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Machine Design

Machine Design
The suitable material for belt used in flour mill is

Canvas or cotton duck
Leather
Rubber
Balata gum

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Machine Design
The bearings of heavy series have capacity __________ over the medium series.

30 to 40%
40 to 50%
10 to 20%
20 to 30%

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Machine Design
The application of third type levers is found in

Handle of a hand pump
Lever of a loaded safety valve
A pair of tongs
Hand wheel of a punching press

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Machine Design
If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value?

Maximum shear stress theory
Maximum principal stress theory
Maximum distortion energy theory
Maximum strain energy theory

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Machine Design
A locking device in which the bottom cylindrical portion is recessed to receive the tip of the locking set screw, is called

Jam nut
Sawn nut
Castle nut
Ring nut

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Machine Design
A connecting rod should be

Strong in buckling about Y-axis
Strong in buckling about X-axis
Equally strong in buckling about X-axis and Y-axis
Any one of the above

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