Which of the following auxiliary systems maintains engine temperature by circulating coolant and dissipating excess heat through the radiator?
Cooling system
During combustion an internal-combustion engine releases a large amount of heat, and only part of it does useful work while the rest must be removed to keep parts within safe temperature limits.
The auxiliary system that controls this heat is the cooling system, which circulates coolant through jackets and passages in the cylinder block and head.
The coolant absorbs heat from the hot metal and is pumped to the radiator, where the heat is dissipated to the surrounding air before the cooled fluid returns to the engine.
This continuous circulation is exactly what the question describes, so the cooling system is the correct match.
The lubrication system circulates oil to reduce friction and wear, not primarily to control temperature through a radiator.
The exhaust system carries away the burnt gases and silences them, and the fuel supply system delivers metered fuel to the cylinders; neither manages engine temperature with coolant and a radiator.
Hence, the answer is Cooling system.
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Important Questions from Cooling System
Aircraft engines use ____ for cooling engines.
Air cooling is mostly preferred for ______.
As the rating of the pressure cap increases in the radiator, the boiling point of the coolant
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