Automobile Engineering in ME
The vehicle ride will be comfortable if

Unsprung mass is kept minimum
Sprang mass is kept minimum
All of the listed here
Vehicle mass is kept minimum

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

All of these
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

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