Automobile Engineering in ME
The vehicle ride will be comfortable if

Sprang mass is kept minimum
All of the listed here
Unsprung mass is kept minimum
Vehicle mass is kept minimum

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Automobile Engineering in ME
The function of a radiator fan in the cooling system is that

It is turned by wind force as the vehicle moves forward, and its rotation drives the water pump
It cools the engine by blowing air onto the cylinder block
It draws heat out of the engine compartment
It blows air through the radiator when necessary

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