Top 250+ Solved Metallurgy MCQ Questions Answer
Q. Which allotropic form of iron does not have body centred cubic lattice?
a. Alpha iron
b. Beta iron
c. Gamma iron
d. Delta iron
e. All of the above
Q. All of the following are magnetic materials EXCEPT
a. Cast iron
b. Zinc
c. Nickel
d. Cobalt
e. Iron
Q. Machinability of metal depends on
a. Hardness
b. Hardness and tensile strength
c. Brittleness
d. Brittleness and toughness
e. None of the above
Q. Which of the following is not a constituent of Stellite?
a. Cobalt
b. Tungsten
c. Ferrous
d. Chromium
e. All of the above
Q. Which of the following metal has face centred cubic structure?
a. Tin
b. Gold
c. Magnesium
d. Zinc
e. Cadmium
Q. Which colour of flame represents the highest temperature?
a. Dark red
b. Pink
c. White
d. Light yellow
e. Bright red
Q. Which of the following metal does not have face centred cubic structure?
a. Nickel
b. Tin
c. Lead
d. Copper
e. Silver
Q. The rollers of a cycle chain are subjected to
a. Shear stress
b. Tensile stress
c. Creep stress
d. Fatigue stress
e. Compressive stress
Q. The maximum temperature inside a blast furnace gas is of the order of
a. 2600?C
b. 1000?C
c. 1600?C
d. 50?C
e. 3600?C
Q. If an article develops insufficient hardening after quenching it could be due to any of the following EXCEPT
a. Internal stresses in the article before heating
b. Low specific heat of quenching oil
c. Cooling rate too slow
d. Holding insufficient at the hardening temperature
e. Hardening temperature too low
Q. The allotropic form of iron not having body centred cubic lattice is
a. Alpha iron
b. Beta iron
c. Gamma iron
d. Delta iron
e. All of the above
Q. Dilute nitric acid applied to a clean fracture of wrought iron gives
a. Grey stain
b. Greenish stain
c. White stain
d. Blue stain
e. Black stain
Q. Railway rails are made of
a. Mild steel
b. Low carbon steel
c. Medium carbon steel
d. Dead muld steel
e. High carbon steel
Q. High ductility wires are made on
a. Wrought iron
b. Medium carbon steel
c. Cast iron
d. Dead mild steel
e. High carbon steel