance starter.
- Pole changing
- Rotor resistance
- Electronic drives
12.6 Draw up a planned maintenance scheme for various types of motors and
switchgear.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
12.7 Describe common faults and remedies associated with a.c. motors and
switchgear.
12.10 Describe the construction and the following starting methods of a synchronous
motor.
- Pony motor
- induction starting.
12.11 Applications of synchronous motors
4.13 D. C. MACHINES
- Yoke
- Poles and interpoles, commutation poles.
13.2 Explain with simple diagrams methods of installation and alignment of shafts and
couplings.
13.3 Identify common faults and provide remedies for D.C. generators.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
13.4 Describe the construction, operation and application of d. c. motors including the
following:
- Series
- Shunt
- Compound: short shunt and long shunt
13.5 Describe with aid of diagrams the various methods of starting and speed control
of d.c. motors:
- Field rheostat
- Face-plate
- Electronic drives
13.6 Identify and apply relevant safety measures and regulations pertaining to various
motors.
SPECIAL INSTALLATIONS 10
ILLUMINATION 10
TRANSFORMER PROTECTION 10
D.C. MACHINES 10
TOTAL 100%
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
1.0. AIM
The aim of the subject is to provide the student with knowledge and skills of the
Installation, Maintenance and Repair of electrical plant and equipment observing SHEQ
procedures.
2.0 OBJECTIVES
3.1 demonstrate knowledge of the factors relating to industrial safety and the
requirements of safety standards.
3.2 demonstrate the proper selection, use and care of all tools and materials
commonly used by electrical craft tradesman.
3.3 demonstrate use of tools, procedures and standards involved in installation and
joining of cables.
3.4 carry out various projects using cable enclosures and various accessories
involved.
3.5 demonstrate the ability to use common materials and tools to perform electrical
installations to acceptable standards in accordance to IEE – regulations and SAZ.
3.6 perform the installation, repair and maintenance of electrical machines and their
control circuits.
3.8 install and maintain discharge lamps according to IEE and CAZ regulations
requirements.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
3.9 install, repair and service domestic and industrial heating appliances.
3.11 Demonstrate the ability to develop & run a program using PLC’s
3.0. TOPICS
4.0 CONTENT
Demonstrate the proper selection, use and care of personal protective gear to
include:
4.1.5 Headgear
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.1.6 Gloves
4.1.11 Respirator/mask
4.1.13 Identify materials common to the electrical industry which can be hazardous to
the workers’ health:
4.1.4 Solvents
Give illustrated examples of conditions under which electric shock would occur.
4.1.19 Explain and demonstrate the procedures to be used in the event of an accident to
include:
4.7.1 Demonstrate the ability to terminate armoured cables using glands, shrouds etc.
4.7.3 Identify and apply IEE regulations relevant to the usage of the above cable
regarding:
- Radius of bends
- Frequency of support
- Sizes of conductors
- Colour coding of conductors
- Earthing requirements
4.7.4 State the advantages and disadvantages of the various cable type and factors that
determine their selection.
- Soldered joints
- Crimpled joints
- Mechanical joints to include Married joint, Tee joint and Britania.
4.7.6 Demonstrate the ability to solder using soldering iron and flux.
4.7.7 State relevant IEE regulations pertaining to the above joining processes.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.7.8 Demonstrate the ability to terminate single core cable in the socket outlets lighting
points etc. using cable eyes, lags and block connectors.
4.8.1 Describe the installation of steel conduit under the following headings:
- Bends
- Cutting and threading
- Cleaning of burns
- Running couplings
- Tee joints, outlet boxes, junction boxes.
- Accessories e.g. couplings, bushes, lock nuts, glands, flexible conduit, etc.
4.8.3 Demonstrate the ability to use plump line and level to achieve straightness in an
installation.
4.8.5 Demonstrate the ability to install PVC conduct using appropriate accessories and
tools.
4.8.7 Demonstrate the ability to carry out to accepted standards various projects using
trunking, bus-bars, cable trays and their associated fittings and tools.
4.8.8 Identify all IEE and SAZ regulations relevant to the above system.
4.9.1 Construct:
- One-way switching
- Two-way switching
- Two-way and intermediate switching.
- Time switch
- Dimmer switch
- Photo electric switch
4.9.2 Prepare a circuit schematic diagram, materials list, tools list and wiring diagram
for the circuit above.
4.9.3 Implement all the IEE and SAZ regulations relevant to the above installation.
4.9.4 Modify the installation 1.2.1 to include an intermediate switch and an additional
switching position.
4.9.5 Test the above circuit for earthing, insulation resistance and circuit continuity
(inspection, testing and commissioning).
4.9.7 Construct a four-socket outlet radial circuit according to IEE and SAZ
regulations.
4.9.8 Construct four socket outlets in ring circuit in accordance with IEE and SAZ
regulations.
4.9.9 Wire a supply board complete with circuit breakers, neutral bar, energy
meter main earthing terminal and neutral link.
4.9.10 Prepare a circuit diagram, tools and material list for the above installation.
4.9.11 Demonstrate knowledge of all relevant IEE and SAZ regulations to the above
installation.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.9.13 Prepare the circuit diagrams and wiring diagrams for the project and make
up materials and tools list required to complete the task.
4.9.14 State and explain the advantages of using an extra low voltage to operate a low
voltage system.
4.9.15 Display knowledge of proper use of instruments and procedures to locate faults
put into the circuit by the instructor.
