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Machine Design

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

Bolts and nuts
Headless taper bolts
None of these
Studs

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Machine Design
If two springs are in parallel then their overall stiffness will be

Double
Same
None of these
Half

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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 order to remove internal stresses produced by hardening the steel, the process usually adopted is

Normalizing
Spheroidizing
Annealing
Tempering

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Machine Design
The fatigue life of a part can be improved by

Polishing
Shot peening
Coating
Electroplating

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Machine Design
The velocity of sliding __________ the distance of the point of contact from the pitch point.

Does not depend upon
Is inversely proportional to
Is directly proportional to
Is equal to cos φ multiplied by

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