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Machine Design

Machine Design
In a flange coupling, the flanges are coupled together by means of

Bolts and nuts
Studs
Headless taper bolts
None of these

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Machine Design
The resilience of a bolt may be increased by

Increasing its shank diameter
Decreasing its shank diameter
Increasing its length
Decreasing its length

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Machine Design
When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus.

10 times
20 times
15 times
5 times

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Machine Design
According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be

45 to 60%
63 to 70%
70 to 83%
80 to 90%

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Machine Design
In a full journal bearing, the angle of contact of the bearing with the journal is

270°
120°
180°
360°

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Machine Design
In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set in order to

Reduce vibration
Ensure uniform loading
Ensure proper alignment
Reduce slip

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