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Machine Design

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

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

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Machine Design
A locking device extensively used in marine type connecting rod ends is a

Jam nut
Ring nut
Castle nut
Sawn nut

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Machine Design
The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub)

d/4
d/8
d/6
d/2

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Machine Design
A circular shaft can transmit a torque of 5 kN-m. If the torque is reduced to 4 kN-m, then the maximum value of bending moment that can be applied to the shaft is

3 kN-m
4 kN-m
1 kN-m
2 kN-m

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Machine Design
The wire ropes make contact at

Anywhere in the groove of the pulley
Bottom of groove of the pulley
Sides of groove of the pulley
Sides and bottom of groove of the pulley

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Machine Design
The taper on key is given on

On both sides
Any side
Bottom side only
Top side only

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