Q.1
A circular rod of diamm and length 200mm is extended to 0.09mm length and 0.diameters through a tensile force. What will be its Poissons ratio?
  • c) 0.32
  • d) 0.33
  • a) 0.30
  • b) 0.31
Q.2
The Poissons ratio of a material is 0.what will be the ratio of Youngs modulus to bulk modulus?
  • a) 1.4
  • b) 1.2
  • c) 0.8
  • d) 0.6
Q.3
What is the bulk modulus of elasticity?
  • a) The ratio of shear stress to shear strain
  • b) The ratio of direct stress to direct strain
  • c) The ratio of volumetric stress to volumetric strain
  • d) The ratio of direct stress to volumetric strain
Q.4
For a material, Youngs modulus is given as 1.2 xand Poissons ratio 1/Calculate the bulk modulus.
  • a) 0.7 x 105
  • b) 0.8 x 105
  • c) 1.2 x 105
  • d) 1.2 x 105
Q.5
Determine the Poissons ratio and bulk modulus of a material, for which Youngs modulus is 1.2 and modulus of rigidity is 4.8.
  • a) 7
  • b) 8
  • c) 9
  • d) 10
Q.6
The Youngs modulus of elasticity of a material is 2.5 times its modulus of rigidity. Then what will be its Poissons ratio?
  • a) 0.25
  • b) 0.33
  • c) 0.50
  • d) 0.60
Q.7
How the elastic constants E and K are related?
  • a) E = 2K(1 – 2μ)
  • b) E = 3K(1 – 2μ)
  • c) E = 2K(1 – μ)
  • d) E = K(1 – 2μ)
Q.8
How many elastic constants does an isotropic, homogeneous and linearly elastic material have?
  • a) 1
  • b) 2
  • c) 3
  • d) 4
Q.9
The modulus of rigidity and the modulus of elasticity of a material areGPa andGPa. What will be the Poissons ratio of the material?
  • a) 0.25
  • b) 0.30
  • c) 0.40
  • d) 0.50
Q.10
Which of the following is true if the value of Poisson’s ratio is zero?
  • a) The material is rigid
  • b) The material is perfectly plastic
  • c) The longitudinal strain in the material is infinite
  • d) There is no longitudinal strain in the material
0 h : 0 m : 1 s