4.9.16 Modify the circuit to convert this system to normally open alarm circuit.
4.9.17 Display knowledge of all IEE and SAZ regulations relevant to the above
installation.
4.9.18 Construct a full house installation using a variety of installation methods and
materials to include:
4.9.19 Prepare material list, tools list, schematic and wiring diagrams for the circuit
before it is commenced.
4.9.20 Identify all IEE and SAZ relevant to the above project.
4.9.21 Do visual inspection on all circuits wired.
4.9.22 Test the installation for polarity, earthing, insulation resistance, circuit continuity
using appropriate instruments.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
3.6.2 Identify BS3939 symbols and state the meaning of each symbol.
3.6.5 Interpret all relevant information from given block and schematic diagrams.
4.14.2 Construct a sequential starting system using three-phase motor interlocks and
timers to start more than one motor sequentially, using a variety of materials.
- Draw a schematic and wiring diagram of the circuit and demonstrate the
following motor switching arrangements:
a) Mercury
b) Float
c) Limit
d) Magnetic
e) Proximity
f) Contacts/relays
4.14.3 Identify safety problems associated with automatic starting circuits and means to
overcome them.
4.14.4 State an alarm circuit must be incorporated to warn of the impending start of the
remotely controlled motor as a sequential starting system.
4.14.7 Connect a wound rotor three-phase motor to a variable resistance type of motor
starter.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.12.1 Examine the constructional details of the different types of secondary cells and
identity the various parts.
4.16.1 Connect a single fluorescent lighting circuit correctly as per schematic diagram.
- Explain with the aid of a neat-labeled sketch the function of the starter,
choke and capacitor in the circuit.
- Show the three operational positions of the starter switch with the aid of
the labeled diagram.
- Connect two fluorescent lights in parallel, correctly as per schematic
diagram in order to reduce stroboscopic effect.
CODE : 321/18/S03
1.0 AIM
The aim of the subject is to provide the student with knowledge and skills of the
Installation, Maintenance and Repair of electrical plant and equipment observing SHEQ
procedures.
2.0. OBJECTIVES
2.2 demonstrate the proper selection, use and care of all tools and apparatus common to
electrical craft tradesmen.
2.3 identify and select all materials and hardware common to electrical installation work.
2.5 construct and test circuits and apparatus common to electrical craft, consistent with
all relevant IEE Regulations.
DESIGN LEGTH
4.1 identify and list the tools, equipment and materials used.
4.2 interpret and apply relevant wiring rules and regulations as SAZ and IEE.
4.4 list, in logical sequence, the procedures to be taken when fault finding and/or
repairing electrical equipment and systems.
4.8 present a logical write-up based on the requirements as specified on the question
paper.
The examiners are advised to ensure that the project questions based on the
objectives are in line with the % mark allocation below. The total marks may be
up to 1000.
4 – 10% 5 – 5% 6 – 10%
SUBJECT : MATHEMATICS
CODE : 321/18/S04
1.0. AIM
To enable the student to identify, formulate, and solve typical electrical mathematical
engineering problems.
.
2.0 OBJECTIVES
3.1 perform basic arithmetic and algebra calculations at National Certificate standard.
3.3 define trigonometric functions, describe their properties and use them in
calculating some basic electrical engineering relationships.
3.4 define the base of a number and perform basic calculations in various number
systems.
3.7 define position and rotating vectors and illustrate their applications in electrical
engineering.
3.8 define a function and its derivative and use the derivatives to find extremes and
rates of change, applying the techniques to problems in electrical engineering.
3.9 define definite and indefinite integrals and perform basic integration with
applications, determination of areas under curves.
3.11 define work, power, energy and efficiency and perform relevant calculations in
electrical energy, heat energy, kinetic energy and potential energy.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
3.0. TOPICS
4.0 CONTENT
- The sides.
- Two angles and sides.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
- Inscribed
- Circumscribed
- Escribed
- Trammel methods
- Auxiliary circle method
- Rectangular method
- Approximate method
- Focal point method
4.2 ALGEBRA
4.2.1 Plot a graph of a linear function and determine the gradient and intercept.
- Elimination
- Substitution
- Graphical method
- Determinant
- Matrix
- �𝑦 = � 𝑎𝑥 2 + �𝑘
- 𝑦 = � 𝑎(𝑥 − ℎ)2 + �𝑘
4.2.6 Determine and classify turning points of a quadratic function from 4.2.1 to 4.2.5.
- Factorization
- Quadratic formula
- Completing the square
- Graphical method
4.2.10 State the difference between direct and inverse proportionality and solve related
problems including joint and partial variation.
- Hyperbola
- Ellipse
- Circle
4.2.8 Define the natural number and establish it as a base for natural logarithms.
4.4.3 Determine:
- Period
- Angular frequency
- Amplitude
- Phase angle of a sinusoidal function.
