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Machine Design

Machine Design
The usual proportion for the width of key is (where d = Diameter of shaft or diameter of hole in the hub)

d/6
d/8
d/4
d/2

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Machine Design
In designing a connecting rod, it is considered like __________ for buckling about X-axis.

Both ends fixed
One end fixed and the other end hinged
One end fixed and the other end free
Both ends hinged

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Machine Design
The endurance limit for a mirror polished material will be __________ as compared to unpolished material.

Same
More
Less
None of these

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Machine Design
Which of the following is a permanent fastening?

Bolts
Cotters
Keys
Rivets

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Machine Design
The bending stress in a curved beam is

Maximum at the neutral axis
None of these
Zero at the centroidal axis
Zero at the point other than centroidal axis

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Machine Design
For steel, the ultimate strength in shear as compared to ultimate strength in tension is

43864
43834
43832
43833

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