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1. In a screw jack, the effort required to lower the load W is given by





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MCQ->In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.....
MCQ->In a screw jack, the effort required to lower the load W is given by....
MCQ->In a screw jack, the effort required to lift the load is given by(where W = Load lifted, α = Helix angle, and φ = Angle of friction.)....
MCQ->In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction)....
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