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Machine Design

Machine Design
A riveted joint is a __________ fastening.

None of these
Permanent
Temporary
Either A or B

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Machine Design
A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is

2100 N-m
2000 N-m
2136 N-m
2050 N-m

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

180°
120°
270°
360°

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Machine Design
A flange coupling is used to connect two shafts

Have lateral misalignment
Which are perfectly aligned
Whose axes intersect at a small angle
Which are not in exact alignment

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Machine Design
Which of the following is a permanent fastening?

Bolts
Rivets
Keys
Cotters

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Machine Design
The number of slots in a 25 mm castle nut is

2
6
4
8

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