1232 + Mcqs in Material Science Page 24 McqOptions

1151.	Silver has crystal structure
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» D. hexagonal close packed

Discussion

1152.	Tungsten has crystal structure
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» C. face centred

Discussion

1153.	Î± - Fe has crystal structure
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» C. face centred

Discussion

1154.	Molybdenum has crystal structure
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» C. face centred

Discussion

1155.	Copper has crystal structure
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» D. hexagonal close packed

Discussion

1156.	Zinc has crystal structure
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» E.

Discussion

1157.	Magnesium has crystal structure
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» E.

Discussion

1158.	Aluminum has crystal structure
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» D. hexagonal close packed

Discussion

1159.	Chromium has crystal structure
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» C. face centred

Discussion

1160.	the examples of hexagonal close packed crystal structure are
A.	cr, mo. fe, ta, w
B.	al, cu, ag, au, ni
C.	mg, cd, zn, co, be
D.	none of the above
Answer» B. al, cu, ag, au, ni

Discussion

1161.	the examples of face centred cubic structure are
A.	cr, mo. fe, ta, w
B.	al, cu, ag, au, ni
C.	mg, cd, zn, co, be
D.	none of the above
Answer» D. none of the above

Discussion

1162.	the examples of body centred cubic structure are
A.	cr, mo. fe, ta, w
B.	al, cu, ag, au, ni
C.	mg, cd, zn, co, be
D.	none of the above
Answer» B. al, cu, ag, au, ni

Discussion

1163.	the examples of simple cubic crystal structure are
A.	cr, mo. fe, ta, w
B.	al, cu, ag, au, ni
C.	mg, cd, zn, co, be
D.	none of the above
Answer» E.

Discussion

1164.	the average packing factor for hexagonal close packed crystal structure is given as
A.	0.52
B.	0.68
C.	0.74
D.	0.85
Answer» D. 0.85

Discussion

1165.	in a crystal structure, the average number of atoms per unit cell is 6
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» E.

Discussion

1166.	the coordination number for a hexagonal close packed crystal structure is given as
A.	6
B.	8
C.	12
D.	14
Answer» D. 14

Discussion

1167.	in a hexagonal close packed crystal structure, there is number of center atoms
A.	1
B.	4
C.	8
D.	3
Answer» E.

Discussion

1168.	in a hexagonal close packed crystal structure, the average number of atoms per unit cell is
A.	1
B.	2
C.	4
D.	6
Answer» E.

Discussion

1169.	in a hexagonal close packed crystal structure, there is number of corner atoms
A.	1
B.	4
C.	8
D.	12
Answer» E.

Discussion

1170.	the coordination number for a face centred crystal structure is given by
A.	6
B.	8
C.	12
D.	14
Answer» D. 14

Discussion

1171.	in a hexagonal close packed crystal structure, there is number of
A.	2
B.	4
C.	8
D.	6
Answer» B. 4

Discussion

1172.	the average packing factor for face centred crystal structure is given as
A.	0.52
B.	0.68
C.	0.74
D.	0.85
Answer» D. 0.85

Discussion

1173.	in a face centred crystal structure, the relationship between lattice constant and radius of atom is given by
A.	r=âˆš3a/4
B.	a=âˆš3r/4
C.	a=r/2âˆš2
D.	r=a/2âˆš2
Answer» E.

Discussion

1174.	in a crystal structure, the average number of atoms per unit cell is 4
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» D. hexagonal close packed

Discussion

1175.	in a face centred crystal structure there is Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â number of corner atoms
A.	1
B.	4
C.	8
Answer» D.

Discussion

1176.	in a face centred crystal structure, the average number of atoms per unit cell is
A.	1
B.	2
C.	4
D.	6
Answer» D. 6

Discussion

1177.	in a face centred crystal structure there is Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â number of face atoms
A.	0
B.	4
C.	8
D.	6
Answer» E.

Discussion

1178.	the coordination number for simple body structure is given as
A.	6
B.	8
C.	12
D.	14
Answer» C. 12

Discussion

1179.	the average packing factor for body centred crystal structure is given as
A.	0.52
B.	0.68
C.	0.74
D.	0.85
Answer» C. 0.74

Discussion

1180.	in body centred crystal structure, the relationship between lattice constant and radius of atom is given by
A.	a=r/2
B.	r=a/2
C.	r=âˆš3a/4
D.	a=âˆš3r/4
Answer» D. a=âˆš3r/4

Discussion

1181.	in a crystal structure, the average number of atoms per unit cell is 2
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal closed pack
Answer» C. face centred

Discussion

1182.	in body centred crystal structure, the average number of atoms per unit cell is
A.	1
B.	2
C.	4
D.	6
Answer» C. 4

Discussion

1183.	in body centred crystal structure, there is Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â number of center atoms
A.	1
B.	4
C.	8
Answer» B. 4

Discussion

1184.	in body centred crystal structure, there is Â Â Â Â Â Â Â Â Â Â Â Â Â Â number of corner atoms
A.	1
B.	4
C.	8
Answer» D.

