Automobile Engineering in ME
A basic difference between the spark ignition engine and the Diesel engine is that the

Fuel is sprayed into the combustion chamber in the Diesel engine as the piston nears T.D.C. on the compression stroke
Air temperature ignites the fuel in the Diesel engine
Diesel engine compresses air alone instead of an air-fuel mixture
All of these

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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 rear tyres
Distance between the centres of the front tyres

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