Automobile Engineering in ME
Wheel base of a vehicle is the

Extreme length of the vehicle
Distance between the centres of the front and rear wheels
Distance between the centres of the front tyres
Distance between the centres of the rear tyres

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Automobile Engineering in ME
The compression ratio in petrol engine is kept less than in Diesel engine because

It makes petrol engines lighter
Less compression ratio gives better performance
Higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition
It is just customary to have less compression ratio in petrol engines

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Automobile Engineering in ME
In bias ply tyres

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

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