Multiple choice

The reason to add coolant in a motor engine is to

  1. increase the acceleration

  2. reduce the volume of harmful exhaustible gases

  3. to lower the temperature of the engine

  4. to increase the lubrication of piston of the engine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Coolant is a fluid, which flows through the engine to prevent its overheating. It is also called ‘anti-freeze’, which keeps the water that cools the engine from freezing.

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