Automobile Engineering in ME
The crankcase dilution means

Dilution of fuel in the crankcase
Dilution of oil by water in the crankcase
Dilution of mixture passing through crankcase in two stroke engines
Dilution of lubrication oil by fuel in the crankcase D. Dilution

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Automobile Engineering in ME
When the front wheels of a vehicle are locked during braking, then

Front tyres skid across the road surface, and the vehicle spins around
Stopping distance becomes extremely long
Driver loses control over the steering, and the vehicle continues moving in its current direction
Rear tyres skid across the road surface, and the vehicle spins around

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Automobile Engineering in ME
In a ventilated disc brake

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

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