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  1. The efficiency of a lifting machine is the ratio of

    2. A.

    output to the input
    B.

    work done by the machine to the work done on the machine
    C.

    mechanical advantage to the velocity ratio
    D.

    all of the above

    View Answer

    Workspace

    View Answer

    Answer : Option D

    Explanation :

    No answer description available for this question. 

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