Practice question

What is the correct procedure for cleaning corroded lead-acid battery terminals?

Wash the terminals with petrol and a steel wire brush
Disconnect the negative cable first, then clean the terminals and posts with a wire brush and a solution of baking soda and water, then reconnect
Pour sulphuric acid on the terminals to dissolve the corrosion
Spray engine oil on the terminals and wipe with a dry cloth

Answer: B — Disconnect the negative cable first, then clean the terminals and posts with a wire brush and a solution of baking soda and water, then reconnect

The correct answer is shown above. Try the full quiz for additional practice.