Top 1000+ Solved Material Science MCQ Questions Answer
Q. Material having cohesive strength shows large plastic deformation
a. high
b. low
c. constant
d. none of the above
Q. Material having CRSS shows large plastic deformation
a. high
b. low
c. constant
d. none of the above
Q. Most polymers are type of materials
a. non- crystalline
b. crystalline
c. both a & b
d. none of the above
Q. The basis of determining index values for a simple structure is unit cell consisting of
a. 2-dimension spatial axes
b. 3-dimensional spatial axes
c. both a & b
d. none of the above
Q. The constant distance between adjacent atoms of unit cell is called as
a. unit cell
b. lattice angle
c. crystal
d. lattice constant
Q. The following mechanism contributes very little the diffusivity
a. vacancy
b. interstitial
c. substitution al
d. self- interstitial
Q. The geometry of unit cell can be completely defined by _ -
a. wt. of unit cell
b. three edge lengths of unit cell ( a,b & c)
c. three interaxial angles of unit cell
d. both b & c
Q. The lattice above the dislocation line is in in negative edge dislocations
a. tension
b. shear
c. compression
d. all
Q. The lattice above the dislocation line is in in positive edge dislocations
a. tension
b. shear
c. compression
d. all
Q. The smallest representation of geometry of crystal structure of a material is called
a. crystal structure
b. crystal lattice
c. unit cell
d. crystal
Q. The study of different pattern formation of atoms is called as
a. metallurgy
b. crystallogra phy
c. physics
d. none of the above
Q. Time dependent permanent deformation is called _.
a. plastic deformation
b. elastic deformation
c. creep
d. anelastic deformation