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Machine Design

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

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

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Machine Design
The radial distance of a tooth from the pitch circle to the top of the tooth is called

Addendum
Working depth
Dedendum
Clearance

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Machine Design
A screw will be self locking, if

Friction angle is equal to helix angle
Efficiency of screw is 100%
Friction angle is less than helix angle
Friction angle is more than helix angle

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Machine Design
The crest diameter of a screw thread is same as

Minor diameter
Core diameter
Major diameter
Pitch diameter

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

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

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Machine Design
The sleeve or muff coupling is designed as a

Thick cylinder
Hollow shaft
Dun cylinder
Solid shaft

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