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Machine Design

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

15°
25°
5°
8°

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Machine Design
Which of the following key is preferred for the condition when a large amount of impact type torque is to be transmitted in both direction of rotation?

Gib-head key
Woodruff key
Feather key
Tangent key

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Machine Design
The included angle in unified of American National threads is

60°
55°
47°
29°

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Machine Design
When a nut is tightened by placing a washer below it, the bolt will be subjected to following type of loads

Combined loads
Shear
Tension
Compression

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Machine Design
Three different weights fall from a certain height under vacuum. They will take

Times proportional to weight to reach earth
None of these
Same time to reach earth
Times inversely proportional to weight to reach earth

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Machine Design
A spring is used to

Measure forces
All of these
Apply forces
Store energy

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