Mechanical Engineering - Engineering Mechanics - Discussion
Discussion Forum : Engineering Mechanics - Section 6 (Q.No. 45)
45.
A screw jack used for lifting the loads is
Discussion:
9 comments Page 1 of 1.
Saikumar said:
5 years ago
Because when we remove the effort, the screw jack can't do anything in the reverse direction. So it is non-reversble machine.
(1)
Sriman Ghorui said:
7 years ago
Non-reversible is that it's efficiency should be less than 50%.
Rakman sangma said:
7 years ago
In a screw jack, the effort required to lower the load is the answer.
SHIVAPRASAD HG said:
7 years ago
Screw jack is a non reversible machine, as it does not return to its original position even after the load is applied.
Fardeen shah said:
8 years ago
Screw jack is used to adjust support for heavy loads then it is a reversible machine, please give me reason why?
Abhinav said:
9 years ago
It is due to the less efficiency.
Vesu said:
9 years ago
Since the efficiency of a screw jack is below 50%. It is a non-reversible machine.
Mehul Kathiriya said:
1 decade ago
I can't understand please can you explain in detail.
Gaurav said:
1 decade ago
Since it includes friction its non-reversible.
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