Question: 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.)
[A].P = W tan (α – φ)
P = W tan (α + φ)
P = W tan (φ – α)
P = W cos (α + φ)
[A].
[B].
[C].
[D].
Answer: Option B
Explanation:
No answer description available for this question.