Automechanical Works Paper 2 WASSCE (SC), 2020

SECTION A (a)       Name two parameters expressed in Ohm’s law.
(b)     Sketch a lead-acid battery and label three of its parts.
(c)     What are the compositions of lead-acid battery electrolyte?
(d)      State two merits of an alternator.

Observation

 

Although the performance here was encouraging, a high percentage of those who attempted the question could not properly sketch the battery.
The correct sketch of this is given below.

      

A lead acid battery

                                                                       

(C)

battery cell

 

 

negative and positive plate