- 𝑆 = 𝑟𝜃
1 2
- 𝐴 = 2𝑟 𝜃
- 𝜃 = 𝜔𝑡
4.4.7 Determine trigonometrical ratios of any size of angle and associate them with the
four quadrants.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
- 𝑠𝑖𝑛2 𝑥 + � 𝑐𝑜𝑠2 𝑥 = 1
- 1 + 𝑡𝑎𝑛2 𝑥 = 𝑠𝑒𝑐2 𝑥
- 1 + 𝑐𝑜𝑡2 𝑥 = � 𝑐𝑜𝑠𝑒𝑐2 𝑥
- sin 𝜃 = 𝑘�(𝑤ℎ𝑒𝑟𝑒 − 1� ≤ 𝑘� ≤ 1)
- 𝑠𝑖𝑛2 𝜃 = 𝑘�(𝑤ℎ𝑒𝑟𝑒 − 1� ≤ 𝑘 ≤ 1)
- 𝑠𝑖𝑛2 𝜃� + sin 𝜃 + 𝐶 = 0�(𝑤ℎ𝑒𝑟𝑒�𝐶�𝑖𝑠�𝑎�𝑟𝑒𝑎𝑙�𝑛𝑢𝑚𝑏𝑒𝑟).
4.5.2 Determine the equation of tangent and normal at a given point on a curve.
𝑙𝑖𝑚 ∆𝑦
4.5.3 - Define ∆𝑥�→𝑂 ∆𝑥 and show that it is the gradient function of 𝑦 = 𝑓(𝑥).
4.5.4 Differentiate from first principles functions with powers of x up to x3, sin x,
cos x,1n x and ex.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.5.6 Differentiate:
- Function of a function
- Product
- Quotient
4.5.7 Determine and classify stationary points of a function using first and second
derivatives.
1
4.6.1 State indefinite integrals of functions such as 𝑎𝑥𝑛 , 𝑥 , sin 𝑛𝑥, cos 𝑥�𝑎𝑛𝑑�𝑒𝑥 .
1
- (1+𝑥)𝑛
where n= 1 or n= 2
- 𝑠𝑖𝑛(𝑎𝑥)
- 𝑠𝑖𝑛𝑥𝑐𝑜𝑠𝑥
- 𝑠𝑖𝑛2 𝑥𝑐𝑜𝑠𝑥
-�𝑠𝑖𝑛2 𝑥
- �𝑒 𝑎𝑥
- 𝑙𝑛𝑎𝑥
4.6.3 Determine the area under a curve.
4.6.4 Determine the mean and root mean square value of a sine wave.
4.7.2 Add, subtract, multiply and divide complex numbers in Cartesian form
(include powers and roots).
4.7.3 Represent complex numbers in cartesian form and polar form on an Argand
diagram.
4.7.6 Distinguish among free vector, position vector, unit vector and component vector.
- Triangular rule
- Parallelogram rule
- Polygon rule
4.8.1 Define:
-Displacement
-Velocity
-Acceleration
4.8.2 Construct the velocity/time graphs and apply them to solve problems associated
with linear motion.
4.8.3 Apply the following equations in solving problems associated with linear motion:
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
𝑣 = 𝑢 + 𝑎𝑡
1
𝑠 = 𝑢𝑡 + �𝑎𝑡 2
2
2 2
𝑣 − 𝑢 = 2𝑎𝑠
- ù = � ù0 + �á𝑡
1
- è = � 𝑤0 𝑡 + 2 �á𝑡 2
1
- ù2 − � ù0 = 2 áè
4.10.1 Define:
- Work done
- The Joule
4.10.6 Determine power required for rotation given torque and rotational speed.
- Power ratio
- Work ratio
4.10.11 State and describe the relationship between energy and work done.
- Kinetic
- Potential
- Heat
- Electrical
- Chemical
4.10.13 Apply the following formulae to calculate the following forms of energy:
- 𝑚𝑔ℎ - potential energy
1
- 2
�𝑚𝑣2 - kinetic energy.
- 𝑚𝑐∆è - heat gained d
- 𝑉𝐼𝑡 - electrical energy
Stroud, K.A. and Booth, D.J. (2013) Engineering Mathematics Prentice Hall
1.0. AIM
To enable the student to know and apply the fundamental principles of operation of
analogue and digital electronic systems
2.0 OBJECTIVES
3.1 select the right passive components appropriate for the particular application
3.2 explain doping and the effect of temperature and light on semiconductor materials
3.3 apply the pn junction as a rectifier diode, clipper/clamper zener regulator and opto
electronic devices
3.4 explain fault find and rectify repair BJT amplifier and switching circuits
3.5 explain, fault find and rectify repair FET amplifier and switching circuits.
3.0 TOPICS
4.0 CONTENT
4.1.1 State that Electronics is that branch of Electrical Engineering which deals with
design, manufacture, operation and application of devices that handle electrons.
4.2.1 RESISTORS
b) Variable Resistors
- Linear
- Logarithmic
c) Preset Resistors
4.2.2 CAPICITORS
- Fixed Capacitors
a) Paper
b) Mica
c) Ceramic
d) Polyester
d) Electrolytic
- Variable capacitors (i.e. air capacitors).
- Preset capacitors.
4.3.1 Explain capacitor specifications:
- Nominal values (use E12 series)
- Working voltage
- Tolerance
- Types of dielectrics
4.3.3 Describe the capacitor colour code and use it to determine the value of a
capacitor.
4.3.4 Describe the operation of the basic capacitor in DC and AC circuits (DC blocking,
AC bypass).
4.2.3 INDUCTORS
- Nominal value
- Frequency range
- Working current
4.5.1 State the basic materials used in Electronics, for example, conductors,
semiconductors and insulators. Give examples in each case.
4.5.2 Using Bohr’s model of the atom with its constituent particles (electrons, protons
and neutrons), explain the energy band theory.
- Valence band
- Conduction band
- Forbidden gap
4.5.3 Doping.
THE PN JUNCTION
4.6.5 Describe the effect temperature on both the reverse and forward currents of a
diode.
