Question

7. __________ is also known as coolant and is found in liquid-cooled engines.

Answer 1

Answer:

Anti-Freeze solution

Explanation:

An anti-freeze is also generally called as a coolant for the engines. An antifreeze is used in the engines of the cars and other vehicles as the water circulating in the cooling system of the engine gets freeze at 0 degree Celsius which leads to the expansion of this water by 9% in the cooling system of the engine.

This expansion is sufficient to make a crack in the radiator or cylinder. So, to prevent this damage an antifreeze solution is added as a coolant to the water to prevent it from getting freeze and shifts its freezing temperature from 0 degree to -37 degree Celsius approx. Also, this antifreeze solution prevent corrosion in the engine. A coolant is given a green color to detect any leakage in the cooling system.

Answer 2

Answer:

It is Anti Freeze

Explanation: