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Machine Design

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

8
4
6
2

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Machine Design
A steel containing _________ 0.8% carbon is known as hypo-eutectoid steel.

Greater than
Equal to
Less than
None of these

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Machine Design
Guest's theory of failure is applicable for following type of materials

Elastic
Ductile
Plastic
Brittle

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Machine Design
The rolling contact bearings as compared to sliding contact bearings have

Accuracy of shaft alignment
Low starting and low running friction except at very high speeds
All of these
Small overall dimensions

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Machine Design
The ultimate strength of steel in tension in comparison to shear is in the ratio of

0.085416666666667
0.084027777777778
0.12638888888889
0.042361111111111

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Machine Design
A coupling used to connect two perfectly aligned shafts, is

Muff coupling
Flange coupling
All of these
Compression coupling

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