Strength of Materials - Interview Questions | Exam2Win

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6. The unit of Young's modulus is

A. mm/mm

B. kg/cm

C. kg

D. kg/cm2

E. kg cm2.

Explanation: ANSWER : : kg/cm2 Explanation :

7. Which of the following materials is most elastic

A. rubber

B. plastic

C. brass

D. steel

E. glass.

Explanation: ANSWER : : steel Explanation :

8. If a part is constrained to move and heated, it will develop

A. principal stress

B. tensile stress

C. compressive stress

D. shear stress

E. no stress.

Explanation: ANSWER : : compressive stress Explanation :

9. The ultimate tensile stress of mild steel compared to ultimate compressive stress is

A. same

B. more

C. less

D. more or less depending on other factors

E. unpredictable.

Explanation: ANSWER : : more Explanation :

10. Hooke's law holds good upto

A. yield point

B. limit of proportionality

C. breaking point

D. elastic limit

E. plastic limit.

Explanation: ANSWER : : limit of proportionality Explanation :