# Strength of Materials

## The limit of eccentricity for no tensile condition for a column of circular section of diameter

A.d / 4 B.d / 8 C.d / 12 D.d / 16

## Lame’s theory is associated with

A.thin cylindrical shells B.thick cylindrical shells C.direct and bending stresses D.none of these

## In a thick cylindrical shell subjected to an internal pressure (p), the tangential stress across the thickness of a cylinder is

A.maximum at the outer surface and minimum at the inner surface B.maximum at the inner surface and minimum at the outer surface C.maximum at the outer surface and zero at the inner surface D.maximum at the inner surface and zero at the outer surface

## In a thick cylindrical shell subjected to an internal pressure (p), the radial stress across the thickness of a cylinder is

A.maximum at the outer surface and minimum at the inner surface B.maximum at the inner surface and minimum at the outer surface C.maximum at the outer surface and zero at the inner surface D.maximum at the inner surface and zero at the outer surface

## In a thick cylindrical shell subjected to an internal pressure (p), the tangential stress is always a tensile stress where as the radial stress is a compressive stress

A.Correct B.Incorrect undefined undefined

## In a thick cylindrical shell subjected to an internal pressure (p), the maximum radial stress at the inner surface of the shell is

A.zero B.p (tensile) C.? p (compressive) D.2 p (tensile)

## The maximum tangential stress in a thick cylindrical shell is always

A.equal to B.less than C.greater than undefined

## A thick pressure vessel is always used for the generation of steam, as it can withstand high pressures.

A.True B.False undefined undefined

## When a column is subjected to an eccentric load, the stress induced in the column will be

A.direct stress only B.bending stress only C.shear stress only D.direct and bending stress both

## If the diameter of pressure vessel is 15 times the wall thickness, the vessel is said to be a thick shell.

A.Agree B.Disagree undefined undefined