Question

what do you use to check the electrolyte level in a lift truck battery?
a candle
a flashlight
a match
a lighter

Explanation:

When checking the electrolyte level in a lift - truck battery, a flashlight is a safe option. Candles, matches, and lighters involve an open flame. Lift - truck batteries can emit hydrogen gas (especially when charging), and an open flame in the presence of hydrogen gas can cause an explosion. A flashlight provides light without the risk of an open flame.

Answer:

B. A flashlight