Top 350+ Solved Engineering Materials MCQ Questions Answer
Q. Polymers
a. Semi-conductors
b. Can be vaporised but cannot be recycled
c. Can be recycled but cannot be vaporised
d. Can be vaporised as well as recycled
e. Can neither be vaporised nor recycled
Q. Which of the following is a fuel used in fast reactors?
a. Chromium
b. Plutonium
c. Zirconium
d. Heavy water
e. Graphite
Q. Cold work is done on the metal
a. Below the thermal critical range
b. Above the thermal critical range
c. At zero degree centigrade temperature
d. After slightly warning the metal in furnace
e. None of the above
Q. Which of the following timber is used for sports goods?
a. Mulberry
b. Mahogany
c. Sal
d. Deodar
e. None of the above
Q. The statement that, at equilibrium, the number of phases plus the degrees of freedom must equal the number of components plus two is known as
a. Gibbs phase rule
b. Lever rule
c. Fick's rule
d. Heisenberg rule
e. None of the above
Q. Steel balls for ball bearings are hardened to
a. 100 VPN
b. 400-700 VPN
c. 700-800 VPN
d. 150-200 VPN
e. 200-400 VPN
Q. Muntz metal contains
a. Copper-tin
b. Copper-chromium
c. Copper-nickel
d. Copper-zinc
e. Copper-alminium
Q. Corrosion is a destructive attack on metals
a. Which may be chemical or electrochemical in nature
b. Which is basically caused by atmospheric air
c. Which is caused by contact with other metals
d. At high temperature
e. None of the above
Q. The depth hardness of steel increases by the addition of
a. Silicon
b. Nickel
c. Manganese
d. Sulphur
e. Chromium
Q. Dielectric strength of a material is
a. Capacity to withstand high voltage
b. Magnetic property
c. Energy storage capacity
d. Capacity to resist flow of current
e. Capacity to take two stresses
Q. The presence of sulphur in pig iron makes
a. Its casting unsound
b. It malleable
c. It brittle
d. It hard
e. It machinable
Q. Shot blasting is the process for the cleaning of
a. Pattern
b. Cores
c. Moulding sand
d. Welded components
e. Castings
Q. The process of zinc coating used extensively for protecting steel from atmospheric deterioration is known as
a. Anodizing
b. Colourizing
c. Pakerizing
d. Galvanizing
e. None of the above
Q. The process of producing parts by electrolytic deposition of metal upon a conductive removable mould or matrix is known as
a. Plating
b. Deposition
c. Electro-moulding
d. Electrolysis
e. Electro forming
Q. Some engineering materials are made up of more than one phase, with different mechanical properties, such materials are known as
a. Discontinuous
b. Brittle
c. Plastic
d. Heterogeneous
e. None of the above