Elastic Constants Relationship MCQ

Test your knowledge with important Elastic Constants Relationship MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Elastic Constants Relationship MCQs at Bissoy

• Which of the relationship between E, G and K is true, where E, G and K have their usual meanings?
  ক

  E = 9KC / (3K + C)

  খ

  E = 9KC / (9K + C)

  গ

  E = 3KC / (9K + C)

  ঘ

  E = 3KC / (3K + C)
• What is the relationship between the linear elastic properties Youngs modulus, bulk modulus and rigidity modulus?
  ক

  1/E = 9/k + 3/G

  খ

  9/E = 3/K + 1/G

  গ

  3/E = 9/K + 1/G

  ঘ

  9/E = 1/K + 3/G
• Consider the following statements: X. Two-dimensional stresses applied to a thin plater in its own plane represent the plane stress condition. Y. Normal and shear stresses may occur simultaneously on a plane. Z. Under plane stress condition, the strain in the direction perpendicular to the plane is zero. Which of the above statements are correct?
  ক

  2 only

  খ

  1 and 2

  গ

  2 and 3

  ঘ

  1 and 3
• If a material had a modulus of elasticity of 2.1 kgf/cm2 and a modulus of rigidity of 0.8 kgf/cm2 then what will be the approximate value of the Poissons ratio?
  ক

  0.26

  খ

  0.31

  গ

  0.47

  ঘ

  0.43
• If E,G and K have their usual meanings, for an elastic material, then which one of the following be possibly true?
  ক

  G = 2K

  খ

  G = K

  গ

  K = E

  ঘ

  G = E = K
• Youngs modulus of elasticity and Poissons ratio of a material are 1.25 x 102 MPa and 0.34 respectively. The modulus of rigidity of the material is __________
  ক

  0.9469 MPa

  খ

  0.8375 MPa

  গ

  0.4664 MPa

  ঘ

  0.4025 MPa
• E, G, K and μ elastic modulus, shear modulus, bulk modulus and Poisson’s ratio respectively. To express the stress strain relations completely for this material, at least __________
  ক

  E, G and μmust be known

  খ

  E, K and μmust be known

  গ

  Any two of the four must be known

  ঘ

  All the four must be known
• A rod of length L and diameter D is subjected to a tensile load P. which of the following is sufficient to calculate the resulting change in diameter?
  ক

  Youngs modulus

  খ

  Poissons ratio

  গ

  Shear modulus

  ঘ

  Both Youngs modulus and shear modulus
• The relationship between Youngs modulus E, bulk modulus K if the value of Poissons ratio is unity will be __________
  ক

  E = -3K

  খ

  K = -3E

  গ

  E = 0

  ঘ

  K = 0
• What is the ratio of Youngs modulus E to shear modulus G in terms of Poissons ratio?
  ক

  2(1 + μ)

  খ

  2(1 – μ)

  গ

  1/2 (1 – μ)

  ঘ

  1/2 (1 + μ)
• What is the relationship between modulus of elasticity and modulus of rigidity?
  ক

  C = E / 2(1 + μ)

  খ

  C = E / (1 + μ)

  গ

  C = 2E / (1 + μ)

  ঘ

  C = 2E / 2(1 + μ)
• What is the limiting values of Poisson’s ratio?
  ক

  -1 and 0.5

  খ

  -1 and -0.5

  গ

  -1 and -0.5

  ঘ

  0 and 0.5
• What is the relationship between Youngs modulus E, modulus of rigidity C, and bulk modulus K?
  ক

  E = 9KC / (3K + C)

  খ

  E = 9KC / (9K + C)

  গ

  E = 3KC / (3K + C)

  ঘ

  E = 3KC / (9K + C)
• What is the expression for modulus of rigidity in terms of modulus of elasticity and the Poissons ratio?
  ক

  G = 3E / 2(1 + μ)

  খ

  G = 5E / (1 + μ)

  গ

  G = E / 2(1 + μ)

  ঘ

  G = E/ (1 + 2μ)
• What will be the value of the Poisson’s ratio if the Youngs modulus E is equal to the bulk modulus K?
  ক

  1/2

  খ

  1/4

  গ

  1/3

  ঘ

  3/4
• In an experiment, the bulk modulus of elasticity of a material is twice its modulus of rigidity. The Poissons ratio of the material is ___________
  ক

  1/7

  খ

  2/7

  গ

  3/7

  ঘ

  4/7
• Calculate the modulus of resilience for a 2m long bar which extends 2mm under limiting axial stress of 200 N/mm2?
  ক

  0.01

  খ

  0.20

  গ

  0.10

  ঘ

  0.02
• How can be the Poissons ratio be expressed in terms of bulk modulus(K) and modulus of rigidity(G)?
  ক

  (3K – 4G) / (6K + 4G)

  খ

  (3K + 4G) /( 6K – 4G)

  গ

  (3K – 2G) / (6K + 2G)

  ঘ

  (3K + 2G) / (6K – 2G)
• How many elastic constants of a non homogeneous, non isotropic material will be?
  ক

  9

  খ

  15

  গ

  20

  ঘ

  21
• How many elastic constants of a linear, elastic, isotropic material will be?
  ক

  2

  খ

  3

  গ

  1

  ঘ

  4