4.6.7 Sketch typical forward and reverse-bias static characteristics of a PN diode and
draw the test circuit to obtain them.
4.6.8 Effect of temperature on the static characteristic of a diode.
4.6.9 Explain:
- Power dissipation in a diode, Pd.
- Maximum forward voltage, VF max.
- Maximum forward current, IF max.
- Peak inverse voltage, PIV.
4.6.10 Draw the equivalent circuit and characteristic of:
- An ideal diode.
- A diode when assuming a constant forward voltage drop Vf.
- A diode when assuming a constant forward voltage drop and a constant
forward resistance R1.
4.6.11 Derive the equation and draw the d.c. load line for a PN junction
diode.
4.6.12 Define and show how to obtain:
- Static resistance 𝑅𝑑 .
- AC or dynamic resistance.
4.7.1 Perform simple calculations and sketch the current and voltage waveforms
for diode in DC and AC circuits.
4.7.3 Describe, with the aid of sketches, the operation of diode AC circuits:
- DC power supply block diagram.
- The half wave rectifier.
- The centre-tap full wave rectifier.
- The full-wave bridge rectifier.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.7.4 Draw the input and output waveforms for the rectifier circuits above, assuming
sinusoidal inputs and a purely resistive load.
4.7.5 Calculate, for the rectifier circuits in 4.11.3 above:
- The average voltage 𝑉𝑑𝑐 and average current 𝐼𝑑𝑐 .
- Root-mean-square voltage 𝑉𝑟𝑚𝑠 and root-mean square current 𝐼𝑟𝑚𝑠.
- Efficiency
4.7.6 Explain the need for filters in rectifier circuits.
4.7.7 Explain the operation of
- Capacitor filter.
- Choke filter.
- Choke-capacitor (LC) filter.
4.7.8 Define peak-to-peak ripple voltage 𝑉𝑟𝑝𝑝 and the ripple factor.
4.7.9 Perform simple DC output and ripple voltage calculations assuming linear
discharge and zero charge time.
4.7.10 Explain the effect of capacitor size on diode peak currents and
peak inverse voltage.
Clipping and clamping circuits:
- Simple series and parallel diode clippers.
- Biased series and parallel diode clippers.
- Partial clipping.
- Biased double diode clippers.
- Positive and negative clampers.
4.7.12 Voltage Multipliers.
- Half wave and full wave voltage doublers.
- Voltage trippler.
4.8.3 Draw the equivalent circuit and characteristics of the Zener diode assuming a
constant Zener voltage and a constant reverse resistance 𝑅𝑍.
4.8.4 Explain the operation of the Zener diode as a voltage stabilizer.
4.8.5 Perform simple calculations on zener diode voltage stabilizer circuits.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.11.1 State how large output current and voltage in a transistor circuit can be controlled
by a small input voltage; common emitter circuit with a resistive load and DC
supply.
- State the bias conditions for switching the transistor on and off.
- Describe the principle of operation of transistor switching circuits
incorporating the following components:
a) Phototransistor (include construction and principles of operation).
b) Photodiode.
c) Photoconductive cell.
d) Solar cell.
e) Thermistors.
- Fixed bias
- Self bias
- Potential-divider bias.
4.12.8 Derive the DC load line and draw it on to the output characteristics of an
amplifier (CEC).
4.12.9 Illustrate how the DC load line can be used to determine the operating point of an
amplifier.
4.12.10 Find the major BJT parameters from both characteristics and datasheet.
- 𝑃𝐷𝑚𝑎𝑥 .
- 𝑉𝐶𝐸𝑚𝑎𝑥
- 𝐼𝑐𝑚𝑎𝑥
- ℎ𝐹𝐸
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.12.11 Draw the maximum power dissipation curve (hyperbola) on output characteristics.
4.12.12 Determine the operating region of a transistor in a given circuit.
4.12.13 Explain the function of transistor amplifier components.
4.12.14 Explain the effect of variations in the supply voltage, leakage current and load
resistance on the quiescent point, DC stabilization.
4.12.15 Apply graphical method for the estimation of current, voltage and power gain in a
BJT (CEC); the small signal AC amplifier.
4.12.16 Explain signal distortion in an amplifier circuit.
4.13.4 State the three FET configurations, that is, CGC, CSC, CDC.
4.13.5 Draw basic circuits to illustrate the configurations in 4.13.4 above; circuit to show
proper bias voltages.
4.13.6 Draw the circuit from which the transfer and the output characteristics of a
JFET can be obtained.
4.13.7 Define JFET parameters and determine them from output and transfer
Characteristics:
𝑉𝐺𝑆 2 𝑉𝐺𝑆 2
𝐼𝐷 = 𝐼𝐷𝑆𝑆 (1 − 𝑉𝑃
) = 𝐼𝐷𝑆𝑆 (1 − � 𝑉 )
𝐺𝑆 (𝑂𝑓𝑓)
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.13.9 State that the product 𝑅𝐷 𝑔𝑚 . is known as the voltage amplification factor,
ì, of the FET, that is, ì = 𝑅𝐷 𝑔𝑚
4.13.10 Performs calculations on the FET using the relationship in 4.13.8 and
4.13.9 above.
4.14.1 a) Understand the construction and operation of both the depletion mode
and enhancement – mode MOSFETs (P channel and N channel).
a) Simple bias.
b) Fixed bias.
c) Source-self bias.
d) Drain-self bias.
e) Potential divider bias.
