** Question No : 8**

Modulus of rigidity is defined as the ratio of

Longitudinal stress to longitudinal strain

Volumetric stress to volumetric strain

Lateral stress to Lateral strain

Shear stress to shear strain

** Question No : 9**

The strain energy stored in a body due to suddenly applied load compared to when it is applied gradually is

Same

Twice

Four times

Eight times

** Question No : 10**

Which of the following is a proper sequence?

Proportional limit, elastic limit, yielding, failure

Elastic limit, proportional limit, yielding, failure

Yielding, proportional limit, elastic limit, failure

None of the above

** Question No : 11**

Strain is equal to (where l = Original length, and δl = Change in length)

l/δl

δl/l

l.δl

l + δl

** Question No : 12**

The bending stress in a beam is _________ section modulus.

Inversely proportional to two times

Directly proportional to

Inversely proportional to

None of these

** Question No : 13**

The unit of Young's modulus is

mm/mm

kg/cm

Kg

kg/cm²

** Question No : 14**

Euler's formula holds good only for

Short columns

Long columns

Both short and long columns

Weak columns