Top 250+ Solved Metallurgy MCQ Questions Answer
Q. Which of the following is easiest to bend?
a. Grey pig iron
b. Wrought iron
c. Mottled pig iron
d. Cast iron
e. Steel
Q. Dilute nitric acid applied to a clean fracture of white cast iron will produce
a. Grey stain
b. Black stain
c. Pink stain
d. White stain
e. Brown stain
Q. Plasticisers are added to plastic compounds to
a. Improve resistance to acids
b. Provide a protective layer
c. Improve resistance to alkalies
d. Increase tensile strength
e. Improve softness and flexibility
Q. The process of providing zinc coating on steel pipes is known as
a. Cold working
b. Pickling
c. Galvanising
d. Blistering
e. Spheroidising
Q. Th phenomenon of emf development between two diferent metals placed in contact is known as
a. Kelvin effect
b. Thomson effect
c. Seeback effect
d. Peltier effect
e. Thermocouple effect
Q. Hardening by carburizing is limited to
a. 2 mm
b. 5 mm
c. 0.05 mm
d. Low specific heat of quenching oil
e. 0.1 mm
Q. Which of the following is by product from blast furnace?
a. Slag
b. Flue dust
c. Blast furnace gas
d. All of the above
e. None of the above
Q. Which of the following is not true in case of white cast iron
a. It is strong
b. It is brittle
c. It is malleable
d. It is whitish in colour
e. It is hard
Q. Which iron ore has least percentage of iron
a. Magnetite
b. Limonite
c. All have almost equal percentage of iron ore
d. Siderite
e. Hematite
Q. Which of the following is usually made of dead mild steel?
a. Flanges
b. Shafts
c. Spades
d. Gears
e. Fish plates
Q. The fastest cooling rate is achieved when steel is quenched in
a. Brine
b. Soldering
c. Oil
d. Water
e. Air
Q. An operation on steel aimed at softening the steel to improve machinability is known as
a. Annealing
b. Cold working
c. Softening
d. Temperature
e. Shot blasting
Q. Which of the following material can bear sudden and excessive shocks better?
a. White iron
b. Pig iron
c. Wrought iron
d. All have same shock bearing capacity
e. Cast iron
Q. The process for steel making used at TISCO, Jamshedpur is
a. Duplex process
b. Open hearth process
c. Bessemmer process
d. L-D process
e. Electric process
Q. In Brinell hardness testing the minimum thickness of the specimen should be
a. More than 10 times the depth of impression
b. Less than 10 times the depth of impression
c. Less than 5 times the depth of impression
d. Thickness of specimen has no relevance to the depth of impression
e. Equal to 10 times the depth of impression