Question

To avoid which of the following the water level in the electrolyte should be checked periodically?

(a) To control the temperature

(b) To control the pressure

(c) To avoid the damage of the separator and plates

(d) To avoid the damage of the electrodes

This question was addressed to me in an internship interview.

Question is taken from Battery Troubles topic in section Storage Batteries of Automotive Engine Design

Answer 1

Correct option is (c) To avoid the damage of the separator and plates

The best I can explain: The water in the electrolyte keeps on evaporating and periodic checks must be made to ensure that proper level and gravity is being maintained. If this is not done, the separators and the plate may be permanently damaged.