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Machine Design

Machine Design
In standard taper roller bearings, the angle of taper of outer raceway is

25°
15°
8°
5°

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Machine Design
The cross-section of the arm of a bell crank lever is

I-section
Any one of these
Rectangular
Elliptical

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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.

5 times
15 times
10 times
20 times

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Machine Design
The tension on the slack side of the belt is __________ the tension on the tight side of the belt.

Equal to
Greater than
None of these
Less than

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Machine Design
Tensile strength of a mild steel specimen can be roughly predicted from following hardness test

None of these
Brinell
Rockwell
Vickers

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Machine Design
Auto frettage is the method of

Calculating stresses in thick cylinders
Increasing the life of thick cylinders
Joining thick cylinders
Pre-stressing thick cylinders

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