Stress and Strain MCQ

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

• Which of the following is found out by calculating the area under the stress strain graph?
  ক

  Toughness

  খ

  Hardness

  গ

  Endurance

  ঘ

  Strength
• Greater the angle of inclination of the stress strain curve less is the elasticity.
  ক

  True

  খ

  False
• Stress strain curve for cemented tungsten carbide is:
  ক

  Hyperbola

  খ

  Parabola

  গ

  A curve

  ঘ

  Straight line
• If the Poisson’s ratio is given as 0.3 and the Young’s modulus is given to 7e10. What will be the value for shear modulus?
  ক

  2.69e10 N/m2

  খ

  3.00e10 N/m2

  গ

  2.59e10 N/m2

  ঘ

  2.72e10 N/m2
• Which of the following can be the value of Poisson’s ratio for an engineering structure?
  ক

  2

  খ

  0.4

  গ

  29

  ঘ

  100
• Given the shear modulus(G) for aluminum as 2.4e+10 N/m2 and the shear strain is given as 6e-5. What is the value for shear stress?
  ক

  13.4e+5 N/m2

  খ

  14.4e+5 N/m2

  গ

  12.4e+5 N/m2

  ঘ

  13.4e-5 N/m2
• Which of the following relation is stated by Hooke’s law?
  ক

  Stress is directly proportional to strain

  খ

  Stress is inversely proportional to strain

  গ

  Stress is directly proportional to square of strain

  ঘ

  Stress is inversely proportional to square of strain
• Strain is a dimensionless quantity.
  ক

  True

  খ

  False
• What is the unit for stress?
  ক

  N/m2

  খ

  Nm2

  গ

  N/m

  ঘ

  Nm
• Up to which point on the stress-strain curve is Hooke’s law valid?
  ক

  Elastic limit

  খ

  Yield point

  গ

  Proportionality limit

  ঘ

  Fracture point
• A body of weight mg is hanging on a string that extends in length by l. The work done in extending the string is ___________
  ক

  mgl

  খ

  mgl/2

  গ

  2mgl

  ঘ

  0
• Which of the following have well defined geometrical external shapes?
  ক

  Amorphous solids

  খ

  Liquids

  গ

  Gases

  ঘ

  Crystalline solids
• The term liquid crystal refers to a state that is intermediate between ___________
  ক

  Crystalline solid and amorphous liquid

  খ

  Crystalline solid and vapour

  গ

  Amorphous liquid and its vapour

  ঘ

  A crystal immersed in a liquid
• A wire fixed at the upper end stretches by length l by applying a force F. What is the work done in stretching?
  ক

  F/2l

  খ

  Fl

  গ

  2Fl

  ঘ

  Fl/2
• A given quantity if an ideal gas is at pressure P and absolute temperature T. What is the isothermal bulk modulus of the gas?
  ক

  2P/3

  খ

  P

  গ

  3P/2

  ঘ

  2P
• No material is perfectly elastic.
  ক

  True

  খ

  False
• An example of a perfectly plastic body is ___________
  ক

  Quartz

  খ

  Crystal

  গ

  Putty

  ঘ

  Rubber
• Amorphous solids are true solids.
  ক

  True

  খ

  False
• Two wires have the same material and have the same volume. However wire 1 had cross sectional area A and wire 2 has cross sectional area 3A. If the length of wire 1 increases by ∆x on applying force F, how much force is needed to stretch wire 2 by the same amount?
  ক

  F

  খ

  4F

  গ

  6F

  ঘ

  9F
• If the stress is S and the Young’s modulus is Y of material of a wire, the energy stored in the wire per unit volume is?
  ক

  2Y/S

  খ

  S/2Y

  গ

  2S2 Y

  ঘ

  S2/ 2Y