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Machine Design

Machine Design
The endurance limit for a mirror polished material will be __________ as compared to unpolished material.

More
Same
None of these
Less

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Machine Design
In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as

None of these
Pressure angle
Helix angle
Pitch lead angle

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Machine Design
Fabric belts are used in industrial applications because

They can work at high temperature
None of these
They are unaffected by moisture and humidity
They are cheap

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Machine Design
Two shafts will have equal strength, if

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

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Machine Design
The wear load should be __________ the dynamic load.

Greater than
Equal to
None of these
Less than

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Machine Design
For a shaft diameter of 100 mm, the number of bolts in a flange coupling should be

4
6
10
8

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