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Mechanical Engineering - Machine Design - Discussion

Discussion Forum : Machine Design - Section 3 (Q.No. 48)
Machine Design
48.
When the speed of belt increases,
the coefficient of friction between the belt and pulley increases
the coefficient of friction between the belt and pulley decreases
the power transmitted will decrease
the power transmitted will increase
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
18 comments Page 2 of 2.
Rahil said:   8 years ago
When the speed got increased then the sliping also increase so the power transmission got decrease.
Vaseem said:   8 years ago
The answer is C. Because at the higher speed the belt slips on the pulley and so the power will be less as compared to desired power at corresponding speed (as in ideal condition). If the belt doesn't slip on the pulley at a higher speed then the power will increase. But it is not possible in actual practice.
Nomaan ahmad khan said:   8 years ago
Yes, the Answer is d.
Sampad bera said:   9 years ago
I think correct answer will be D, because p = (t1 - t2) * v.
Sampad bera said:   9 years ago
I think correct answer will be D, because p = (t1 - t2) * v.
VENKATESH said:   10 years ago
No, Power = (Torque x Velocity)/33000 hp.

Hence 'C' is correct.
Gaurav said:   1 decade ago
Power = Torque*w.

Correct answer is D.
Manoj said:   1 decade ago
p = (T1-T2)*v.
So if speed increases, power transmitted should also increase.
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