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Machine Design

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

1.2 d
0.5 d
d
0.8 d

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Machine Design
A transmission shaft includes

Line shaft
Counter shaft
All of these
Over head shaft

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Machine Design
For applications involving high stresses in one direction only the following type of thread would be best suited

ISO metric thread
Square thread
Acme thread
Buttress thread

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Machine Design
The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to(Where, Pc = tension in belt due to centrifugal force)

1 Pc
3 Pc
2 Pc
Pc/3

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Machine Design
I.S. specifies following total number of grades of tolerances

16
18
22
20

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Machine Design
The belt slip occurs due to

Loose belt
Any one of the above
Heavy load
Driving pulley too small

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