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Machine Design

Machine Design
The endurance limit for a mirror polished material will be __________ as compared to unpolished material.

Same
None of these
Less
More

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Machine Design
The washer is generally specified by its

Thickness
Hole diameter
Outer diameter
Mean diameter

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Machine Design
If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to

0.5
0.25
0.2
0.6

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Machine Design
The property of a bearing material which has the ability to accommodate small particles of dust, grit etc. without scoring the material of the journal, is called

Fatigue strength
Comformability
Bondability
Embeddability

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Machine Design
Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be

4
8
16
2

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Machine Design
Basic shaft is one

Does not exist
Whose lower as well as upper deviations are zero
Whose lower deviation is zero
Whose upper deviation is zero

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