SSC JE Mechanical Engineering 2018 Set 4 Paper

Question : 127 of 200

Marks: +1, -0

A power transmission shaft of diameter d rotating at the speed of N rpm. The power P is related to diameter d and N as________.

Solution:

A power transmission shaft of diameter 'd' rotating at the speed of N rpm. The power P is related to diameter d and N as

P={2πNT}/60

Watt.

T/J={ τ (TOU)}/R

T/(Πd^4\/32)=τ /(d\/2)

P∝ (Nd^3)

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