Dislocation Climb & Intersection of Dislocation MCQ

Test your knowledge with important Dislocation Climb & Intersection of Dislocation MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Dislocation Climb & Intersection of Dislocation MCQs at Bissoy

• No Diffusion of atom is needed to allow ____________ to move from one plane to another plane.
  ক

  edge dislocation

  খ

  screw dislocation

  গ

  jog

  ঘ

  kink
• Dislocation climb is temperature dependent phenomena and present in both edge and screw dislocation.
  ক

  True

  খ

  False
• The activation for the climb is equal to _____ where; Uj = Activation for nucleation of jog Uv = Activation for formation of the vacancy Um = Activation for formation of the self diffusion Ui = Activation for formation of the interstitial diffusion
  ক

  Uj+Uv+Um

  খ

  Uj

  গ

  Uj+Uv

  ঘ

  Uj+Uv+Um+Ui
• It is commonly observed that climb generate jog in dislocation line because ________
  ক

  dislocation climb creates stress in dislocation line to bend it

  খ

  the extra plane of atoms is highly unlikely to remove from the entire width of dislocation

  গ

  a jog is a form of dislocation climb

  ঘ

  statement is incorrect
• The dislocation climb is least affected by ___________
  ক

  movement of the atom to dislocation

  খ

  movement of vacancy to the dislocation

  গ

  shear stress

  ঘ

  high Temperature
• Which of the following is a non-conservative type of movement of dislocation?
  ক

  The glide of positive edge dislocation on the slip plane

  খ

  The glide of positive edge dislocation on the slip plane

  গ

  The glide of positive screw dislocation on the slip plane

  ঘ

  The climb of an edge dislocation
• A dislocation always feels the attractive force from the surface of the material.
  ক

  True

  খ

  False
• The stacking fault energy of aluminium is 200 mJ m-2. Find the equilibrium spacing between partial dislocation of aluminium. If the shear modulus of the material is 27 GPa and lattice parameter is 3.57 A°.
  ক

  20 A°

  খ

  1000 A°

  গ

  1 A°

  ঘ

  20 micron