Machine Design
When a metal or alloy is cold worked,

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

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Machine Design
According to Indian standard specifications, 100 H6/g5 means that

Tolerance grade for the hole is 4 to 8 and for the shaft is 3 to 7
Tolerance grade for the shaft is 6 and for the hole is 5
Tolerance grade for the hole is 6 and for the shaft is 5
Tolerance grade for the shaft is 4 to 8 and for the hole is 3 to 7

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Machine Design
In case of thick cylinders, the tangential stress across the thickness of cylinder is

Maximum at the inner surface and zero at the outer surface
Maximum at the inner surface and minimum at the outer surface
Maximum at the outer surface and zero at the inner surface
Maximum at the outer surface and minimum at the inner surface

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Machine Design
Pitch point of a cam is

Any point on the pitch circle
Any point on the pitch curve
A point on the pitch curve having minimum pressure angle
A point on the pitch curve having maximum pressure angle

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Machine Design
In case of V belt drive

The belt should touch the bottom of groove in the pulley
The belt should not touch the bottom of groove in the pulley
The belt should not touch the sides of groove in the pulley
None of these

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