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Mechanical Engineering - Machine Design

Exercise : Machine Design - Section 5
16.
A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called
plasticity
elasticity
ductility
malleability
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Crowning on pulley helps
in decreasing the slip of the belt
in increasing the slip of the belt
to keep the belt in centre on a pulley while it is in motion
to increase pulley life
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
The temperature required for full annealing in hyper-eutectoid steel is
50°C above upper critical temperature
50°C below upper critical temperature
50°C above lower critical temperature
50°C below lower critical temperature
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
The effect of key ways on a shaft is to reduce its load carrying capacity and to increase its torsional rigidity.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The efficiency of a riveted joint is equal to
Pt/P
Ps/P
Pc/P
least of Pt, Ps and Pc/P
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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