Mechanical Engineering - Engineering Mechanics - Discussion
Discussion Forum : Engineering Mechanics - Section 2 (Q.No. 13)
13.
A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is
Discussion:
32 comments Page 3 of 4.
Jeyavelmurugan said:
7 years ago
Weight is greater than effort that is reversible.
Entekarunakar said:
7 years ago
Thanks to all for proving the correct explanation.
(1)
Jithin.k said:
7 years ago
What about the universal machine?
(1)
Aishu said:
7 years ago
Why should we multiply 100 with 20 in calculating velocity ratio? Please explain.
(1)
Bhuvnesh Rana said:
7 years ago
No machine is an ideal machine in practice.
And the efficiency of a machine can never be 100% in practice.
And the efficiency of a machine can never be 100% in practice.
(1)
Subhash said:
6 years ago
It is Less than 50%.
(2)
Akshat said:
6 years ago
What are the System of pulleys?
Omid said:
6 years ago
@Aishu.
Because the efficiency is calculated in % age. So to bring it in percentage it's multiplied with 100.
Because the efficiency is calculated in % age. So to bring it in percentage it's multiplied with 100.
DM Shihora said:
4 years ago
Thanks for the explanation.
Raymond said:
4 years ago
What if the efficiency of a machine equals 50%, is it reversible or irreversible? Please explain.
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