Automechanical Works Paper 2 WASSCE (SC), 2021

SECTION A

  (a)              What does each of the following electrical symbols represent?

           

(b)           Sketch a simple parallel electrical circuit consisting of three lamps, a
battery and as switch.
(c)           State one advantage of parallel circuit connection over series connection.
(d)           Explain the term short circuit.

Observation

 

This question was poorly answered as most candidates failed to name the symbols and sketch the required circuit. The solution to the poorly answered question is given below.

(a)        Electrical symbols

    1. Cross wire or Conductors crossing without connecting           
    2. Diode
    3. Capacitor or condenser
    4. DCelectricmotor   OR  motor d.c.
    5. ACelectric motor OR motor a.c.

 

Parallel circuit