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Machine Design

Machine Design
A locking device extensively used in automobile industry is a

Ring nut
Sawn nut
Jam nut
Castle nut

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Machine Design
The width of the pulley should be __________ width of the belt.

Equal to
Less than
Greater than
None of these

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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)

3 d
2 d
5 d
4 d

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Machine Design
When the pulley or other mating piece is required to slide along the shaft, a __________ sunk key is used.

Rectangular
Square
None of these
Parallel

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Machine Design
Which of the following coupling is used to connect two shafts which have both lateral and angular misalignment?

All of these
Universal coupling
Bushed pin type coupling
Oldham coupling

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Machine Design
The helix angle for double helical gears may be made up to

90°
45°
60°
75°

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