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Machine Design

Machine Design
Crushing resistance required to crush the rivet per pitch length is

p.d.σc
n.d.t.σc
p.t.σc
(p - d) t.σc

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Machine Design
In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft)

3 d
5 d
2 d
4 d

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Machine Design
For a shaft diameter of 100 mm, the number of bolts in a flange coupling should be

6
8
4
10

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Machine Design
When a bolt is subjected to an external load, the stress induced in the bolt will be

Combined tensile and shear stress
Tensile stress
Shear stress
Any one of these

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Machine Design
When a beam of rectangular cross-section of width b and depth d, is subjected to a shear force F, the maximum shear stress induced will be

3F/2bh
4F/bh
F/bh
2F/bh

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Machine Design
If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to

Diameter of bolt
1.5 × diameter of bolt
1.25 × diameter of bolt
0.75 × diameter of bolt

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