4.14.3 Determine quiescent voltages and currents for the FET amplifier circuits
in 4.14.2 above.
4.14.4 Draw the DC load line on the output characteristics of a FET and use it to
determine the operating point, Q.
4.14.5 Explain the purpose of the input resistance 𝑅𝑖𝑛 and the drain resistance
𝑅𝐷𝑆 .
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.14.1 Draw the circuit diagram to show how the FET can be used as a switch
(CSC). Explain the operation.
4.16.1 a) Draw the circuit diagram of a simple amplifier using a JFET in the
common-source mode.
4.16.2 Derive the formula for the voltage gain, 𝐴𝑣 , of an amplifier in the
common-source mode, that is, 𝐴𝑣 = −𝑔𝑚 𝑅𝑑
4.18.1 State the basic difference between discrete component circuits and
integrated circuits (ICs).
4.18.5 State that the operational amplifier basically amplifies the difference
between its input signals, that is, VO = A (V2 – V1).
- Input Resistance
- Output Resistance
- Open-Loop gain
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
- Bandwidth
- Offset voltage
- Bias current.
- Differential Mode gain 𝐴𝑑 .
- Common-Mode gain,𝐴𝑐 .
- Common Mode Rejection Ratio, CMRR.
- Input offset voltage.
- Output offset current.
4.19.2 Derive the expressions and perform simple calculations for the voltage gain
of an OP-AMP when connected as a:
- Voltage follower
- Inverting amplifier
- Non-inverting amplifier
- Summing amplifier
- Differential amplifier.
4.19.3 Explain the need for matching the resistances of the inverting and non-
inverting inputs of an OP-AMP.
4.19.4 State the practical applications of the amplifier circuits in 4.19.2 above.
4.19.5 Describe how the OP-AMP can be used as a comparator (the OP-AMP as
a switch).
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.20.1 a) Describe the construction and operation of the SCR: Use transistor-
pair analogy.
- Voltage ratings
- Current ratings
- Gate ratings
4.20.4 Describe single phase power control and burst control. Draw input and
output waveforms.
- Firing angle
- Average load voltage and current
- Average power
4.22.1 Describe the construction and operation of the UJT (including the formula
𝑉𝐸𝐵 = 𝑉𝑝𝑛 +ŋ𝑉𝐵𝐵
4.22.2 Draw the typical characteristic for the UJT.
4.22.3 Applications of the UJT:
- SCR triggering
- Relaxation oscillator: sketch waveforms to show the exponential charge
and discharge of the capacitor.
4.23.3 Explain triggering of SCR and TRIAC by phase-shift network and DIAC.
4.23.6 Compare the performances of the SCR and the TRIAC in phase control
applications.
INTRODUCTION
4.25.1 Explain the evolution of number system: base, symbols, counting sequence and
positional weights (including both integers and fractions).
4.25.2 Show the relationships between the number systems in 4.25.1 above.
- Addition/subtraction
- Multiplication/division
- Subtraction using the 1’s and 2’s compliments.
4.25.4 Codes: Define:
- AND
- OR
- NOT
- NAND
- NOR
- EX-OR
- EX-NOR
4.25.2 Realize logic gates using diodes and transistors (for AND, OR and NOT
gates).
4.25.3 Compare, TTL and CMOS logic families (speed, power, fan-in, fan-out,
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.24 BOOLEAN
4.26.1 Understand the relation between Boolean Mathematics and digital signals
(voltages) on wires.
- Boolean identities
- De Morgan’s theorems
4.26.4 Prove the identities and theorems in 4.26.3 above using truth tables.
4.26.5 Simplify Boolean expressions using the identities and theorem in 4.26.4
above.
4.26.6 Derive Boolean expressions from truth tables (Miniterms only) and logic
circuits.
4.27.1 Demonstrate that NAND or NOR gates may be used to replace any other
gate.
4.27.2 Transform a logic network to use only one type of logic gate (NAND or
NOR).
4.28.1 Construct K-maps of up to four variables from truth tables and Boolean
expressions.
method.
4.30.2 Explain the operation of Flip Flops (using NAND logic gates).
- SR FF
- D FF
- Clocked SR FF
- JK FF
- Master-slave JK FF (Block diagrams)
4.30.3 Draw truth tables and timing diagrams for the FFs in 4.30.2 above.
4.30.7 Describe circuits to drive LEDs and relays and to obtain input from
switches.
INTRODUCTION TO INTRODUCTION TO 15
ELECTRONICS ELECTRONICS
PASSIVE ELECTRONIC
COMPONENTS
CAPACITORS
INDUCTORS
BASIC ELECTRONIC
MATERIALS
DIODES, DIODES THE PN JUNCTION DIODE 15
APPLICATIONS APPLICATION OF THE
AND RECTIFIER DIODE
OPTOELECTRONIC THE ZENER DIODE
DEVICES OPTOELECTRONIC DEVICES
COMBINATIONAL LOGIC
SEQUENTIAL LOGIC
TOTAL 100%
1 Floyd T.L. (2014) Electronic Devices and Circuit Prentice Hall New Jersey
2 Floyd T.L. (2015) Digital fundamentals Prentice Hall New Jersey
3 Horowitz, P. (2015) The Art of Electronics 3rd Ed Cambridge University Press
4 Bimbhra P.S. (2012) Power Electronics Khanna
5 Lang J. (2016) Foundations of Analog and Digital Electronic Circuits Morgan Kaufmann
Publishers
6 Forrest M (2017) Getting Started in Electronics Book Renter, Inc.
7 Scherz P (2016) Practical Electronics for Inventors McGraw-Hill Education
8 Platt C. (2015) Encyclopedia of Electronic Components Volume 2: LEDs, LCDs, Audio,
Thyristors, Digital Logic, and Amplification Maker Media, Inc
9 Platt C. (2017) Easy Electronics (Make: Handbook) Maker Media, Inc;
10 Cohen S. (2018) Make It, Wear It: Wearable Electronics for Makers, Crafters, and
Cosplayers McGraw-Hill Education TAB
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
CODE : 321/18/S06
1.0 AIM
To provide the student with a comprehensive understanding of basic electrical principles.
