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Machine Design

Machine Design
The following type of nut is used with alien bolt

Any one of the above
Castle nut
Hexagonal nut
Slotted nut

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Machine Design
When the bearing is subjected to large fluctuations of load and heavy impacts, the bearing characteristic number should be _________ the bearing modulus.

15 times
5 times
20 times
10 times

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Machine Design
A screw is specified by its

Major diameter
Minor diameter
Pitch diameter
Pitch

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Machine Design
The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to

T/2
1 T
4 T
2 T

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Machine Design
When a metal or alloy is cold worked,

Both (A) and (B)
It is worked below recrystallization temperature
Its hardness and strength increases
None of these

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Machine Design
When a load W is applied suddenly on a bar of cross-sectional area A, the stress induced in the bar will be

3W/A
W/2A
W/A
2W/A

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