Slip by Dislocation Movement MCQ

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

• The Peierls stress (stress required to move the dislocation) will be least in which type of crystal element?
  ক

  Covalent compound

  খ

  Metallic compound

  গ

  Ionic compound

  ঘ

  Intermetallic compound
• The force required to move a dislocation is known as ____________
  ক

  peierls-nabarro force

  খ

  hearing-nabarro force

  গ

  drag force

  ঘ

  frictional force
• Theoretical shear strength of metal range in _______
  ক

  GPa

  খ

  MPa

  গ

  KPa

  ঘ

  Pa
• The theoretical shear strength of perfect crystal is approximately equal to ___________
  ক

  G/2π

  খ

  G/4π

  গ

  2πG

  ঘ

  G
• Which of the following is not a reason for the wavy appearance Slip lines in bcc metals?
  ক

  The slip occurs on several planes, (110), (112), (123) but always in the close-packed (111) direction

  খ

  Dislocations can readily move from one type of plane to another by cross sip

  গ

  Higher shearing stresses are required to cross-slip

  ঘ

  The ductile nature of BCC causes wavy nature
• What is closed packed direction body-centered cubic system?
  ক

  <111>

  খ

  <110>

  গ

  <100>

  ঘ

  <122>
• In the face-centered cubic structure, the (111) octahedral planes and the (110) directions are the close-packed systems. What is the total number of possible slip system in FCC?
  ক

  8

  খ

  12

  গ

  48

  ঘ

  16
• The closed packed plane and close packed direction of hexagonal closed packed structure is _________ and _____________ respectively.
  ক

  (0001) and <1120>

  খ

  (0112) and <0001>

  গ

  (1120) and <1120>

  ঘ

  (0012) and <1212>