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Engineering
Mechanical
ME Set-1
Machine Design
420

Machine Design MCQ with Answers

420) The coefficient of friction between the belt and pulley depends upon the

material of belt and pulley

slip of belt

speed of belt

all of these

Answer is:

all of these

Explanation:

The coefficient of friction between the belt and pulley depends upon the
* material of belt and pulley
* slip of belt
* speed of belt

Machine Design MCQ with Answers

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Related Machine Design MCQ with Answers

421) The allowable static stress for steel gears is approximately __________ of the ultimate tensile stress.

one-fourth

one-third

one-half

double

Answer is:

one-third

422) The pitch diameter is the __________ diameter of an external or internal screw thread.

effective

smallest

largest

none of these

Answer is:

effective

The pitch diameter is the __________ diameter of an external or internal screw thread.

423) When percentage of carbon in steel is increased, the ductility of steel decreases.

Correct

Incorrect

Answer is:

Correct

424) The shock absorbing capacity of a bolt may be increased by

increasing its shank diameter

decreasing its shank diameter

tightening the bolt properly

making the shank diameter equal to core diameter of thread

Answer is:

decreasing its shank diameter

Machine Design MCQ with Answers

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