Stiffness MCQ

Test your knowledge with important Stiffness MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Stiffness MCQs on Bissoy. Bissoy App

• With an increase in temperature, elastic modulus of metals ____ and stiffness ____
  ক

  increases, increases

  খ

  increases, decreases

  গ

  decreases, increases

  ঘ

  decreases, decreases
• Which statement is true regarding stiffer?
  ক

  A longer spring is stiffer

  খ

  A spring with thin wire is stiffer

  গ

  Copper wire spring is stiffer than steel wire spring

  ঘ

  A spring with a smaller diameter of coils is stiffer
• A stiff material is always of high strength.
  ক

  True

  খ

  False
• Increasing the stiffness of material diminishes its impact strength.
  ক

  True

  খ

  False
• Stiffness and strength of polymer ___ with an increase in the degree of crystallinity.
  ক

  increases

  খ

  decreases

  গ

  remains constant

  ঘ

  varies showing no relation to the degree of crystallinity
• Plasticizers in polymers ___ toughness and ____ stiffness.
  ক

  increase, increase

  খ

  increase, decrease

  গ

  decrease, increase

  ঘ

  decrease, decrease
• How can stiffness of material be improved?
  ক

  By increasing the cross-sectional area

  খ

  By decreasing the cross-sectional area

  গ

  By increasing temperature

  ঘ

  By increasing the length of spring
• What is the SI unit of stiffness?
  ক

  N/m

  খ

  N/m

  গ

  Nm2

  ঘ

  N
• A material’s resistance to elastic deflection is known as ___
  ক

  stiffness

  খ

  toughness

  গ

  hardness

  ঘ

  elasticity
• What is the inverse of stiffness?
  ক

  Hardness

  খ

  Stress

  গ

  Flexibility

  ঘ

  Toughness