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Machine Design

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
4 d
2 d

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Machine Design
Which of the following property is essential for spring materials?

Stiffness
Resilience
Ductility
Plasticity

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Machine Design
The edges of a boiler plate are bevelled to an angle of

30°
45°
80°
60°

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Machine Design
The rocker arms in internal combustion engines are of__________.

First type levers
Second type levers
Third type levers
None of these

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Machine Design
The distribution of the forces along the length of key fitted in a shaft

Is uniform throughout
Varies exponentially, being less near the torque-input end
Varies exponentially, being more near the torque-input end
Varies linearly

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Machine Design
The strength of a riveted joint is equal to

Least value of Pt Ps and Pc
Shearing strength of rivet (Ps)
Tearing strength of plate (Pt)
Crushing strength of rivet (Pc)

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