1. The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction)





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MCQ->The efficiency of a screw jack is maximum, when(where α = Helix angle, and φ = Angle of friction.)....
MCQ->The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction)....
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