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Machine Design

Machine Design
The deflection of a cantilever beam under load W is 8. If its width is halved, then the deflection under load W will be

44047
44045
43869
43929

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Machine Design
In order to have a connecting rod equally strong in buckling about X-axis and Y-axis, the moment of inertia about X-axis should be __________ the moment of inertia about Y-axis.

Twice
Three times
Equal to
Four times

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Machine Design
Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft B. The power transmitted by the shaft A will be __________ of shaft B.

Twice
Four times
Sixteen times
Eight times

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Machine Design
The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be

4 times more
3 times more
Same in both cases
2 times more

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Machine Design
For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be

6
4
8
10

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Machine Design
The objective of idler pulley in belt drive is to

Increase the wrap angle and belt tension
All the above objectives
Decrease the tendency of belt to slip
Increase the power transmission capacity

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