1. Poisson’s ratio is defined as the ratio of

- Lateral stress and lateral strain
- Lateral strain and longitudinal strain
- Longitudinal stress and lateral stress
- Longitudinal stress and longitudinal strain

2. Identify the correct expression among the following:

- Young’s modulus = Strain/Stress
- Lateral strain = Poisson’s ratio × Longitudinal strain
- Young’s modulus = Strain × Stress
- Lateral strain = Poisson’s ratio/Longitudinal Strain

3. The value of Poisson’s ratio of the materials lies between

- 0 and 1/2
- 1 and 2
- 0 and 1
- 2 and 3

4. Poisson’s ratio is involving

- Elastic Modulus
- Stresses
- Strains
- None of these

5. Poisson Ratio of steel in elastic range is

- 0.4
- 0.5
- 0.2
- 0.3

6. The value of Poisson’s ratio to be zero illustrates that

- the material is rigid.
- the material is perfectly plastic.
- there is no longitudinal strain in the material.
- there is no longitudinal strain in the material is infinite.

7. A bar of diameter 30 mm is subjected to a tensile load such that the measured extension on a gauge length of 200 mm is 0.09 mm and the change in diameter is 0.0045 mm. The Poisson’s ratio will be

- 1/4
- 1/3
- 1/5
- 1/6

8. The Poisson’s ratio for cast-iron varies from

- 0.31 to 0.34
- 0.25 to 0.33
- 0.32 to 0.42
- 0.23 to 0.27
- 0.42 to 0.45

9. For a given material if the Young’s modulus is 200 GN/m^{2} and modulus of rigidity is 80 GN/m^{2}, then the Poisson’s ratio will be

- 0.40
- 0.50
- 0.25
- 0.30

10. Poisson’s ratio is defined as

- stress/strain
- lateral strain/axial strain
- lateral strain/axial strain
- normal strain/shear strain

11. What is the Poisson’s ratio of Ice?

- 0.37
- 0.29
- 0.48
- 0.33

12. For which of the following materials, the poisson’s ratio is expected to be the least?

- Steel
- Cast iron
- Concrete
- Copper

13. A bar of 4 cm diameter is subjected to an axial load of 4T. The extension of the bar over a gauge length of 20 cm is 0.03. The decrease in diameter is 0.0018. The Poisson’s ratio is

- 0.25
- 0.30
- 0.33
- 0.35

14. If the ratio of Young’s modulus to bulk modulus is 1.8, the Poisson’s ratio is

- 0.25
- 0.3
- 0.275
- 0.2

15. If the Poisson’s ratio is 0.3 for a material, the ratio of Young modulus to shear modulus is

- 2.6
- 1.3
- 3.9
- 5.2

16. If the Young’s modulus E is equal to bulk modulus K. What would be the Poisson’s ratio?

- 1/4
- 1/2
- 3/4
- 1/3

17. If the bulk modulus K, and modulus of rigidity G, are given then what will be the Poisson’s ratio.

$\\a.\; \frac{3K-2G}{6K+2G}\\ b.\; \frac{3K+4G}{6K-4G}\\ c.\; \frac{3K-4G}{6K+4G}\\ d.\; \frac{3K+2G}{6K-2G}$

18. If the Poisson’s ratio of a material is 0.25, the ratio of Modulus of Rigidity to Young’s Modulus will be

- 4
- 2.5
- 0.4
- 2

19. The value of Poisson’s ratio for which bulk modulus of a material will be equal to its Young’s modulus

- 0.15
- 0.33
- 0.25
- 0.45

20. If the Young’s modulus of elasticity of a material is twice its modulus of rigidity, then the Poisson’s ratio of the material is

- 0.5
- zero
- -11
- -0.5