The possible value of Poisson's ratio is

1. 1                                       

2. 0.9

3. 0.8                                     

4. 0.4

There is no change in the volume of a wire due to change in its length on stretching. The Poisson's ratio of the material of the wire is

1. + 0.50                               

2.  – 0.50

3.  0.25                                  

4.  – 0.25

A cylindrical wire of radius 1 mm, length 1m, Young's modulus $=2\times {10}^{11}<mspace\; width="1em"></mspace>\mathrm{N}/{\mathrm{m}}^2$, poisson's ratio $\mathrm{\mu }=\mathrm{\pi }/10$ is stretched by a force of 100 N. Its radius will become?

1.  0.99998 mm

2.  0.99999 mm

3.  0.99997 mm

4.  0.99995 mm

Which of the following relation is true?

1.  $3\mathrm{Y}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>\mathrm{k}\left(1<mspace\; width="1em"></mspace>-<mspace\; width="1em"></mspace>\mathrm{\sigma }\right)<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>$

2.  $\mathrm{K}<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>\frac{9\mathrm{\eta Y}}{\mathrm{Y}<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>\mathrm{\eta }}<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>$

3.  $\mathrm{\sigma }<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>\left(6\mathrm{K}<mspace\; width="1em"></mspace>+<mspace\; width="1em"></mspace>\mathrm{\eta }\right)\mathrm{Y}<mspace\; width="1em"></mspace><mspace\; width="1em"></mspace>$

4.  $\mathrm{\sigma }<mspace\; width="1em"></mspace>=<mspace\; width="1em"></mspace>\frac{0.5<mspace\; width="1em"></mspace>\mathrm{Y}<mspace\; width="1em"></mspace>-<mspace\; width="1em"></mspace>\mathrm{\eta }}{\mathrm{\eta }}$

Practically range of Possion’s ratio $\mathrm{\sigma }$ is

1. 0.5 to 1

2. –1 to 0.5

3. 0 to 0.5

4. –0.5 to 0

The Poisson ratio cannot have value

(1) 0.7

(2) 0.2

(3) 0.1

(4) 0.5

If Young modulus (Y) equal to bulk modulus (B). Then the Poisson ratio is :

1. $\frac{1}{3}$

2. $\frac{2}{3}$

3. $\frac{1}{2}$

4. $\frac{1}{4}$

What is the value of Poisson's ratio for an incompressible material?

(1) Zero

(2) 0.2

(3) 0.5

(4) Infinite

If the Poisson's ratio of a material is 0.5, then its bulk modulus is equal to:

(1) Zero

(2) Young's modulus

(3) Infinite

(4) Three times Young's modulus

The value of Poisson's ratio cannot be:

(1) 0.05

(2) 0.32

(3) 0.63

(4) 0.49