Automobile Engineering in ME
In bias ply tyres

All plies run parallel to one another
One ply layer runs diagonally one way and another layer runs diagonally the other way
Belts of steel mesh are used in the tyres
All of these

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Automobile Engineering in ME
The function of an oil control orifice is that it

Regulates the pressure of engine oil supplied by the oil pump for the lubrication of cylinder head mechanism and other purposes
Removes impurities from cylinder head lubricating oil
Turns oil into fine mist for spray lubrication
Returns cylinder head lubricating oil to the oil pan at high speed

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

It draws heat out of the engine compartment
It blows air through the radiator when necessary
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

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