Top 1000+ Solved Material Science MCQ Questions Answer
Q. Cadmium has crystal structure
a. simple cubic
b. body centred
c. face centred
d. hexagonal close packed
Q. Cobalt has crystal structure
a. simple cubic
b. body centred
c. face centred
d. hexagonal close packed
Q. the correct order of packing factor for BCC, FCC, HCP is
a. 0.52,0.68,0.74
b. 0.68,0.74,0.74
c. 0.74, 0.68,0.52
d. 0.52,0.68,0.74
Q. the correct order of packing factor for SC, BCC, FCC is
a. 0.74, 0.52,0.68
b. 0.68, 0.74,0.74
c. 0.74, 0.68,0.52
d. 0.52, 0.68,0.74
Q. the correct order of packing factor for FCC, HCP, BCC is
a. 0.52, 0.68,0.74
b. 0.74, 0.74,0.68
c. 0.74, 0.68,0.52
d. 0.52, 0.68,0.74
Q. which of the following is not true for FCC structure
a. it has atomic packing factor of 0.52
b. it has no central atom
c. iat has face atom shared by consecutive two faces
d. none of the above
Q. which of the following is true for FCC structure
a. it has atomic packing factor of 0.74
b. it has no central atom
c. iat has face atom shared by consecutive two faces
d. all of the above
Q. which of the following is true for SC structure
a. it has atomic packing factor of
b. it has no central atom
c. iat has face atom shared by consecutive
d. none of the above
Q. which of the following is not true for SC structure
a. it has atomic packing factor of 0.58
b. it has no central atom
c. iat has face atom shared by consecutive two faces
d. none of the above
Q. which of the following is true for BCC structure
a. it has atomic packing factor of 0.52
b. it has no central atom
c. iat has face atom shared by consecutive two faces
d. none of the above
Q. which of the following is not true for BCC structure
a. it has atomic packing factor of 0.58
b. it has no central atom
c. iat has face atom shared by consecutive two faces
d. none of the above
Q. a crystalline material has atoms in ordered location which is
a. random, non repetitive
b. perfect, repetitive
c. perfect, non repetitive
d. none of the above
Q. the mechanical property of material depends on
a. size
b. weight
c. crystal structure
d. none of the above
Q. one of the following is a corrosive gas, which corrode the metal very fast
a. o2
b. co2
c. h2s
d. all of the above
Q. dehydration means removal of water from the system, to control corrosion . This
a. true
b. false
c. not applicable to
d. none of the above