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Machine Design

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

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

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Machine Design
According to I.B.R., the factor of safety of riveted joint should not be less than

3
2
4
1

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Machine Design
A steel containing 0.8% carbon is known as

Hypo-eutectoid steel
None of these
Hypereutectoid steel
Eutectoid steel

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

Same
None of these
Lower
Higher

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Machine Design
A spring of stiffness 1000 N/m is stretched initially by 100 mm from the undeformed position. The work required to stretch it by another 100 mm is

10 N-m
5 N-m
7 N-m
15 N-m

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Machine Design
For general industrial machinery, the ratio of the length of journal to its diameter is taken as

5 to 10
3 to 5
1 to 2
0.5 to 1

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