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Machine Design

Machine Design
In order to permit the thermal expansion/contraction of tubing, it should be

Honed
Flared
Bent
Crimped

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Machine Design
Soderberg relation is based on __________ of the material whereas all other failure relation for dynamic loading are based on ultimate strength of the material.

None of these
Shear strength
Yield strength
Elastic strength

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Machine Design
The radial distance of a tooth from the pitch circle to the top of the tooth is called

Dedendum
Clearance
Working depth
Addendum

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Machine Design
An open coiled helical compression spring 'A' of mean diameter 50 mm is subjected to an axial load ‘W’. Another spring 'B' of mean diameter 25 mm is similar to spring 'A' in all respects. The deflection of spring 'B' will be __________ as compared to spring 'A'.

One-half
Double
One-fourth
One-eighth

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Machine Design
The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be

Same in both cases
4 times more
2 times more
3 times more

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Machine Design
The power transmitted by means of a belt depends upon

All of these
Velocity of the belt
Tension under which the belt is placed on the pulleys
Arc of contact between the belt and the smaller pulley

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