Discussion :: Engineering Mechanics
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Efficiency of a screw jack is given by(where α = Helix angle, and φ = Angle of friction.)
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A.
\(\frac { tan(\alpha + \phi) } {tan\alpha }\) |
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B.
\(\frac {tan\alpha } { tan(\alpha + \phi) }\) |
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C.
\(\frac { tan(\alpha - \phi) } {tan\alpha } \) |
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D.
\(\frac {tan\alpha } { tan(\alpha - \phi) } \) |
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Answer : Option B
Explanation :
No answer description available for this question.
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