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Machine Design

Machine Design
The number of slots in a 25 mm castle nut is

6
2
4
8

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Machine Design
A hollow shaft will transmit a __________ torque than a solid shaft of the same mass and same material.

Greater
Smaller
None of these
Medium

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Machine Design
The helix angle for single helical gears ranges from

20° to 35°
15° to 20°
35° to 50°
10° to 15°

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Machine Design
Idler pulley is used for

All of these
For applying tension
Changing the direction of motion of belt
Increasing velocity ratio

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Machine Design
The root angle of a bevel gear is equal to

Pitch angle + dedendum angle
Pitch angle + addendum angle
Pitch angle - addendum angle
Pitch angle - dedendum angle

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Machine Design
In the levers of __________ type, the mechanical advantage is less than one.

None of these
First
Third
Second

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