2.0 OBJECTIVES
3.6 apply single phase AC theory to solve problems involving reactive and non-
reactive quantities.
3.9 illustrate the construction, operation and application of single-phase and three-
phase machines.
3.0 TOPICS
4.0 CONTENT
4.1.5 state the relationship between charge and electric current (Q = I. t.).
4.1.6 differentiate between electro-motive force (emf) and potential difference (pd) and
state their units.
4.1.7 define the terms Volt, voltage drop, Coulomb and Ampere.
𝑙
4.1.9 state the parameters of resistance (𝑅 = ñ 𝐴) and perform calculations.
4.1.10 define conductance as the reciprocal of resistance and state its units.
- 0 0C base
- è 0C base (base temperature other than 0 0C)
- Using change of base values.
4.2.3 Calculate unknown voltages, currents and resistances in parallel and series-
parallel networks.
4.2.4 - Differentiate between source voltage, open circuit voltage and terminal
voltage.
4.2.5 State Ohm’s Law (that is, basic form: opposition = cause divided by effect)
I=V/R.
4.2.6 Apply Ohm’s Law to electrical circuits.
4.2.7 - Differentiate between electric energy and power stating their units.
- Define:
a) The joule
b) The Watt
- A straight conductor
- Two parallel conductors
- Solenoid
- Toroid (state application)
- Use corkscrew rule, right hand grip rules.
4.3.7 State that the energy loss associated with hysteresis, i.e. hysteresis loss, is
proportional to the area of the hysteresis loop.
- Magnetic leakage
- Magnetic fringing
- Magnetic screening
𝑑∅
- E= 𝑑𝑡
- 𝐸 = 𝐵𝑙𝑣𝑠𝑖𝑛è
State that the polarity of the induced emf that can be determined using:
- Lenz’s Law
- Fleming’s Right Hand Rule.
𝑑𝑖 𝑑∅
4.3.19 Perform calculations using E = - L𝑑𝑡 = -N 𝑑𝑡
4.3.20 Define:
𝑁∅
- L= 𝐼
𝑁2 ì𝐴𝑁2
- L= 𝑆
= 𝑙
1 2
4.3.22 Calculate energy stored in a magnetic field i.e. 𝑊 = 2 𝐿𝐼 (J).
4.3.23 Define:
4.3.27 𝐿 = 𝐿1 + 𝐿2
𝐿𝐴 −𝐿𝐵
4.3.28 M = 4
𝑄
4.4.6 Perform simple calculations involving C = 𝑉 and Q = It.
4.4.11 Determine the capacitance of a parallel plate capacitor with n-plates using:
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
å𝑜 å𝑟 (𝑛−1)𝐴
C= 𝑑
4.4.12 Perform calculations on series and parallel capacitor networks.
4.5 DC TRANSIENTS
4.5.2 Explain how transients are produced by energy storing banks e.g. inductors and
capacitors.
4.5.3 Describe the transient response of inductor and resistor voltages, and current in a
series R-L dc circuit at switch-on.
4.5.4 Draw the transient growth and decay curves for the R-L circuit.
4.5.9 Describe the transient response for current decay in an R-L circuit.
4.5.11 Describe the transient response of capacitor and resistor voltages, and current in a
series R-C dc circuit at switch-on.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.5.12 Draw the transient growth and decay curves for an R-C circuit.
- Square, rectangular
- Saw tooth, triangular
- Sinusoidal
4.6.3 Explain why the sine waveform is called the AC waveform while other
waveforms are denoted by their descriptive terms.
- Periodic time
- Frequency
- Peak value
- Peak-to-peak value
- Cycle
1
4.6.5 Perform calculations using 𝑇 = 𝑓.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
- Average value
- rms value
- Form factor
4.6.15 Draw phasor diagrams for R-L, R-C and R-L-C series circuits.
4.6.16 Determine the impedance, current and phase angle of each of the circuits in
4.6.15 above. State units of Z.
𝑉
4.6.17 Perform calculations using Pythagoras’ Theorem, trig-ratios and 𝑍 = .
𝐼
4.6.23 Draw the phasor diagrams for R-L, R-C and R-L-C parallel circuits.
4.6.24 Determine the impedance, currents and circuit phase angle from the phasor
diagrams.
- R-L circuit
- R-C circuit
- R-L-C circuit
4.6.33 Calculate true power, apparent power, reactive power and power factor.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.6.35 Perform calculations involving power factor correction (use of static capacitors
only).
