Top 1000+ Solved Material Science MCQ Questions Answer
Q. ------- imperfection involves vacancies of pair of ions of opposite charges.
a. vacancy
b. schottky
c. edge
d. none of the above
Q. A linear disturbance of atomic arrangement which can move very easily on the slip plane through the crstal is known as -----.
a. twinning
b. slipping
c. dislocation
d. none of the above
Q. indexong or designation in a unit cell can be done for a particular
a. point location
b. direction
c. plane
d. all of the above
Q. the basis of determining index values for a simple cubic structure is unit cell
a. 2dimensional
b. 3dimensional
c. both a and b
d. none of the above
Q. circular parenthesis symbolically represents
a. crystallogra phic point locations
b. crystaloogra phic directions
c. crystallogra phic planes
d. none of the above
Q. square brackets symbolocally represents crystallographic -
a. crystallogra phic point locations
b. crystaloogra phic directions
c. crystallogra phic planes
d. none of the above
Q. out of the following is used for reprenstation of Miller Indices for a single plane
a. {}
b. []
c. ()
d. none of the above
Q. out of the following is used for reprenstation of Miller Indices for a single direction
a. {}
b. []
c. ()
d. none of the above
Q. in any cubic crustal structure the corner atoms shared by adjacent unit cells
a. 1
b. 2
c. 4
d. 8
Q. The Burger's vectore is at------- to the edge dislocation line.
a. parallel
b. perpendicul a r
c. right angle
d. none of the above
Q. In ------dislocation only shear stress field exists.
a. edge
b. line
c. screw
d. none of the above
Q. ------ slip is process where by a screw dislocation glides into another slip plane having a slip direction in common with the original slip plane.
a. dislocations
b. right angle
c. cross
d. none of the above
Q. -------- dislocation plays an important role in crystal growth.
a. edge
b. point
c. screw
d. none of the above
Q. Non-random alignment of crystals or molecules is known as ----- orientation.
a. grain size
b. atomic
c. perferred
d. none of the above