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Machine Design

Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

43869
43929
44047
44045

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Machine Design
The gears are termed as medium velocity gears, if their peripheral velocity is

1-3 m/s
3-15 m/s
15-30 m/s
30-50 m/s

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Machine Design
In static loading, stress concentration is more serious in

Brittle materials
Elastic materials
Ductile materials
Brittle as well as ductile materials

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Machine Design
The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is

0.1 micron
1 micron
0.01 micron
10 microns

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Machine Design
The yield point in static loading is __________ as compared to fatigue loading.

None of these
Same
Lower
Higher

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Machine Design
For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately

0.4 times
0.7 times
0.6 times
0.8 times

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