Linear Defects MCQ

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

• Which of the following can be theoretical shear stress produced in metals? ( GPa stands for Giga pascal)
  ক

  10 GPa

  খ

  32 GPa

  গ

  2 GPa

  ঘ

  50 GPa
• What are the dislocation in which the line direction and Burgers vector are neither perpendicular nor parallel?
  ক

  Screw dislocation

  খ

  Edge dislocation

  গ

  Jog dislocation

  ঘ

  Mixed dislocation
• Which of the following dislocation can glide but not climb?
  ক

  Screw dislocation

  খ

  Edge dislocation

  গ

  Jog dislocation

  ঘ

  Mixed dislocation
• Which of the following is fields are present for screw dislocation?
  ক

  Tensile

  খ

  Compressive

  গ

  Shear stress

  ঘ

  Strain
• Which of the following is fields are not present for edge dislocation?
  ক

  Tensile

  খ

  Compressive

  গ

  Shear stress

  ঘ

  Strain
• In an edge dislocation, a helical path is traced around the dislocation line.
  ক

  True

  খ

  False
• In which type of dislocation planes are displaced relative to each other through shear?
  ক

  Edge dislocation

  খ

  Screw dislocation

  গ

  Jog dislocation

  ঘ

  Mixed dislocation
• To determine yield strength of a material which of the following needn’t be affected?
  ক

  Solute hardening

  খ

  Precipitation hardening

  গ

  Work hardening

  ঘ

  Martensic transformation
• What is the difference between the angle of Burgers vector and dislocation line in edge dislocation and screw dislocation?
  ক

  -90 degrees

  খ

  0 degrees

  গ

  45 degrees

  ঘ

  90 degrees
• In which type of dislocation an extra plane is inserted inside the crystal?
  ক

  Edge dislocation

  খ

  Screw dislocation

  গ

  Jog dislocation

  ঘ

  Mixed dislocation
• Edge dislocation and skew dislocation are linear crystalline defects.
  ক

  True

  খ

  False
• Which type of defect are line defects?
  ক

  One-dimensional defect

  খ

  Zero-dimensional defect

  গ

  Two-dimensional defect

  ঘ

  Three-dimensional defect
• What is the mechanism in which edge dislocation move out of the slip is called _______
  ক

  Climb dislocation

  খ

  Screw dislocation

  গ

  Shear dislocation
• Which type(s) of dislocation are included in mixed dislocation?
  ক

  Only Edge dislocation

  খ

  Only shear dislocation

  গ

  Only screw dislocation
• Which type of stress is involved in the motion of screw dislocation?
  ক

  Tensile stress

  খ

  Shear stress

  গ

  Compressive stress
• Which type of deformation occurs due to dislocation?
  ক

  Slip plastic deformation

  খ

  Elastic deformation

  গ

  It does not show deformation
• Path of screw dislocation is in the form of _______
  ক

  Circular

  খ

  Cylindrical

  গ

  Spiral or helical
• Which technique is used to observe dislocation?
  ক

  Positron annihilation technique

  খ

  Thermal imaging

  গ

  Thermal expansion measurements
• What type of direction will the burger vector of dislocation for a metallic material show?
  ক

  Closed-packed crystallographic direction

  খ

  Rounded-packed crystallographic direction

  গ

  Open-packed crystallographic direction
• What is the relative orientation of dislocation lines for edge dislocation?
  ক

  Parallel

  খ

  Perpendicular

  গ

  Circular
• The magnitude and direction of lattice distortion are expressed in terms of which vector?
  ক

  Dislocation vector

  খ

  Screw vector

  গ

  Edge vector
• A dissolution in which an extra portion of a plane of atoms or a half plane terminates within a crystal is called as ________
  ক

  Edge dislocation

  খ

  Mixed dislocation

  গ

  Interfacial dislocation