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Machine Design

Machine Design
The stress in the threaded part of the bolt will be __________ as compared to the shank.

None of these
Same
Lower
Higher

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Machine Design
The bearings of heavy series have capacity __________ over the medium series.

40 to 50%
20 to 30%
30 to 40%
10 to 20%

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Machine Design
If a material fails below its yield point, failure would be due to

Sudden loading
Creep
Straining
Fatigue

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Machine Design
The velocity factor for very accurately cut and ground metallic gears operating at velocities upto __________ are equal to 6/(6 + v).

10 m/s
12.5 m/s
20 m/s
15 m/s

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Machine Design
In Vickers hardness testing, the pyramid indentor apex is

122°
152°
40°
136°

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Machine Design
The pitch diameter is the __________ diameter of an external or internal screw thread.

None of these
Effective
Largest
Smallest

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