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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/2
d/4
d/6
d/8

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Machine Design
A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage capacity of shell, then its diameter will be

(6V/ π)2
(6V/ π)1/3
(6V/ π)3
(6V/ π)1/2

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Machine Design
A backing ring is used inside the pipe joint when making a

Sleeve weld
Socket weld
Butt weld
Fillet weld

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Machine Design
A transmission shaft includes

Over head shaft
Counter shaft
Line shaft
All of these

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Machine Design
When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order to prevent breakage at the

Thread
Head
Shank
Middle

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Machine Design
A flange coupling is used to connect two shafts

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

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