Top 1000+ Solved Material Science MCQ Questions Answer
Q. In the simple cubic structure,are direction [100] and plane (100) parellel ?
a. no
b. yes
c. may be
d. none
Q. The capacity of a metal to exhibit cosiderable elastic recovery upon release is known as
a. toughness
b. hardness
c. stiffness
d. resilience
Q. The property of the material which enables the formation of permanent deformation without fracture is known as
a. elasticity
b. plasticity
c. ductility
d. resistivity
Q. Mechanical streesing of crystal strucure .........conductivity of metals.
a. decreases
b. increases
c. less
d. none
Q. The grain boundry area decreases when the polycrystalline material heated ..
a. below 0.5 tm
b. below 0 k
c. above room temperatur e
d. above0.5tm
Q. The shear stress required to produce slip on crystal plane is called........ shear plane.
a. critical resolve d
b. atomic
c. cross
d. none
Q. In metals the plastic deformation is generally takes place by
a. twinning
b. slip
c. atomic spacin g
d. dislocations
Q. According to bravais ,there are ......... possible types of space lattice in the seven
a. 8
b. 14
c. 20
d. 24
Q. The burger vector is at ..... to the edge dislocation line
a. parallel
b. perpendicula r
c. right angle
d. none
Q. .................. imperfections involves vacancies of pair of ions of opposite charges
a. vacancy
b. schottky
c. edge
d. none