Explore topic-wise MCQs in Electrical Engineering.

This section includes 1232 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.

1101.

a garin boundary is a transition region which represents _

A. imperfectio ns in arrengement of atoms
B. foreign atom located in th region
C. region with unique crystal structure
D. none of the above
Answer» B. foreign atom located in th region
Discussion
1102.

in a given material adjacent grains will have

A. same crystal structure
B. different crystal
C. same crystal structure
D. a or b
Answer» E.
Discussion
1103.

a garin boundary represents

A. one dimensional defect
B. zero dimensional defect
C. two dimenstiona l defect
D. none of the above
Answer» D. none of the above
Discussion
1104.

the is defect that causes sepeartion of grain

A. grain boundary
B. twin boundary
C. stacking faults
D. none of the above
Answer» B. twin boundary
Discussion
1105.

the surface defects are introduced in the material during of material

A. solidificatio n
B. heat treatment
C. plastic deformation
D. all of the above
Answer» E.
Discussion
1106.

surafec defects are associated with

A. defects within same crystal structure with different orientation of atomic planes
B. defects within adjacent region consisting of different crystal structure
C. defects within adjacent region consisting of same crystal structure
D. any of the above
Answer» E.
Discussion
1107.

surface defects are

A. one dimensional defect
B. two dimensional defect
C. theree dimensional defect
D. none of the above
Answer» C. theree dimensional defect
Discussion
1108.

linear defects increase and Decrease

A. hardness, electrical conductivity
B. electrical conductivity , hardness
C. hardness, electrical resistance
D. electrical resistance, hardness
Answer» D. electrical resistance, hardness
Discussion
1109.

the magnitude of edge dislocation in a lattice structure can be measured by

A. miller indices
B. burgers vector
C. microscope
D. none of the above
Answer» C. microscope
Discussion
1110.

the magnitude of lattice distortion in edge dislocation si near the dislocation as compared to region away from dislocation

A. constant
B. lower
C. higher
D. varies randomly
Answer» D. varies randomly
Discussion
1111.

burgers vector

A. is a measure of lattice distortion
B. is a measure of lattice distortion and is measured as distance along the close packed directions
C. stacking faults
D. none of the above
Answer» C. stacking faults
Discussion
1112.

a measure of lattice distortion which is measured as a distance along the close packed directions

A. burgers vector
B. barbas vector
C. any one of above
D. none of the above
Answer» B. barbas vector
Discussion
1113.

the linear defects are introduced in the material during _ of material

A. solidificatio n
B. heat treatment
C. plastic deformation
D. all of the above
Answer» E.
Discussion
1114.

the defect associated with addition / missing / misalighnment of a series of atoms from its designated posiiton is called as

A. point defect
B. linear defect
C. surface defect
D. none of the above
Answer» C. surface defect
Discussion
1115.

point defect increase and decrease

A. hardness, electrical conductivity
B. electrical conductivity , hardness
C. hardness, electrical resistance
D. electrical resistance, hardness
Answer» B. electrical conductivity , hardness
Discussion
1116.

if an anion and cation are absent in pair the defect is known as

A. schottky
B. vacancy
C. substitution al
D. frenkel
Answer» B. vacancy
Discussion
1117.

Frenkel defect is associated with

A. vacancy and self interstitial defect
B. vacancy and substitution al defect
C. substitution al and self intestitial defect
D. none of the above
Answer» B. vacancy and substitution al defect
Discussion
1118.

substitutional impurity defect is associated with

A. atom leaves its posiiton and locates in the interstitial sites
B. foreign atom occupies the lattice posiiton of regular atomic structure
C. foreign atom occupies the interstitial sites
D. missing of an atom from its designated position
Answer» C. foreign atom occupies the interstitial sites
Discussion
1119.

when any atom occupies the interstitial position of material increases

A. strength
B. hardness
C. both of the above
D. none of the above
Answer» B. hardness
Discussion
1120.

any atom when leaves its position and occupies the interstitial sites is called as

