Top 350+ Solved Engineering Materials MCQ Questions Answer
Q. Coolant is used on a lathe
a. To cool the work piece
b. To cool the tool
c. To remove the chips
d. All the above
e. None of the above
Q. Which one is different from the other in press work?
a. Perforating
b. Slitting
c. Blanking
d. Seaming
e. Punching
Q. Hard steels and non-ferrous metal do not exhibit a definite yield point when pulled in the testing machine and for such cases a better measure of their elastic properties is defined by
a. Yield point stress
b. Yield point strain
c. Proof stress
d. Ultimate stress
e. None of the above
Q. If the major quantium number of an atom is three, it possesses
a. Only s and p electrons
b. Only s electrons
c. Only s, p and d electrons
d. Only p electrons
e. None of the above is true
Q. In an one component system containing two phases, at equilibrium the number of degrees of freedom would be
a. Infinite
b. 2
c. 3
d. 1
e. 4
Q. The furnace used for castings of cast iron in a foundry shop is known as
a. Electric induction furnace
b. Muffle furnace
c. Blast furnace
d. Cupola
e. Reverberatory furnace
Q. In fibre glass reinforced plastics, the glass fibres are primarily used to improve
a. Mechanical properties of plastics
b. Electrical properties of plastics
c. Thermal properties of plastics
d. Surface properties of plastics
e. None of the above
Q. Application of tin is in
a. bulb filaments
b. low current fuses
c. transducers
d. hair springs
e. None of the above
Q. The phenomenon of 'weld decay' is associated with
a. Stainless steels
b. Manganese steels
c. Aluminium alloys
d. Cast iron
e. Brass
Q. If a material has similar properties throughout its volume, it is said to be
a. Homogeneous
b. Uniform
c. Isentropic
d. Continuous
e. Isotropic
Q. Which of the following material can withstand maximum shocks without failure?
a. Malleable cast iron
b. Pig iron
c. Gray cast iron
d. Chilled cast iron
e. White cast iron
Q. Heavy water is obtained by
a. Slow evaporation of water
b. Low temperature, low pressure distillation
c. Rapid evaporation of water
d. Repeared purification
e. Prolonged electrolysis of water
Q. Identify the incorrect statement
a. Fatigue strength is seriously reduced by the introduction of a stress raiser such as a notch or hole
b. A fatigue failure is particularly insidous, because it occurs without any warning
c. Fatuge results in a brittle fracture with no gross deformation at the fracture
d. As the roughness of surface increses the fatigue life of speoimen increases
e. None of the above
Q. Pipes for bicycle frames are made of
a. Cold rolled steel
b. Carbon chrome steel
c. Stainless steel
d. Cast iron
e. Hot rolled steel