Strength of Materials MCQ Question with Answer

Strength of Materials MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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/cm²

Question No : 14
Euler's formula holds good only for

Short columns

Long columns

Both short and long columns

Weak columns