Automobile Engineering in ME
The cam shaft in an engine is always mounted

Perpendicular to the crankshaft
Inclined to the crankshaft
None of these
Parallel to the crankshaft

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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 draws heat out of the engine compartment
It blows air through the radiator when necessary
It cools the engine by blowing air onto the cylinder block

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