Strength of Materials - Interview Questions | Exam2Win

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21. True stress-strain curve for materials is plotted between

A. load/original cross-sectional area and change in length/original length

B. load/instantaneous cross-sectional area original area and log.

C. load/instantaneous cross-sectional area and change in length/original length

D. load/instantaneous area and instantaneous area/original area

E. none of the above.

Explanation: ANSWER : : load/instantaneous cross-sectional area original area and log. Explanation :

22. Which is the false statement about true stress-strain method

A. It does not exist

B. It is more sensitive to changes in both metallurgical and mechanical conditions

C. It gives, a more accurate picture of the ductility

D. It can be correlated with stress-strain values in other tests like torsion, impact, combined stress tests etc.

E. It can be used for compression tests as well.

Explanation: ANSWER : : It does not exist Explanation :

23. It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called

A. internal resistance

B. tensile stress

C. transverse stress

D. compressive stress

E. working stress.

Explanation: ANSWER : : tensile stress Explanation :

24. In a tensile test on mild steel specimen, the breaking stress as compared to ultimate tensile stress is

A. more

B. less

C. same

D. more/less depending on composition

E. may have any value.

Explanation: ANSWER : : less Explanation :