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Machine Design

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

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

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Machine Design
The centre distance between two meshing involute gears is equal to

Difference of base circle radii/cosφ
Sum of base circle radii/cosφ
Sum of pitch circle radii/cosφ
Difference of pitch circle radii/cosφ

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Machine Design
A screw is specified by its

Major diameter
Minor diameter
Pitch diameter
Pitch

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Machine Design
A column of length l is fixed at both ends. The equivalent length of the column is

l
l/√2
2 l
l/2

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Machine Design
When a load W is applied suddenly on a bar of cross-sectional area A, the stress induced in the bar will be

W/2A
2W/A
W/A
3W/A

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Machine Design
In nitrated parts, the origins of the fatigue cracks will occur at

Just below the surface
None of these
Surface
Within the core

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