Civil Engineering - Applied Mechanics - Discussion

42. 

Maximum efficiency of a screw jack for the angle of friction φ, is

[A].
[B].
[C].
[D].

Answer: Option D

Explanation:

No answer description available for this question.

Ashish Alikana said: (Nov 25, 2015)  
Why this bit correct please solving and some mathematically reason of this question?

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