Stress Concentration MCQ

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

• The effect of the stress riser is much more pronounced in a brittle material than a ductile material. Which of the following is not the correct explanation for this behavior?
  ক

  Strain hardening occurs in ductile material, which increases the required stress for the flow of crack

  খ

  Strain hardening does not occur in a brittle material, so it results in sudden propagation of the crack

  গ

  Redistribution of stress does not occur in a brittle material

  ঘ

  The toughness of brittle material is much more than ductile material
• The following diagram shows a rectangular plate with a circular hole at the ends. The dimension of the plate is shown in the figure. If the ratio of r/h increase, the stress concentration factor Kt will ______________
  ক

  increase

  খ

  decrease

  গ

  remain constant

  ঘ

  cannot comment
• The following diagram shows a rectangular plate with a circular hole at the ends. The dimension of the plate is shown in the figure. If the ratio of b/r increase, the stress concentration factor Kt will __________
  ক

  increase

  খ

  decrease

  গ

  remain constant

  ঘ

  cannot comment
• The value of stress concentration for circular hole in a plate subjected to uniform stress of σ is equal to ________
  ক

  1

  খ

  4

  গ

  3

  ঘ

  10
• In addition to producing the stress concentration, a notch also creates a localized condition of the biaxial or triaxial stress.
  ক

  True

  খ

  False
• The stress concentration is generally expressed by a theoretical stress-concentration factor kt. Generally, Kt is described as the ratio of _________________
  ক

  σmax / σmin

  খ

  σmin/ σmax

  গ

  σmax/σnominal

  ঘ

  σnominal/σmax
• A geometrical discontinuity in a body, such as a hole or a notch result in nonuniform distribution of stress at the vicinity of discontinuity. At the region near the discontinuity, the local stress will be higher than normal stress distribution.
  ক

  True

  খ

  False