Automobile Engineering in ME
The effect of vapour locking on the brake performance is that the

Brakes function more effectively
Brake operation is delayed after depression of the brake pedal
Vapour locking has no effect on brake performance
Brakes fail completely

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Automobile Engineering in ME
The main feature of Macpherson strut suspension is that

Non vertical external forces are supported by the suspension arms
The vertical size of the suspension can be made more compact
The unsprung mass in lighter
The assembly is slightly more complicated in design

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

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

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