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Machine Design

Machine Design
The shear modulus of resilience is proportional to

(Shear stress)²
Shear stress
(Shear stress)⁴
(Shear stress)3

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Machine Design
For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in tension, if the height of nut (h) is approximately

0.8 times
0.7 times
0.4 times
0.6 times

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Machine Design
The draw of cotter need not exceed

3 mm
20 mm
10 mm
5 mm

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Machine Design
Taper on the cotter and slot is provided

On both the sides
May be provided anywhere
On none of the sides
On one side only

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Machine Design
The shock absorbing capacity of a bolt may be increased by

Increasing its shank diameter
Decreasing its shank diameter
Making the shank diameter equal to core diameter of thread
Tightening the bolt properly

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

p.t.σc
n.d.t.σc
(p - d) t.σc
p.d.σc

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