Top 250+ Solved Metallurgy MCQ Questions Answer
Q. Spherical metal powders are usually produced by
a. Milling
b. Electrolytic process
c. Oxidation
d. Automization
e. Reduction
Q. In Brinell hardness testing the timer for loading is
a. 15 seconds
b. 1 second
c. 5 seconds
d. 1 minute
e. 2 seconds
Q. The stainless steels owe their resistance to corrosion to the presence of
a. Chromium
b. Carbon
c. Sulphur
d. Manganese
e. Nickel
Q. The effect of austenitic grain size development during heat treatment is
a. lower hardenability
b. greater toughness
c. lower internal stress
d. All of the above
e. Low specific heat of quenching oil
Q. Warping may be avoided when quenching a long slender piece of work by
a. Holding the work piece between clamps and pouring water on it
b. Hoding the work piece vertically over the quenching bath and plunging it straight
c. Pulling the piece from both ends
d. Holding the piece horizontally in adequate supports
e. None of the above
Q. Which of the following is not a hardening process?
a. Nitriding
b. Carburising
c. Cyaniding
d. Sphcroidizing
e. Induction hardening
Q. Nichrome contains
a. Nickel, lead and zinc
b. Nickel and copper
c. Nickel and chromium
d. Nickel, copper and vanadium
e. Nickel, chromium and vanadium
Q. Free cutting steels usually have sulphur content of
a. 0.02 percent
b. 0.21 percent
c. 2 percent
d. 10 percent
e. 0.002 percent
Q. Fusible plug for boilers consists of
a. Zinc, bismuth and tin
b. Lead, tin and mercury
c. Copper, lead and tin
d. Bismuth, lead and tin
e. Zinc, copper and lead
Q. Stellite contains
a. Nickel, zinc and aluminium
b. Nickel, copper and zinc
c. Cobalt, chromium and tungsten
d. Copper, tin and lead
e. Cobalt, vanadium and nickel
Q. For producing cast iron pipes by centrifugal casting method the core used is
a. Wax core
b. Clay core
c. Metallic core
d. Sand core
e. No core is used
Q. Which of the following furnace is used to convert liquid pig iron into steel?
a. Open hearth furnace
b. Cupola
c. Converter
d. Induction arc furnace
e. Low specific heat of quenching oil