Top 350+ Solved Engineering Materials MCQ Questions Answer
Q. Thermosetting polymers are
a. Injection moulded
b. Extruded
c. Cast moulded
d. None of the above
e. Semi-conductors
Q. Dies for drawing are generally made of
a. Cast iron
b. Mild steel
c. High carbon steel
d. Stainless steel
e. None of the above
Q. Which of the following is the hardest material?
a. Gold
b. Stainless steel
c. Cemented carbide
d. Diamond
e. High speed steel
Q. Which of the following is the ferroelectric material?
a. Rechelle salt
b. Barium titanate
c. Potassium dehydrogen phosphate
d. All of the above
e. None of the above
Q. The crystal structure of a material can be studied by
a. Electron microscope
b. X-ray difraction
c. Electron probe X-ray microanalyser
d. All of the above
e. Semi-conductors
Q. Which of the following is used for imitation jewellery?
a. Aluminium bronze
b. Silicon bronze
c. Gun metal
d. Babbit alloy
e. Duralumin
Q. The modulus of elasticity E, the modulus of rigidity C, and Poisson's ratio are related by the equation
a. E = G (1+ 2
b. E = 2G (1 - 2
c. E = 2G (1 -
d. E = G (2 +
e. E = 2G (1 +
Q. Cyaniding is the process of
a. Adding carbon and nitrogen to increase hardness of specimen uniformly
b. Adding carbon and nitrogen to increase hardness at the surface
c. Adding carbon steel
d. Adding carbon and nitrogen to increase hardness of core
e. Creating a layer on the surface to impart the property of wear resistance
Q. Which of the following can have positive or negative charge?
a. Neutron
b. Isotope
c. Hole
d. Electron
e. Iron
Q. Which of the following material has lowest specific gravity?
a. Aluminium
b. Brass
c. Copper
d. High carbon steel
e. Zinc
Q. The cast iron has
a. High ductility
b. High malleability
c. High tensile strength
d. Elastic limit close to ultimate breaking strength
e. None of the above
Q. Blisters in wrought iron cause
a. Brittleness at high temperatures
b. Brittleness at low temperatures
c. Loose textured metal
d. Voids created due to chemical reaction between carbon and iron oxide
e. None of the above
Q. Limestone is added in blast furnace to flux
a. Silicon xoide
b. Carbon
c. MnO2
d. Sulphur
e. None of the above
Q. Ligancy is
a. the number of atoms (or ions) surrounding and touching a central atom
b. a covalent bond between two atoms
c. the angle betweent he two closest directional bond of an atom
d. None of the above
e. None of the above
Q. The moisture content in a well seasoned timber is
a. 4 to 6 percent
b. 6 to 8 percent
c. 10 to 15 percent
d. 20 to 25 percent
e. None of the above