Multiple Choice Questions and Answers On Strength Of Materials And Elasticity

Multiple Choice Questions and Answers On Strength Of Materials And Elasticity

These are the Multiple Choice Questions and Answers On Strength Of Materials And Elasticity:

01. The ratio of the normal applied force to the area of cross section of body is called _____________

02. _________ is the property of the body due to which a body opposes change in its shape or size (or both) when a deforming force acts on it and regains its original shape and size when the external force is removed.
(a) Toughness
(b) Elasticity
(c) Plasticity
(d) Ductility

03. The slope of Stress-Strain Curve, within elastic limits is called ___________


04. Young’s Modulus is defined as the ratio of longitudinal stress to ________________

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05. Within elastic limits, the ratio of lateral strain to the longitudinal strain is called ______________

06. Stress developed within the wire at the time of neck formation when wire breaks is called _____
(a) Yield stress
(b) Breaking stress
(c) Proportional Limit
(d) Permanent Set

07. The internal force in the body which tries to bring the body to its original shape and size is called as ______

Multiple Choice Questions and Answers On Strength Of Materials And Elasticity
Stress and Strain

08. The substances which break just after the elastic limit are known as ________ substances.

09. Bulk modulus is defined as the ratio of _____________ to volume strain.

10. The permanent deformation that remains in the wire on removal of applied load (force, which is more than elastic limit) is called as _______________
(a) dent
(b) deformation
(c) kink
(d) Permanent set

11. What is Modulus of rigidity?

12. __________ is the property of the body, due to which a body opposes change in its shape or size (or both) when a deforming force acts on it and does not regains its original shape and size when the external force is removed.
(a) Toughness
(b) Elasticity
(c) Plasticity
(d) Ductility

13. The materials for which stress and strain variation is not a straight line within elastic limit and strain produced is much larger than the stress applied are known as _____________

14. The ratio of the normal applied force to the entire area of the body is called _______________

15. The work done in stretching a wire by applied force is stored in the form of potential energy. The energy is called _______

16. True or False: The Intermolecular force in a Plastic Body are Large

17. Change in shape or size (or both) of a body due externally applied force is called _____________

18. The ratio of the change in length to the original length of the body is called _______________

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19. True or False: Deforming Force is a vector quantity, while Stress is a scalar quantity.

20. ___________ quantity is a physical quantity which has no specific direction but different values in different direction.

21. True or False: Deforming Force is applied externally, while Stress is developed internallt

22. The internal restoring force per unit area is called ______

23. The maximum stress to which a body can be subjected without permanent deformation is called __________ of that body

24. State Hooke's Law.

Multiple Choice Questions and Answers On Strength Of Materials And Elasticity
Hooke's Law

25. A material body which easily deforms under the action of external deforming force and does not regains its original shape and size when that deforming force is removed is called as ___________

26. The ratio of the change in volume to the original volume of the body is called _________________

27. As per the relationship fill in the blanks:
1. Young's Modulus: It is related to length
2. Bulk Modulus: It is related to volume
3. Modulus of Rigidity: It is related to ________

28. The ratio of the tangentially applied force to the surface area (parallel to force) is called ___________

29. Searle's Method is used to determine _________

30. A point on Stress-Strain curve beyond which wire elongates continuously without addition of any load is called _____

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Answers: Multiple Choice Questions and Answers On Strength Of Materials And Elasticity

01. Tensile Stress or Longitudinal Stress
02. (b) Elasticity
03. Modulus of Elasticity
04. longitudinal strain
05. Poisson's Ratio
06. (b) Breaking stress
07. internal restoring force
08. Brittle
09. volume stress
10. (d) Permanent set
11. It is defined as the ratio of shearing stress to shearing strain.
12. (c) Plasticity
13. Elastomers
14. Volume Stress or Bulk Stress
15. Strain Energy
16. False {They are small}
17. Deformation
18. Tensile Strain or Longitudinal Strain
19. False {Stress is a Tensor Quantity}
20. Tensor
21. True
22. stress
23. Elastic Limit
24. Within elastic limits, stress is directly proportional to strain.
25. Plastic Body
26. Volume Strain or Bulk Strain
27. Shape
28. Shearing Stress or Tangential Stress
29. Young's Modulus
30. Yield Point

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