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Machine Design

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

Equal to
Double
0.5 times
2 times

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Machine Design
The application of third type levers is found in

Lever of a loaded safety valve
A pair of tongs
Hand wheel of a punching press
Handle of a hand pump

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

Any one of the above
Castle nut
Slotted nut
Hexagonal nut

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Machine Design
Guest's theory is used for

Elastic materials
Plastic materials
Brittle materials
Ductile materials

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Machine Design
The condition for maximum power transmission is that the maximum tension in the flat belt should be equal to(Where, Pc = tension in belt due to centrifugal force)

3 Pc
Pc/3
1 Pc
2 Pc

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Machine Design
The resultant axial load on a bolt depends upon

External load applied
Initial tension due to tightening of the bolt
Relative elastic yielding of the bolt and the connected members
All of these

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