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JCECE Engineering JCECE Engineering Solved Paper-2011

  • question_answer
    To maintain a rotar at uniform angular speed of\[200\,\,rad/s\], an engine needs to transmit a torque of\[180\,\,Nm\]. What is the power required by engine? (Assume efficiency of engine to be \[80%)\]

    A) \[36\,\,kW\]                      

    B) \[18\,\,kW\]

    C)  \[45\,\,kW\]                     

    D)  \[54\,\,kW\]

    Correct Answer: C

    Solution :

    Power required for rotar,\[P=\tau \cdot W\]                                                       \[=36\,\,kW\] Power of engine\[{{P}_{0}}=\frac{P}{0.8}=45\,\,kW\]


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