Imperfections in solids

Vacancy defects in solids is a sub type of __________

• Point imperfections

• Line imperfections

• Volume imperfections

• Surface imperfections

Substitution of a foreign atom in the site of parent atom in the crystal is a________________?

• Vacancy defect

• Substitution impurity

• Volume imperfections

• Stacking Defect

Edge dislocation imperfection is a sub type of _____________

• Point imperfections

• Line imperfections

• Volume imperfections

• Surface imperfections

Displacement of an ion from regular location to interstitial location is known as ____________

• Vacancy defect

• Line imperfection

• Schottky’s defect

• Frenkel defect

When a pair of cation and anion are missing in a crystal, it is called ____________.

• Vacancy defect

• Line imperfection

• Schottky’s defect

• Frenkel defect

Which one of the following is not a zero-dimensional defect?

• Vacancy defect

• Substitution imperfection

• Schottky’s defect

• Screw dislocation

Twin or Twinning is a category of ________.

• Point imperfections

• Line imperfections

• Volume imperfections

• Surface imperfections

As the grain size of a metal increases, its strength ________.

• Decreases

• Increases

• Remains constant

• No effect of grain size on strength

As the grain size of a metal increases, its ductility ________.

• Decreases

• Increases

• Remains constant

• No effect of grain size on ductility

Phenomenon of cross slip occurs in ________.

• Point imperfections

• Line imperfections

• Volume imperfections

• Surface imperfections