Strength of Materials - Interview Questions | Exam2Win

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11. Young's modulus is defined as the ratio of

A. volumetric stress and volumetric strain

B. lateral stress and lateral strain

C. longitudinal stress and longitudinal strain

D. shear stress to shear strain

E. longitudinal stress and lateral strain.

Explanation: ANSWER : : longitudinal stress and longitudinal strain Explanation :

12. The Young's modulus of a wire is defined as the stress which will increase the length of wire compared to its original length

A. half

B. same amount

C. double

D. one-fourth

E. four times.

Explanation: ANSWER : : same amount Explanation :

13. The impact strength of a material is an index of its

A. toughness

B. tensile strength

C. capability of being cold worked

D. hardness

E. fatigue strength.

Explanation: ANSWER : : toughness Explanation :

14. Tensile strength of a material is obtained by dividing the maximum load during the test by the

A. area at the time of fracture

B. original cross-sectional area

C. average of (a) and (b)

D. minimum area after fracture

E. none of the above.

Explanation: ANSWER : : original cross-sectional area Explanation :

15. Which of the following has no unit

A. kinematic viscosity

B. surface tension

C. bulk modulus

D. strain

E. elasticity.

Explanation: ANSWER : : strain Explanation :