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Machine Design

Machine Design
The ratio of circumferential stress to longitudinal stress in a thin cylinder subjected to an internal pressure is

4
1
43832
2

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Machine Design
For low and moderate speed engines, the cam follower should move with

Uniform velocity
Simple harmonic motion
Cycloidal motion
Uniform acceleration and retardation

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Machine Design
The ultimate strength of steel in tension in comparison to shear is in the ratio of

0.042361111111111
0.085416666666667
0.12638888888889
0.084027777777778

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Machine Design
When an open coiled helical compression spring is subjected to an axial compressive load, the stress induced in the wire is

Compressive stress
Shear stress
Bending stress
Tensile stress

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Machine Design
If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to

1.25 × diameter of bolt
Diameter of bolt
1.5 × diameter of bolt
0.75 × diameter of bolt

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Machine Design
When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus.

15 times
10 times
5 times
20 times

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