Top 1000+ Solved Material Science MCQ Questions Answer
Q. screw dislocations have burger vectorfor dislocation line
a. perpendicul ar
b. parallel
c. inclined
d. first perpendicul ar then parallel
Q. screw dislocations includes
a. tension lattice strain
b. compression lattice strain
c. shear lattice strain
d. all
Q. Sharp break in dislocation line that is in slip plane .
a. jog
b. kink
c. either jog or kink
d. none
Q. Slip systems having two types one is glide& another one is
a. climb
b. slip
c. twinns
d. none of the above
Q. Square brackets are used to represent crystallographic
a. point location
b. direction
c. plane
d. none of the above
Q. Stacking fault energies are in the range of
a. 0.01-0.1j/m2
b. 0.01-0.1j/cm2
c. 0.1-10 j/m2
d. 0.1-10 j/m2
Q. Temp. required for cold working is
a. above 100°c
b. below 100°c
c. below recrystalliza tion
d. above recrystalliza tion
Q. Temp. required for hot working is
a. above 100°c
b. below 100°c
c. below recrystalliza tion
d. above recrystalliza tion
Q. The arrangement of multiple unit cells together is called
a. crystal structure
b. unit cell
c. lattice constant
d. lattice angle