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Engineering
Mechanical
ME Set-1
Machine Design
300

Machine Design MCQ with Answers

300) In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction angle.

larger than

smaller than

equal to

none of these

Answer is:

smaller than

Machine Design MCQ with Answers

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301) While designing a screw in a screw jack against buckling failure, the end conditions for the screw are taken as

both the ends fixed

both the ends hinged

one end fixed and the other end hinged

one end fixed and the other end free

Answer is:

one end fixed and the other end free

302) When a closely coiled helical spring is subjected to a couple about its axis, the stress induced in the wire material of the spring is

bending stress only

a combination of torsional shear stress and bending

direct shear stress only

a combination of bending stress and direct shear stress

Answer is:

bending stress only

303) In a journal bearing, the load on the bearing is __________ to the axis of the journal.

parallel

perpendicular

linear

none of these

Answer is:

perpendicular

In a journal bearing, the load on the bearing is __________ to the axis of the journal.

304) An imaginary circle which by pure rolling action gives the same motion as the actual gear, is called

addendum circle

dedendum circle

pitch circle

clearance circle

Answer is:

pitch circle

Machine Design MCQ with Answers

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300) In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction angle.

smaller than

Machine Design MCQ with Answers

Related Machine Design MCQ with Answers

301) While designing a screw in a screw jack against buckling failure, the end conditions for the screw are taken as

one end fixed and the other end free

302) When a closely coiled helical spring is subjected to a couple about its axis, the stress induced in the wire material of the spring is

bending stress only

303) In a journal bearing, the load on the bearing is __________ to the axis of the journal.

perpendicular

304) An imaginary circle which by pure rolling action gives the same motion as the actual gear, is called

pitch circle

Machine Design MCQ with Answers