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Discussion :: Theory of Machine

  1. In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction)

  2. A.
    P = W tan(α - φ)
    B.
    P = W tan(α + φ)
    C.
    P = W tan(φ - α)
    D.
    P = W cos(α + φ)

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    Workspace

    Answer : Option B

    Explanation :

    No answer description available for this question.


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