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Machine Design

Machine Design
If a spring is cut down into two springs, the stiffness of cut springs will be

Half
None of these
Same
Double

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Machine Design
According to Indian standards, the diameter of rivet hole is made larger than the basic size of rivet by

1 mm for rivet diameter from 27 mm to 36 mm
All of these
0.5 mm up to rivet diameter of 24 mm
2 mm for rivet diameter from 39 mm to 48 mm

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Machine Design
All stresses produced in a belt are

Tensile stresses
Both tensile and compressive stresses
Shear stresses
Compressive stresses

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Machine Design
The velocity factor for ordinary cut gears operating at velocities up to 12.5 m/s is equal to

0.75/(0.75 + √v)
4.5/(4.5 + v)
3/(3 + v)
6/(6 + v)

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Machine Design
Creep in belt is due to

Uneven extensions and contractions due to varying tension
All of these
Material of the pulley
Material of the belt

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Machine Design
When a close coiled helical spring is compressed, its wire is subjected to

All of these
Shear
Compression
Tension

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MORE MCQ ON Machine Design

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