Mechanical Engineering - Theory of machines - Discussion

Discussion Forum : Theory of machines - Section 5 (Q.No. 23)

Theory of machines

23.

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

P = W tan(α - φ)

P = W tan(α + φ)

P = W tan(φ - α)

P = W cos(α + φ)

Answer: Option

Explanation:

No answer description is available. Let's discuss.

Discussion:

1 comments Page 1 of 1.

Dinesh Jangra said: 3 years ago

Lift the load w tan +.

Lower the load w tan -.

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