SIGALAGALA NATIONAL POLYTECHNIC
QUALIFICATION: ELECTRICAL ENGINEERING POWER OPTION
LEVEL 6
UNIT CODE: ENG/OS/EI/CC/02/6
UNIT OF COMPETENCY: PERFORM WORKSHOP PROCESSES:
JULY 2025
INSTRUCTIONS TO CANDIDATES TIME: 3 HOURS
Marks of each question are indicated in the brackets
Write your registration number on BOTH the question paper answer booklet
Answer questions in the answer booklet provided
Mobile phones and unauthorized electronic gadgets are NOT allowed in the examination room
Do not write on the question paper
Use a blue ink colored pen to write
Any exam malpractice will lead to disciplinary action
Candidates should answer the questions in English unless stated otherwise
Hand in BOTH the question paper and answer sheet at the end of the exam
Admission number of trainee: ……………………………………………………
Date :………………………………………………………………………………………...
Signature…………………………………………………………………………………….
SECTION A. (10 MARKS)
Attempt ALL questions in this section.
1. Why is it a better practice to avoid joint boxes in an electrical installation? (1 Mark)
A. The length of wire required is more in joint box system
B. Fault occurs in joints by overheating and it becomes difficult to locate them in case of
large number of joints
C. Joint boxes increase the cost
D. Both (A) and (C)
2. What is the purpose of a ground fault circuit interrupter (GFCI) in an electrical workshop? (1 Mark)
A. To prevent electrical shocks
B. To regulate voltage fluctuations
C. To enhance electrical conductivity
D. To increase power output
3. What is the name of the book where tools list is kept in a workshop? ( 1 mark)
A. Tools Catalogue
B. Tools inventory
C. Tools black book
D. Tools master roll
4. Equipment designed to be worn or held to protect against a risk to health and safety is called? (1
Mark)
A. Hazard
B. Risk
C. PPE
D. IEE.
5. What should be worn to protect against electrical shocks in an electrical workshop? (1 mark)
A. Rubber gloves
B. Safety goggles
C . Steel-toed boots
D. Ear protection.
6. To avoid back injury when manually lifting heavy weights from ground level workers should: (1 mark)
A. Bend both legs and back
B. Bend legs but keep back straight
C. keep legs straight but bend back
D. keep both legs and back straight.
6. For any fire to continue to burn, three components must be present. These are: (1 mark)
A. Fuel, wood, cardboard
B . Petrol, oxygen, bottled gas
C. Flames, fuel, heat
D. Fuel, oxygen, heat
7. How should you manage a severe burn until medical help arrives? (1 mark)
A. Apply butter or oil to the burn
B. Immerse the burn in cold water continuously
C. Use adhesive bandages to cover the burn
D. Keep the burn elevated above the heart Assembly point
8. A file removes the metal during (1 mark)
A. forward stroke
B. none of these
C. return stroke
D. both forward and return stroke
9. Which of the following is true about Class C fire extinguisher? (1 mark)
A. It is used on fires involving materials such as wood, paper & cloth.
B. Water extinguisher is the most commonly used.
C . It is used on fires caused by combustible metals
D. It is used on fires involving gases.
10. Which one of the following is NOT a benefit of using PPE? (1 mark)
A. Reduced chances of electric shock
B. Prevents death
C. Prevents respiratory infections
D. Restricts comfort and movements
SECTION B (40 MARKS)
Attemt ALL questions in this section.
11. Explain the reason for earthing electrical equipment. (2 Marks)
12. List any four objectives of industrial safety(4 Marks)
13. Mary wants to carry out electrical installation in a workshop. List any three PPE that she may need:
(3 Marks)
14. State five reasons for record keeping in an electrical workshop (5 Marks)
15. State any two safety precautions to be observed while working with the following tools (10 Marks)
i. Screw drivers
ii. Wrenches
iii. Chisels
iv. Saws
v. Reamers.
16. List any four measuring tools used in engineering for accuracy and precision . (4 Marks)
17. State any two ways of identifying a faulty machine (2 Marks)
18. List four factors to consider when deciding whether to repair or replace equipment in the workshop.
(4 Marks)
19.State any three items that a first aid kit must have (3 marks)
20. State any three mechanical causes of accidents (3 marks)
SECTION C (50 MARKS)
Answer any TWO questions from this section.
21. a) Describe the three principles of the “3Rs” in waste management. (6 marks)
(b) Proper storage of workshop tools and equipment enhances their efficiency and longevity. Discus
five factors to consider when choosing storage solutions for workshop tools and equipment.
(10 marks)
(c) Several factors contribute to accidents in a workshop. Human beings being a contributing factor.
Explain two ways in which human beings contribute to accidents in the workshop. (4 marks)
(d)Explain the steps to be taken when rescuing someone from electrical shock. (5 Marks)
22. (a) A fault refers to an abnormal condition or malfunction within a system in electrical systems and
disrupts the normal flow of electricity. State three:
(i) Faults that can be revealed by visual inspection of electrical system. (3 marks)
(ii) Symptoms of a faulty D.C motor. (3 marks)
( b) Maintenance helps in extending the lifespan of hand tools, ensure efficient operation, and
maintain their overall condition and performance. State three common maintenance routines for
hand tools and how each is performed. (9 marks)
( c) Accurate diagnosis is crucial for effective repair and to prevent further damage or recurrence of
the issue. Highlight five steps involved in a fault diagnosis procedure for a malfunctioning electrical
circuit. (5 marks)
(d) Outline FIVE reasons why it is important to conduct testing on an electrical installation. (5 Marks)
23. Fire outbreak can be a major concern in an electrical workshop and proper mechanisms must be put
in place to guard against it.
(a) Explain FIVE classes of fire. (10 Marks)
(b) Describe THREE methods of fire extinguishing. (6 Marks)
(c) List TWO causes of fire in a workshop. (2 Marks)
(d) Outline SEVEN objectives of industrial safety. (7 marks)
THIS IS THE LAST PRINTED PAGE. All The Best.
TRAINER. SUSAN NJUGUNA.