4.7.2 Explain the principle of operation of an ideal transformer and use the relationship.
𝐸𝑝 𝑁 𝐼 𝑉
𝐸𝑆
= 𝑁𝑝 = 𝐼 𝑠 = 𝑉𝑝
𝑠 𝑝 𝑠
4.7.4 Identify transformer losses and state how they can be minimized.
4.7.5 Draw and explain the following types of transformer windings and core
construction:
- Core type
- Shell type
- Concentric winding
- Sandwich winding
- Toroidal core
4.7.8 Perform simple calculations involving no-load power and power factor, i.e. no-
load phasor diagram (see 4.7.3).
4.7.9 Describe the principle of operation of the auto-transformer and the current
transformer.
4.8.3 Draw the three-phase waveform and explain how the quantities are displaced by
1200 electrical from each other.
4.8.4 State the relationship between line and phase values of a three-phase network as:
4.8.5 Draw phasor diagrams to show the symmetrical and balanced nature of three-
phase voltages.
4.8.6 Show, by phasor diagrams, analytically or trigonometrically, that the sum of line
or phase currents in a balanced three-phase system is zero.
4.9 AC MACHINES
4.9.1 Draw diagrams of, describe the construction and operation of, and state the
applications of the:
- Repulsion motor.
- Servo motor.
- Multi-speed motor.
4.9.3 Draw diagrams and explain how the speed of a single-phase motor can be varied
using thyristors/ TRIAC’s.
4.9.4 Describe the construction of the stator and rotor of a three-phase machine.
4.9.5 Explain, with sketches, how a rotating magnetic field is produced in the stator.
4.9.6 Describe how torque is developed on the shaft of an induction motor.
4.9.8 Perform calculations on synchronous speed, rotor speed, slip and efficiency.
(Calculations here to suit level of students).
4.9.9 State the difference between a three-phase cage rotor and three-phase wound rotor
induction motors.
4.9.10 Explain, with sketches, the construction and operation of three-phase synchronous
motor.
4.9.11 State applications of cage rotor motor, three-phase wound rotor motor and the
three-phase synchronous motor.
4.9.12 Describe copper and iron losses and relate these to efficiency.
4.10 DC MACHINES
4.10.2 Draw circuit diagrams of series, shunt, separately excited and compound motors.
4.10.4 State the emf, the power and torque equations of DC motors in 4.10.3.
4.10.5 Explain commutation related to correct adjustment of brush position and state
methods of achieving good commutation.
4.10.6 Explain, with the aid of diagrams, the load characteristics of DC motors in 4.10.2.
(Students expected to draw speed-torque and torque-current).
4.10.9 E = V + Ia Ra
4.10.10 E = V – IaRa
2𝑍𝑃𝑁Φ
4.10.11 E= 𝐶60
4.11.1 Describe the construction, principle of operation and application of the following
instruments:
- Moving Coil
- Moving iron
- Thermocouple
- Watt meter
- Energy meter
- Digital voltmeter (simple block diagram)
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.11.2 State advantages and disadvantages of moving coil and moving iron instruments.
4.11.5 Explain the following common errors in measuring instruments that is errors due
to:
- Limitations of the instrument.
- The Operator
- The instrument disturbing the circuit.
4.12 LABORATORY
4.12.3 Verify:
- Ohm’s Law
- Kirchhoff’s Laws
- Superposition Theorem
- Maximum Power Transfer Theorem
4.12.4 Map field patterns around permanent magnets and electro magnets.
4.12.7 Show the variation of reactance with frequency and determine resonant
frequency.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.13.3 Rheostats.
4.13.6 Vero-boards.
1 J.O. Bird (2012) Electrical Circuit Theory and Technology Butterworth Heinneman xford
2 Ashby D. (2009) Electrical Engineering 101 Butterworth Heinmann Oxford
3 Knight S.A. (2014) Electrical and Electronic Principles 2 Prentice
4 Petruzella F.D. (2017) Programmable Logic Controllers McGraw Hill Publishing
5 Rockis G. (2014) Electrical Motor Controls for Integrated Systems American Technical
6 Alexander C.K. (2017) Fundamentals of Electrical Circuits McGraw Hill Publishing
7 Boylestad R. L. (2016) Introduction to Circuit Analysis Prentice Hall
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
CODE : 321/18/S07
DURATION : 80 Hours
2.1 To promote and encourage computer literacy for all Electrical Engineering students.
2.2 To enable the student or trainee to master the basic concepts of the operation of the
computer.
2.3 To develop an ability to communicate in written and other forms of communication
2.4 . To prepare the students for their roles as competent employees with basic
managerial skills.
2.5 To give the student a basic understanding of the complexity and the organization of
business.
2.6 To give the students a working knowledge of purchasing, stock, production and
quality control.
2.0 OBJECTIVES
1.9 use computerized data processing packages to compile process, store and output
business management information: WORD.
PART II COMMUNICATION
1.19 explain the basic statutory requirement with regards to conduct, employment and
condition of service.
1.20 appreciate the administration of the acquisition and control of stock to safeguard
the flow of production.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
DESIGN LENGTH
Part 1 : 45 hours
Part2 : 35 hours
TOTAL : 80 hours
3.0 TOPICS
INTRODUCTION TO COMPUTERS.
COMPUTER EQUIPMENT
COMPUTER SYSTEM ARCHITECTURE
CONFIGURATION
COMPUTER SECURITY
SOFTWARE
DOS
WINDOWS
DATA PROCESSING: WORD
DATA PROCESSING: SPREADSHEET
PART 2: COMMUNICATION
INTRODUCTION TO COMMUNICATION
LANGUAGE
SUMMARY AND COMPREHENSION
SPOKEN COMMUNICATION
MEETINGS
BUSINESS LETTERS
REPORTS
BUSINESS ORGANISATIONS
LEGISLATION AFFECTING EMPLOYERS AND EMPLOYEES.
