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Engineering
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ME Set-1
Machine Design
352

Machine Design MCQ with Answers

352) A tap bolt has

threads for the nut at one end and head at the other end

head at one end and the other end fits into a tapped hole of one of the parts to be fastened

threads at both ends

pointed threads

Answer is:

head at one end and the other end fits into a tapped hole of one of the parts to be fastened

Machine Design MCQ with Answers

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353) According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by

equating tearing resistance of the plate to the shearing resistance of the rivets

equating tearing resistance of the plate to the crushing resistance of the rivets

equating shearing resistance to the crushing resistance of the rivets

none of the above

Answer is:

equating shearing resistance to the crushing resistance of the rivets

354) A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing.

partially

fully

neglected

none of these

Answer is:

partially

355) The fatigue stress concentration factor is defined as

the ratio of endurance limit with stress concentration to the endurance limit without stress concentration

the ratio of endurance limit without stress concentration to the endurance limit with stress concentration

the product of the endurance limits with and without stress concentration

all of the above

Answer is:

the ratio of endurance limit without stress concentration to the endurance limit with stress concentration

356) A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, The junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cy

3.6 N/mm² compression

3.6 N/mm² tension

7.2 N/mm² compression

7.2 N/mm² tension

Answer is:

7.2 N/mm² compression

Machine Design MCQ with Answers

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352) A tap bolt has

head at one end and the other end fits into a tapped hole of one of the parts to be fastened

Machine Design MCQ with Answers

Related Machine Design MCQ with Answers

353) According to I.B.R., when the thickness of the boiler shell (t) is less than 8 mm, then the diameter of the rivet hole (d) is obtained by

equating shearing resistance to the crushing resistance of the rivets

354) A sliding bearing in which although lubricant is present, the working surfaces __________ contact each other at least part of the time, is called boundary lubricated bearing.

partially

355) The fatigue stress concentration factor is defined as

the ratio of endurance limit without stress concentration to the endurance limit with stress concentration

356) A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, The junction radius is 60 mm and the junction pressure is 1.1 N/mm2. The maximum hoop stress developed in the inner cy

7.2 N/mm2 compression

Machine Design MCQ with Answers

356) A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder on to the other cylinder, The junction radius is 60 mm and the junction pressure is 1.1 N/mm². The maximum hoop stress developed in the inner cy

7.2 N/mm² compression