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Machine Design

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
0.6
0.2

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Machine Design
Which of the following is not correct procedure to increase the fatigue limit?

Surface decarburisation
Cold working
Shot peening
Under stressing

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Machine Design
Buttress threads are usually found on

Spindles of bench vices
Screw cutting lathes
Feed mechanisms
Railway carriage couplings

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Machine Design
In a steam engine, the valve rod is connected to an eccentric rod by means of

Knuckle joint
Universal joint
Cotter joint
Flange coupling

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Machine Design
The edges of a boiler plate are bevelled to an angle of

60°
45°
80°
30°

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Machine Design
A connecting rod subjected to an axial load may buckle with

X-axis as neutral axis
Y-axis as neutral axis
X-axis or Y-axis as neutral axis
Z-axis

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