Basic Electronics Paper 2, WASSCE (SC, 2023

Question 6

 

(a) Draw the symbols used to represent the following electrical devices:
(i) Transformer
(ii) Socket outlet;
(iii) lamp;
(iv) fuse.
(b) State three tests carried out on a new electrical installation.
(c) List three types of electrical wiring system.

OBSERVATION

The expected responses were:
(a) Symbols used to represent the following electrical devices:             

  • Transformer:

                      

  • Socket outlet:

Text Box: OR                                                    

  • Lamp:

Text Box: OR                            

  • Fuse:

Text Box: OR       
(b) Tests carried out on a new electrical installation.
- Polarity test
- Earth leakage test
- Continuity test
- Insulation resistance test


 

(c) Types of electrical wiring system

  • Surface
  • Conduit
  • Trunking
  • Ducting

Many candidates attempted this question. Some of them did well.