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Machine Design

Machine Design
For maximum power, the velocity of the belt will be

√(T/m)
√(T/2m)
None of these
√(T/3m)

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Machine Design
Two shafts will have equal strength, if

Twisting moment of both the shafts is same
Material of both the shafts is same
Angle of twist of both the shafts is same
Diameter of both the shafts is same

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Machine Design
A key made from a cylindrical disc having segmental cross-section, is known as

Feather key
Gib head key
Woodruff key
Flat saddle key

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Machine Design
The resultant axial load on a bolt depends on

All of these
Relative elastic yielding (springness) of the bolt and the connected member
Initial tension
External load applied

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Machine Design
A screw is said to be over hauling screw, if the

Friction angle is less than helix angle
Efficiency of screw is 100%
Friction angle is more than helix angle
Friction angle is equal to helix angle

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Machine Design
In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)

5 d
2 d
4 d
3 d

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