Machine Design MCQ with Answers

Machine Design MCQ with Answers

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

Answer is:

one-third

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

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.

Answer is:

Correct

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

Answer is:

decreasing its shank diameter

425) A lap joint is always in single shear.

Answer is:

Yes

A lap joint is always in single shear.

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