Top 1000+ Solved Material Science MCQ Questions Answer
Q. Carbon diffuses in Fe, this is type ofimpurity
a. substitution al
b. interstitial
c. both a & b
d. none of the above
Q. Cold working process is carried out on……….. Recrystallisation temp.
a. equal
b. above
c. below
d. none of the above
Q. Crystal structure is arrangement ofin different patterns
a. electrons
b. protons
c. atoms
d. crystals
Q. Crystallographic planes are represented by 3 numbers enclosed in
a. {} bracket
b. [ ] square bracket
c. ( ) raound bracket
d. none of the above
Q. crystallography is study of
a. pattern formation of electrons
b. patterns formation of protons
c. different pattern formation of atoms
d. none of the above
Q. Cu diffuses in FCC Ni, this is type ofimpurity
a. substitution al
b. interstitial
c. both a & b
d. none of the above
Q. Decrease in free energy during recovery is attributed to
a. excess point defects
b. excess dislocations
c. grain boundaries
d. all
Q. Decrease in free energy during recrystallization is attributed to
a. excess point defects
b. excess dislocations
c. grain boundaries
d. all
Q. Deformation of steel at room temperature is
a. hot working
b. cold working
c. both a and b
d. can’t say
Q. Density of material depends on …..
a. no.of atoms/unit cell
b. atomic packing factor
c. coordinatio n number
d. both a&b