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  1. The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be

    2. A.

     More
    B.

     Less
    C.

     Same
    D.

     Data insufficient to predict

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    Answer : Option A

    Explanation :

    The Otto engine has more efficiency than diesel engine. As the ratio of area under p-v diagram to heat addition in case of petrol engine is more than the diesel engine. But for the practical purposes the diesel engine has more efficiency.

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