Mechanical Engineering - Theory of machines - Discussion
Discussion Forum : Theory of machines - Section 1 (Q.No. 44)
44.
In a screw jack, the effort required to lower the load W is given by
Discussion:
12 comments Page 2 of 2.
Rohit kesharwani said:
7 years ago
C is the right answer.
You are right @Prince.
Refer to self-locking back driving condition. The Coefficient of friction angle should be greater than the helix angle for self locking condition. Otherwise, overhauling or back driving condition will start.
You are right @Prince.
Refer to self-locking back driving condition. The Coefficient of friction angle should be greater than the helix angle for self locking condition. Otherwise, overhauling or back driving condition will start.
Alisa said:
4 years ago
Does anyone know how to prove the relationship between P, W, and θ?
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