Mechanical Engineering - Engineering Mechanics - Discussion

Discussion Forum : Engineering Mechanics - Section 3 (Q.No. 41)
41.
For a self locking machine, the efficiency must be
equal to 50%
less than 50%
greater than 50%
100%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

Rahul said:   5 years ago
Reversible machine: For reversible machine efficiency will be greater than 50%.

Non - Reversible machine: A machine which is not capable of doing work in the reverse direction is called Non - Reversible machine.

It is also called self- locking machine.

Non-reversible machine efficiency will be less than 50%.
(2)

Raj kamboj said:   6 years ago
Thanks @Raj.

Basit Tanoli said:   7 years ago
Thanks @Raj.

Raaj said:   9 years ago
Non-reversible machine is self-locking so, the given answer is correct.

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