A. slf interstitial
B. interstitial
C. both of the above
D. none of the above
Answer» B. interstitial
Discussion
1121.

vacancy defect is assocoated with

A. atom leaves its position and locates in the interstitial sites
B. missing of an atom from its designated position
C. foreign atom occupies the interstitial sites
D. both a and b
Answer» E.
Discussion
1122.

atoms are bonded with each other through               bond

A. covalent
B. ionic
C. both a and b
D. a or b
Answer» E.
Discussion
1123.

the bonding between atoms breaks due to the

A. reduction in energy possesed by them
B. increase in energy possesed by them
C. chemical reaction
D. none of the above
Answer» C. chemical reaction
Discussion
1124.

lattice vibration affects the                    properties of material

A. electrical
B. magnetic
C. thermal
D. all of the above
Answer» E.
Discussion
1125.

which of the following is a type of surface defect ?

A. dislocation
B. low angle grain boundary
C. schottky
D. both b and c
Answer» C. schottky
Discussion
1126.

which of the following defect is not surface defect ?

A. dislocation
B. low angle grain boundary
C. schottky
D. both b and c
Answer» E.
Discussion
1127.

which of the following is line defect ?

A. dislocation
B. low angle grain boundary
C. schottky
D. both b and c
Answer» B. low angle grain boundary
Discussion
1128.

whioch of the following is not line defect ?

A. dislocation
B. low angle grain boundary
C. schottky
D. both b and c
Answer» E.
Discussion
1129.

surface defects includes

A. edge and screw dislocation
B. edge dislocations and grain boundaries
C. grain boundaries, twin boundaries, lattice vibrations
D. grain boundaries, twin boundaries, low angle boundary
Answer» E.
Discussion
1130.

line defects include

A. edge and screw dislocation
B. edge dislocations and grain boundaries
C. screw dislocations and stacking faults
D. vacancy, substitution al, interstitial
Answer» B. edge dislocations and grain boundaries
Discussion
1131.

point defects include

A. vacancy, substitution al, edge dislocations
B. substitution al, edge dislocation, grain boundaries
C. substitution al, edge dislocation ,stacking faults
D. vacancy, substitution al, interstitial defects
Answer» E.
Discussion
1132.

vacancy, self interstitial, substitutional are all types of

A. line defects
B. surface defects
C. voliume defects
D. point defects
Answer» E.
Discussion
1133.

the effect of imperfections in crystal struture can be

A. desirable
B. adverse
C. both a or b
D. none of the above
Answer» D. none of the above
Discussion
1134.

the imperfection sin crystal structure influence the of materials

A. electrical conductivity
B. density
C. strength
D. all of the above
Answer» E.
Discussion
1135.

imperfections are introduced during

A. plastic deformation
B. metal forming
C. heat treatment
D. all of the above
Answer» E.
Discussion
1136.

the mechanical property of material depends on

A. size
B. weight
C. crystal structure
D. none of the above
Answer» D. none of the above
Discussion
1137.

due to change in mechanical properties of the material can be changed

A. color
B. shape
C. imperfectio ns
D. none of the above
Answer» D. none of the above
Discussion
1138.

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
Answer» C. perfect, non repetitive
Discussion
1139.

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
Answer» E.
Discussion
1140.

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
Answer» C. iat has face atom shared by consecutive two faces
Discussion
1141.

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
Answer» E.
Discussion
1142.

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
Answer» B. it has no central atom
Discussion
1143.

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
Answer» B. it has no central atom
Discussion
1144.

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
Answer» C. 0.74, 0.68, 0.52
Discussion
1145.

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
Answer» E.
Discussion
1146.

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
Answer» E.
Discussion
1147.

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
Answer» C. 0.74, 0.68, 0.52
Discussion
1148.

Lead has crystal structure

A. simple cubic
B. body centred
C. face centred
D. hexagonal close packed
Answer» D. hexagonal close packed
Discussion
1149.

Cadmium has crystal structure

A. simple cubic
B. body centred
C. face centred
D. hexagonal close packed
Answer» E.
Discussion
1150.

Cobalt has crystal structure

A. simple cubic
B. body centred
C. face centred
D. hexagonal close packed
Answer» E.
Discussion