Machine Design
The temperature at which the new grains are formed in the metal is known as

Recrystallization temperature
None of these
Lower critical temperature
Upper critical temperature

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

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Machine Design
Slenderness ratio is the ratio of

Maximum size of column to minimum size of column
Effective length of column to least radius of gyration of the column
Width of column to depth of column
Effective length of column to width of column

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