WASSCE/WAEC Electrical Installation & Maintenance Past Questions PDF – Objective/Essay

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Elect Installation & Maintenance Work Paper 1 – Theory/Essay Questions.
Elect Installation & Maintenance Work Paper 2 – Objective Test Questions.

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WASSCE Electrical Installation and Maintenance Work Past Questions

Answer all the question
Each questions is followed by four option lettered A to D. Find the correct option for each question and shade in pencil on your answer sheet, the answer space which bears the same letter as the option you have chosen.
Give only one answer to each questions

An example is given below

Which of the following materials is a conductor?
A.  Clay
B.  Plastic
C.  Iron
D.  Ceramic

The correct answer is Iron, which is lettered C, and therefore answer space C would be shaded

[A] [B] [C] [D]

Think carefully before you shade the answer spaces erase completely any answer(s) you wish to change.

Do all rough work on this questions paper

Now answer the following questions.

Objective – WAEC Electrical Installation Multiple Choice Questions

1. For the purpose of safety, switches should be connected lo
A. live conductors only.
B. neutral conductors only
C. earth conductors only.
D. live and earth conductors.

2. In first aid treatment, artificial respiration is administered on a victim of
A. cut
B. acid bum.
C. dislocation
D. electric shock

3. According to IEE regulations, ceiling rose must not be used on circuits above
A. 110 V.
B. 220 V.
C. 240 V
D. 650 V.

4. Which of the following terms is not a reason for protecting electrical installations”
A. Earth leakage
B. Electric shock
C. Excess current
D. Lightning circuit

5. In an electrical workshop, electric shock could be prevented through
A. wet hands
B. unearthed plug
C. cable without mechanical protection.
D. socket outlet connected to earth

6. What does the figure 3 represent in a 3/029 cable?
A. Length
B. Width
C. Core
D. Diameter

7. A tool used for removing bearing from a shaft is called
A. an extractor.
B. a hammer.
C. a spanner
D. a knife.

8. What type of joint docs the diagram below illustrate?

[Download the Free Elect Installation & Maintenance WAEC Past Questions in PDF below to see Diagram]

A. Scarf
B. Married
C. Tee
D. Britannia

9. Which of the following devices is not a primary cell?
A. Lead acid cell
B. Leclanche cell
C. Daniel cell
D. Simple cell

10. The type of socket used for domestic equipment is
A 15 A.
B 13 A
C 10 A
D. 5 A

11. What does the diagram below represent?

[Download the Free Elect Installation & Maintenance WAEC Past Questions in PDF below to see Diagram]

A. Solid elbow
B. Inspection elbow
C. Through box
D. Ice box

12. Winding conductors are insulated with
A. varnish
B. paper.
C. rubber
D. mica.

13. A coil span can be defined as
A. an insulating support of ceramic.
B. number of teeth in a coll.
C. the distance between the starting {Joint and finishing point of a coil
D. a material which offers a very low resistance to the flow of current

Study the diagram below and answer questions 14 and 15

[Download the Free Elect Installation & Maintenance WAEC Past Questions in PDF below to see Diagram]

14. The diagram represents

[Download the Free Elect Installation & Maintenance WAEC Past Questions in PDF below to see Diagram]
A. a vice.
B. a multimeter.
C a micrometer
D. an ammeter

15. In which of the labelled part could a reading be obtained?
A. G
B. I
C. J
D. K

16. The rotating part of an a.c motor is known a
A. an armature
B. a rotor.
C a stator.
D a yoke.

17. The direction of rotation for a d.c motor could tie determined using
A. Lenz’s law
B Fleming’s right hand rule
C. Fleming’s left hand rule.
D Faraday’s law.

18.During polarity tests for lighting circuits, it is important to verify that the switch is on
A. The live conductor
B. the neutral conductor
C. both live and neutral conductors
D. the earth conductor

19. Which of the following equipment could be used for overhead cable installation?
A. Wooden Ladder
B. Bending machine
C. Standing vice
D. Blowlamp

The diagram below illustrates an industrials flex rubber sheathed cable, study it and answer questions 20 and 21

[Download the Free Elect Installation & Maintenance WAEC Past Questions in PDF below to see Diagram]

 
20. The part labelled S is used for
A. protection
B. conduction
C. support
D. armouring

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Test of Practical in WAEC Elect Installation Maintenance Work

SECTION B
Test of Practical
[50 marks]

Answer all questions

WAEC Electrical Installation Essay Questions

4a.

The diagram above illustrates an electric lamp. Study it carefully and answer the following questions

i. Name the parts labeled V, W, X, Y and Z
ii. What type of lamp does the diagram illustrate?
iii. State one function each of the part Labelle V and Z
iv. Name the gas used in filling the lamp
v. State three possible faults that could make the lamp not to light when switched on

4b.

Figs. 1.1, 1.2 and 1.3 Illustrate three lamps, three one-way switches and a joint box respectively. Study the symbols and answer the following questions

i. Using Figs 1.1, 1.2 and 1.3, draw the wiring diagram showing each lamp controlled independently by it corresponding switch.

ii. State three precautions to be taken when carrying out the wiring on a wiring board.

iii. List five materials needed in carry out the wiring on a wiring board.

iv. State the standard required cable size that can be used when carrying out the wiring on a wiring board

 
5a.

The diagram above represents a PVS armoured cable. Study it and answer the following questions
i. Name the parts labeled I, II, III and IV
ii. State three precautions taken while installing a PVC amoured cable

5b.

i. The diagram above represents the electrical design of a living room. Identify the following electrical symbols labeled I, II, III, IV, V, VII and VIII
I
II
III
IV
VI
VII
VIII

ii. State one reason for location of VII

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