Top 1000+ Solved Material Science MCQ Questions Answer
Q. The structure of common glass is:
a. amorphous
b. partially crystallin e
c. fully crystallin e
d. none of the above
Q. Which of the following materials has body centered cubic structure?
a. molybdenum
b. cadmium
c. glass
d. zinc
Q. Which of the following materials does not have body centered cubic structure?
a. vanadium
b. potassium
c. lithium
d. calcium
Q. Which of the following factores govern the grain size?
a. nature and extent ofdeoxidizers
b. chemical compositio nof steel
c. alloying element s
d. all of the above
Q. In -------- fracture the surface obtained in shining and accompanied with the formation of slip planes.
a. brittle
b. ductile
c. inter granula r
d. none of the above
Q. Mechanical stressing of crystal structure -------- conductivity of metal.
a. decreases
b. increases
c. less
d. none of the above
Q. -------- crystallises in the diamond cubic lattice.
a. pyramid
b. glass
c. diamond
d. none of the above
Q. --------- deformation is the deformation which disappears when the load is removed.
a. plastic
b. elastic
c. permanent
d. none of the above
Q. Atom movements in twinning are much less than ----- --.
a. atomic spacin g
b. lattice
c. point
d. none of the above
Q. The displacement distance for atoms around the dislocation is the---- --.
a. burger vector
b. twinning
c. slipping
d. none of the above
Q. Grain growth is an increase in ----- --.
a. grain shape
b. grain size
c. grain distributio n
d. none of the above
Q. Slow and progressive deformation of material with timer under constant stress is called----.
a. creep
b. erosion
c. resilience
d. none of the above
Q. ------ are elastic members which distort under load and regain their original shape when load is removed.
a. rubber
b. springs
c. ductility
d. none of the above
Q. An unit cell is -------
a. the smallest group of the atoms which when regularly repeated forms the crystal.
b. the basic building block of crystal.
c. a cube containin g the largest number of atoms
d. an agglomerat e d structure
Q. A material having different properties in different directions is known as:
a. isotropic
b. anisotropic
c. crystalline
d. metal