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Machine Design

Machine Design
In a flange coupling, the bolts are subjected to

None of these
Shear stress
Tensile stress
Compressive stress

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

None of these
Thrice
Half
Twice

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Machine Design
The constant factor in case of R10 series of preferred numbers is

1.26
1.06
1.58
1.12

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Machine Design
The cam follower generally used in automobile engines is

Knife edge follower
Flat faced follower
Roller follower
Spherical faced follower

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Machine Design
The gears are termed as medium velocity gears, if their peripheral velocity is

1-3 m/s
3-15 m/s
15-30 m/s
30-50 m/s

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Machine Design
Shaft coupling is used in machinery to

All of these
Introduce protection against over loads
Reduce the transmission of shock loads
Introduce mechanical flexibility

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