Question

What is the amount of water and acid present in the electrolyte after the full discharge of the battery?

(a) 90% of water and 10% of acid

(b) 85% of water and 15% of acid

(c) 70% of water and 30% of acid

(d) 75% of water and 25% of acid

This question was posed to me in quiz.

This interesting question is from Lead-Acid Battery in division Storage Batteries of Automotive Engine Design

Answer 1

Right choice is (b) 85% of water and 15% of acid

Explanation: The ratio of water and acid in the full discharged state is 85 per cent of water and 15 percentage of acid whereas in the fully charged condition the electrolyte contains 39 percentage of acid and 61 percentage of water.