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The coolant is made up of three components they are ______

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The coolant is made up of three components they are ______

(a) water, anti-freezer and SCA’s

(b) water, fuel, and silicates

(c) water, buffers and SCA’s

(d) water, SCA’s and defoamers

I had been asked this question in an online interview.

My question is based upon Coolants in section Cooling System of Automotive Engine Design

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Right answer is (a) water, anti-freezer and SCA’s

Explanation: The coolant consists of water and anti-freeze in proper proportion with a small amount of SCA’s. The antifreeze does not let the coolant to freeze in cold climates and the SCA’s helps in the life and health of the engine, especially older equipment.

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