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Machine Design

Machine Design
In a butt welded joint, the size of weld is __________ the throat of weld.

Double
0.5 times
Equal to
2 times

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Machine Design
According to Indian standards, total numbers of fundamental deviations are

25
15
10
20

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Machine Design
If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by

p/ZN
ZN/p
N/Zp
Z/pN

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Machine Design
The endurance limit of a material with finished surface in comparison to rough surface is

More
Same
Less
More or less depending on quantum of load

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Machine Design
In a belt drive, if the pulley diameter is doubled keeping the tension and belt width constant, then it will be necessary to

Increase the key depth
Increase the key width
Decrease the key length
Increase the key length

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

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

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