______ is used to keep the cooling water automatically to a predetermined value.(a) motor(b) overhead valve(c) overflow pipe(d) thermostatThis question was addressed to me in semester exam.I'm obligated to ask this question of Components of Water Cooling System topic in chapter Cooling System of Automotive Engine Design

______ is used to keep the cooling water automatically to a predetermi

1.	______ is used to keep the cooling water automatically to a predetermined value.(a) motor(b) overhead valve(c) overflow pipe(d) thermostatThis question was addressed to me in semester exam.I'm obligated to ask this question of Components of Water Cooling System topic in chapter Cooling System of Automotive Engine Design
Answer» CORRECT OPTION is (d) thermostat Explanation: A thermostat is used to automatically KEEP the cooling water temperature at a predetermined value. It ALSO helps the engine to reach the operating temperature as soon as POSSIBLE after starting the engine.

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