Automobile Engineering in ME
The purpose of transmission in an automobile is

None of these
To vary the speed of automobile
To vary the power of automobile
To vary the torque at the wheels

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

Less compression ratio gives better performance
It makes petrol engines lighter
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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