Strain Energy and Resilience MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Strain Energy and Resilience, a fundamental topic in the field of Mechanics of Materials. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Strain Energy and Resilience MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Strain Energy and Resilience mcq questions that explore various aspects of Strain Energy and Resilience problems. Each MCQ is crafted to challenge your understanding of Strain Energy and Resilience principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Mechanics of Materials tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Strain Energy and Resilience MCQs are your pathway to success in mastering this essential Mechanics of Materials topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Strain Energy and Resilience. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

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Strain Energy and Resilience MCQs | Page 3 of 6

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Q21.
A 1m long bar of uniform section extends 1mm under limiting axial stress of 200N/mm². What is the modulus of resilience for the bar?

a.

0.1 units

b.

1 units

c.

10units

d.

100units

Discuss
Answer: (a).0.1 units
Q22.
A square steel bar of 10mm side and 5m length is subjected to a load whereupon it absorbs a strain energy of 100J. what is its modulus of resilience?

a.

1/5 N-mm/mm³

b.

25 N-mm/mm³

c.

1/25 N-mm/mm³

d.

5 N-mm/mm³

Discuss
Answer: (a).1/5 N-mm/mm³
Q23.
What is the relation between maximum stress induced due to sudden loading to maximum stress the gradual loading?

a.

Maximum stress in sudden load is equal to the maximum stress in gradual load

b.

Maximum stress in sudden load is half to the maximum stress in gradual load

c.

Maximum stress in sudden load is twice to the maximum stress in gradual load

d.

Maximum stress in sudden load is four times to the maximum stress in gradual load

Discuss
Answer: (c).Maximum stress in sudden load is twice to the maximum stress in gradual load
Q24.
What is the strain energy stored in a body when the load is applied suddenly?

a.

σE/V

b.

σE²/V

c.

σV²/E

d.

σV²/2E

Discuss
Answer: (d).σV²/2E
Q25.
A tensile load of 60kN is suddenly applied to a circular bar of 4cm diameter. What will be the maximum instantaneous stress induced?

a.

95.493 N/mm²

b.

45.25 N/mm²

c.

85.64 N/mm²

d.

102.45 N/mm²

Discuss
Answer: (a).95.493 N/mm²
Q26.
A tensile load of 60kN is suddenly applied to a circular bar of 4cm and 5m length. What will be the strain energy absorbed by the rod if E=2×10⁵ N/mm²?

a.

140.5 N-m

b.

100 N-m

c.

197.45 N-m

d.

143.2 N-m

Discuss
Answer: (d).143.2 N-m
Q27.
A tensile load of 100kN is suddenly applied to a rectangular bar of dimension 2cmx4cm. What will be the instantaneous stress in bar?

a.

100 N/mm²

b.

120 N/mm²

c.

150 N/mm²

d.

250 N/mm²

Discuss
Answer: (d).250 N/mm²
Q28.
2 tensile load of 100kN is suddenly applied to a rectangular bar of dimension 2cmx4cm and length of 5m. What will be the strain energy absorbed in the bar if E=1×10⁵ N/mm²?

a.

312.5 N-m

b.

314500 N-mm

c.

1250 N-m

d.

634 N-m

Discuss
Answer: (c).1250 N-m
Q29.
A steel rod is 2m long and 50mm in diameter. A axial pull of 100kN is suddenly applied to the rod. What will be the instantaneous stress induced in the rod?

a.

101.89 N/mm²

b.

94.25 N/mm²

c.

130.45 N/mm²

d.

178.63 N/mm²

Discuss
Answer: (a).101.89 N/mm²
Q30.
A steel rod is 2m long and 50mm in diameter. An axial pull of 100kN is suddenly applied to the rod. What will be the instantaneous elongation produced in the rod if E=22GN/m²?

a.

0.0097 mm

b.

1.0754 mm

c.

1.6354 mm

d.

1.0186 mm

Discuss
Answer: (d).1.0186 mm
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