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Machine Design

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

Slotted nut
Castle nut
Hexagonal nut
Any one of the above

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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.

Three times
Equal to
Four times
Twice

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Machine Design
A tube has the following advantage over pipe

Lighter and easier to handle
All of these
Smoother inside walls
Greater shock absorption

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Machine Design
If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to

1.5 × diameter of bolt
Diameter of bolt
0.75 × diameter of bolt
1.25 × diameter of bolt

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Machine Design
The V-belts are particularly suitable for __________ drives.

Short
Long
None of these
Both A and B

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Machine Design
Oil in journal bearing should be applied at the point where load is

Maximum
Any one of the above
Average
Nil or lightest

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