Automobile Engineering in ME
The condition that causes vapour locking in a brake system is

Overheating of the fluid due to frequent brake application
Keeping the vehicle without use for an extended period
Overcooling of the brakes during high speed driving
An excessively high engine speed on a downhill road

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Automobile Engineering in ME
In a ventilated disc brake

Disc contains many small holes for optimum cooling performance
Caliper is covered with cooling fins
A duct directs air towards the caliper for cooling while the vehicle is moving
Disc contains radial vanes between its rubbing surfaces for optimum cooling performance

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Automobile Engineering in ME
The basic function of the suspension is to

Ensure that wheel alignment is not disturbed during driving
Ensure that the steering wheel can deliver a suitable amount of steering force
Automatically correct the effects of over steering
Absorbs vibration and impact forces from the road surface

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