BASIC STORES MANAGEMENT
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.0 CONTENT
4.2.1 state the function of the under listed computer components, input and output
devices.
- Keyboard
- Mouse
- Visual Display Unit (VDU)
- Printers
- Plotters, for example, graph plotters.
- Magnetic ink character readers (MICR)
- Optical Character Readers (OCR)
- Bar Code Readers
- Touch screens
- Joystick
- Light pens.
- Casing
- System Fan
- CPU Fan
- Heat Sink
- Peripheral control cards
- Interconnecting cables
- Serial, parallel and game ports
4.1.2 describe the way static charge is accumulated, the way in which it can damage
components and the precautions which should be taken.
NATIONAL CERTIFICATE IN ELECTRICAL POWER ENGINEERING 321/18/CR/0
4.3.1 state the main functions of each of the under-listed internal components of a
computer system unit:
4.3.2 distinguish between internal and external data storage media used with computers.
4.4 CONFIGURATION
4.5.3 explain the effects of the underlisted conditions on computer equipment and
accessories:
4.6 SOFTWARE
4.6.5 state the main difference between DOS and Windows operating system.
4.7 DOS
4.7.2 list files and directories which are on the main Hard Disk.
4.7.3 list all files whose names begin with a given letter.
4.7.4 list all files with a given file extension (for example, ---exe, ---com, ---doc).
4.7.6 copy a file from a floppy (normally A:\drive) to a specified directory on C:\drive
– and vice versa.
4.7.6 copy all files simultaneously from A:\drive to a specified director on C:\drive and
vice-versa.
4.8 WINDOWS
4.8.4 copy a group of files from C:\ to A:\ drive and vice-versa.
4.10.1 Describe what a spreadsheet is and give two examples of spreadsheet packages
currently in general use.
4.10.2 Describe the spreadsheet page layout (columns, rows and cells).
4.10.5 Use the Copy and Paste tool to duplicate cell contents in another part of a
worksheet.
4.10.7 Prepare (format) a spreadsheet page to receive and manipulate stock control data
under the following headings:
4.10.20 Sum
4.10.21 Average
4.10.23 Count
4.10.24 Round
PART 2: COMMUNICATION
4.11.8 To define:
- Transmitter
- Receiver
- Decoder
- Feedback
4.12 LANGUAGE
- Interviews
- Appraisal
- Reward
- Counselling
- Grievances
- Reprimands
- Dismissal
- Termination
4.15. MEETINGS
- Chairperson
- Secretary
- Treasurer
4.16 BUSINESS LETTERS
4.16.2 To write:
- Person to firm.
- Firm to person
- Firm to firm
- Inquiry letter
- Quotation letter
- Order letter
- Delivery letter
- Collection letter
- Memorandum
- Complaint and adjustment letter.
4.17 REPORTS
4.18.3 To appreciate the need for co-operation flow of information, communication and
feedback between departments.
4.18.4 To appreciate the role of leadership styles, work ethics and human relations to the
success of the enterprise.
4.20.3 To appreciate the need for material, handling and storage specifications.
4.20.4 To understand the effect of depreciation on equipment, capital equipment and the
flow of production.
CODE : 321/18/S08
DURATION : 80 Hours
1.0 AIM
2.0 OBJECTIVES:
a. explain and apply the basics of engineering drawing equipment, types of lines,
lettering, the relevant conventional standards, etc.
e. produce and interpret block and schematic diagrams of electronic, electrical and
instrumentation drawings.
f. use AutoCAD concepts to draw all diagram done on the drawing board.
-
3.0 TOPICS
4.0 CONTENT
4.1.4 identify and state the different pencil grades used for drawing particular lines, arcs
and circles.
4.1.5 identify and state the standard paper sizes used in Engineering Drawing.
4.1.7 identify, use and list drawing instruments and equipment as e.g. compass, set
square, T rule, drawing board.
4.1.11 produce clear and uniform freehand letters and numerals in accordance with
BS308.
4.1.2 State the two types of pictorial views i.e. isometric and oblique.
4.2.4 Sketch and draw simple engineering components in oblique and isometric views.
4.3.2 Describe how to obtain views in orthographic projection, i.e. first angle and third
angle.
4.3.3 Explain the difference between first and third angle orthographic projection.
4.3.10 Interpret all relevant information from given first and third angle orthographic
views.
4.3.11 Sketch and draw objects in first and third angle projection, including hidden
details.
4.3.13 Convert or orthographic draws (first and third angle) to pictorial views (isometric
and oblique) and vice versa.
4.4 SECTIONING
4.5.1 Produce and interpret circuit diagrams in electrical, computer, electronic and
instrumentation and control engineering.
4.5.2 Identify BS3939 symbols and state the meaning of each symbol.
4.5.5 Interpret all relevant information from given block and schematic diagrams.
b) Instrumentation:
c) Electronic Engineering:
d) Computer Systems:
8.1.2 T-square
8.1.3 Set squares (450 and 600)
8.1.7 Protractor
8.1.10 Eraser
8.1.11 Stick-stuff
8.1.12 Computers
2 PICTORIAL DRAWINGS 20
3 ORTHOGRAPHIC 20
4 SECTIONING 20
5 CIRCUIT DIAGRAMS 15