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Strength of Materials - Interview Questions and Answers

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16. For steel, the ultimate strength in shear as compared to in tension is nearly
A. same
B. half
C. one-third
D. two-third
E. one-fourth.
Explanation: ANSWER : : half Explanation :
17. The materials having same elastic properties in all directions are called
A. ideal materials
B. uniform materials
C. isotropic materials
D. practical materials
E. elastic materials.
Explanation: ANSWER : : isotropic materials Explanation :
18. Percentage reduction of area in performing tensile test on cast iron may be of the order of
A. 50%
B. 25%
C. 0%
D. 15%
E. 60%.
Explanation: ANSWER : : 0% Explanation :
19. If the radius of wire stretched by a load is doubled, then its Young's modulus will be
A. doubled
B. halved
C. become four times
D. become one-fourth
E. remain unaffected.
Explanation: ANSWER : : remain unaffected. Explanation :
20. During a tensile test on a specimen of 1 cm cross-section, maximum load observed was 8 tonnes and area of cross-section at neck was 0.5 cm2. Ultimate tensile strength of specimen is
A. 4 tonnes/cm2
B. 8 tonnes/cm2
C. 16 tonnes/cm2
D. 22 tonnes/cm2
E. none of the above.
Explanation: ANSWER : : 8 tonnes/cm2 Explanation :
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