Discussion

1185.	in simple cubic crystal structure, the relationsheep between lattice constant and radius of atom is given by
A.	a=r/2
B.	r=a/2
C.	r=âˆš3a/4
D.	r=âˆš3r/4
Answer» C. r=âˆš3a/4

Discussion

1186.	the average packing factor for simple cubic crystal is given as
A.	0.52
B.	0.68
C.	0.74
D.	0.85
Answer» B. 0.68

Discussion

1187.	the coordination number for simple cubic structure is given as
A.	6
B.	8
C.	12
D.	14
Answer» B. 8

Discussion

1188.	in simple cubic crystal structure, the average number of atoms per unit cell is
A.	1
B.	2
C.	4
D.	6
Answer» B. 2

Discussion

1189.	in simpleÂ cubicÂ crystal structure there are number of face atom
A.	1
B.	4
C.	8
D.	none of the above
Answer» E.

Discussion

1190.	in a cubic crystal structure, the average number of atoms per unit cell is 1
A.	simple cubic
B.	body centred
C.	face centred
D.	hexagonal close packed
Answer» B. body centred

Discussion

1191.	in simpleÂ cubicÂ crystal structure there are number of corner atoms
A.	1
B.	4
C.	8
Answer» D.

Discussion

1192.	APN is defined as
A.	ratio of volume occupied by atoms in unit cell to volume of unit cell
B.	ratio of volume of unit cell to volume occupied by atoms in unit cell
C.	ratio of volume of unit cell to volume of crystal structure
D.	none of the above
Answer» B. ratio of volume of unit cell to volume occupied by atoms in unit cell

Discussion

1193.	is defined as fraction of volume occupied by atoms in unit cell
A.	ligancy number
B.	average number of atoms per unit cell
C.	atomic packing factor
D.	none of the above
Answer» D. none of the above

Discussion

1194.	a higher value of APN number indicates
A.	bigger size of materials
B.	higher density of materials
C.	higher value of averagge niumber of atoms per unit cell
D.	both b and c
Answer» E.

Discussion

1195.	a higher value of coordination number indicates
A.	bigger size of materials
B.	higher density of materials
C.	lower density of materials
D.	none of the above
Answer» C. lower density of materials

Discussion

1196.	Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â is defined as number of atoms adjacent to and touching a central atoms under consideration
A.	co- ordination number
B.	average number of atoms per unit cell
C.	atomic packing factor
D.	none of the above
Answer» B. average number of atoms per unit cell

Discussion

1197.	co-ordination number is also referred to as
A.	ligancy number
B.	average number of atoms per unit cell
C.	atomic packing factor
D.	none of the above
Answer» B. average number of atoms per unit cell

Discussion

1198.	A higher value of average number of atoms per unit cell indicates
A.	bigger size of materials
B.	higher density of materials
C.	lower density of materials
D.	none of the above
Answer» C. lower density of materials

Discussion

1199.	in cubic crystal structure, the Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â located atom is shared by 8 adjacent unit cells
A.	center
B.	face
C.	corner
D.	none of the above
Answer» D. none of the above

Discussion

1200.	in face centered cubic crystal structure the face atom is shared by adjacent unit cells
A.	1
B.	2
C.	4
D.	8
Answer» C. 4

Discussion

Explore topic-wise MCQs in Electrical Engineering.

Silver has crystal structure

Tungsten has crystal structure

Î± - Fe has crystal structure

Molybdenum has crystal structure

Copper has crystal structure

Zinc has crystal structure

Magnesium has crystal structure

Aluminum has crystal structure

Chromium has crystal structure

the examples of hexagonal close packed crystal structure are

the examples of face centred cubic structure are

the examples of body centred cubic structure are

the examples of simple cubic crystal structure are

the average packing factor for hexagonal close packed crystal structure is given as

in a crystal structure, the average number of atoms per unit cell is 6

the coordination number for a hexagonal close packed crystal structure is given as

in a hexagonal close packed crystal structure, there is number of center atoms

in a hexagonal close packed crystal structure, the average number of atoms per unit cell is

in a hexagonal close packed crystal structure, there is number of corner atoms

the coordination number for a face centred crystal structure is given by

in a hexagonal close packed crystal structure, there is number of

the average packing factor for face centred crystal structure is given as

in a face centred crystal structure, the relationship between lattice constant and radius of atom is given by

in a crystal structure, the average number of atoms per unit cell is 4

in a face centred crystal structure there is Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â number of corner atoms

in a face centred crystal structure, the average number of atoms per unit cell is

in a face centred crystal structure there is Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â number of face atoms

the coordination number for simple body structure is given as

the average packing factor for body centred crystal structure is given as

in body centred crystal structure, the relationship between lattice constant and radius of atom is given by

in a crystal structure, the average number of atoms per unit cell is 2

in body centred crystal structure, the average number of atoms per unit cell is

in body centred crystal structure, there is Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â number of center atoms

in body centred crystal structure, there is Â Â Â Â Â Â Â Â Â Â Â Â Â Â number of corner atoms

in simple cubic crystal structure, the relationsheep between lattice constant and radius of atom is given by

the average packing factor for simple cubic crystal is given as

the coordination number for simple cubic structure is given as

in simple cubic crystal structure, the average number of atoms per unit cell is

in simpleÂ cubicÂ crystal structure there are number of face atom

in a cubic crystal structure, the average number of atoms per unit cell is 1

in simpleÂ cubicÂ crystal structure there are number of corner atoms

APN is defined as

is defined as fraction of volume occupied by atoms in unit cell

a higher value of APN number indicates

a higher value of coordination number indicates

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â is defined as number of atoms adjacent to and touching a central atoms under consideration

co-ordination number is also referred to as

A higher value of average number of atoms per unit cell indicates

in cubic crystal structure, the Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â located atom is shared by 8 adjacent unit cells

in face centered cubic crystal structure the face atom is shared by adjacent unit cells