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Machine Design

Machine Design
In order to have smooth operation, the minimum number of teeth on the smaller sprocket, for moderate speeds, should be

17
21
25
15

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Machine Design
The diameter of knuckle pin in a knuckle joint is usually taken as (where d = Diameter of the rod)

0.8 d
d
0.5 d
1.2 d

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Machine Design
In a marine flange coupling, the thickness of flange is taken as

d/3
d/2
3d/4
d/4

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Machine Design
The design calculations for members subject to fluctuating loads with the same factor of safety, yield the most conservative estimates when using

Soderberg relation
Gerber relation
None of these
Goodman relation

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Machine Design
Auto frettage is the method of

Joining thick cylinders
Increasing the life of thick cylinders
Pre-stressing thick cylinders
Calculating stresses in thick cylinders

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Machine Design
Multiple threads are used to secure

High mechanical advantage
High efficiency
High load lifting capacity
Low efficiency

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