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Machine Design

Machine Design
Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be

8
2
16
4

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Machine Design
Allen bolts are

Provided with hexagonal depression in head
Designed for shock load
Self locking bolts
Used in aircraft application

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Machine Design
The product of the diametral pitch and circular pitch is equal to

π × number of teeth
π
1
1/π

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Machine Design
In a flat belt drive, if the slip between the driver and belt is 1 %, between the belt and follower is 3% and driver and follower pulley diameters are equal, then velocity ratio of the drive will be

0.98
0.97
0.96
0.99

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Machine Design
The property of a material which enables it to be drawn into wires with the application of a tensile force, is called

Plasticity
Malleability
Ductility
Elasticity

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

Ring nut
Sawn nut
Jam nut
Castle nut

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