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Machine Design

Machine Design
For general industrial machinery, the ratio of the length of journal to its diameter is taken as

0.5 to 1
1 to 2
5 to 10
3 to 5

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Machine Design
In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called

Module
Axial pitch
Normal pitch
Diametral pitch

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Machine Design
The resultant axial load on a bolt depends on

All of these
Relative elastic yielding (springness) of the bolt and the connected member
Initial tension
External load applied

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Machine Design
Belt slip may occur due to

All of these
Driving pulley too small
Heavy load
Loose belt

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

43833
43832
43864
43834

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Machine Design
In designing a sleeve coupling, outer diameter of the sleeve is taken as (where d = Diameter of the shaft)

2d + 20 mm
2d + 13 mm
d + 17 mm
3.5d

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