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Machine Design

Machine Design
When a material is subjected to fatigue loading, the ratio of the endurance limit to the ultimate tensile strength is

0.2
0.65
0.5
0.35

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Machine Design
While designing a screw in a screw jack against buckling failure, the end conditions for the screw are taken as

Both the ends fixed
Both the ends hinged
One end fixed and the other end hinged
One end fixed and the other end free

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Machine Design
The value of Lewis form factor used in design of gears is

Independent of size of teeth
All of these
Dependent on number of teeth of a gear
Dependent on system of teeth

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Machine Design
The design of the pressure vessel is based on

Hoop stress
Longitudinal and hoop stress
Longitudinal stress
None of these

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Machine Design
In worm gears, the pressure angle is __________ the angle between two inclined faces in axial plane.

None of these
Thrice
Twice
Half

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

None of these
Greater
Medium
Smaller

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