When the shaft is subjected to pure bending moment, the bending stress is given by?

Mechanical Engineering : Machine Design - Quiz(MCQ)

8M/Ï€dáµŒ

16M/Ï€dáµŒ

32M/Ï€dáµŒ

None of the above

Correct Answer : Option (C) : 32M/Ï€dáµŒ

Explanation : Stress =My/I where y=d/2 and I=πdâ´/64.

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Which type of rope drum is preferred?

Drums with helical grooves

Plain cylindrical drums

Both are equally preferred

None of the above

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Small sheaves are preferred over large sheaves on what parameters?

Higher cost of small sheaves

Increasingly centrifugal force in large sheaves

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None of the above

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The wire rope is subjected to

Tensile Stress

Bending Stress

Both bending and tensile stress

None of the above

Correct Answer : Both bending and tensile stress

Explanation : There is direct tensile stress due to load being raised as well as bending stress.