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Machine Design

Machine Design
In worm gears, the pressure angle is __________ the angle between two inclined faces in axial plane.

Twice
Half
None of these
Thrice

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Machine Design
The objective of caulking in a riveted joint is to make the joint

Free from corrosion
Free from stress
Leak-proof
Stronger in tension

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Machine Design
The material commonly used for machine tool bodies is

Mild steel
Cast iron
Aluminium
Brass

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Machine Design
Which of the following bearing is preferred for oscillating conditions?

Taper roller bearing
Needle roller bearing
Angular contact single row ball bearing
Double row roller bearing

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Machine Design
Oldham coupling is used to connect two shafts

Whose axes intersect at a small angle
Which are not in exact alignment
Which have lateral misalignment
Which are perfectly aligned

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Machine Design
Three different weights fall from a certain height under vacuum. They will take

Same time to reach earth
Times proportional to weight to reach earth
Times inversely proportional to weight to reach earth
None of these

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