Top 250+ Solved Metallurgy MCQ Questions Answer
Q. An instrument which is used for measuring temperature variations by change in a metallic resistance is called a
a. thermo-generator
b. Thermo-galvanometer
c. Thennocouple
d. Thermopile
e. Bolometer
Q. White metal contains
a. Mercury and zinc
b. Copper, zinc and mercury
c. Lead and copper
d. Lead and bismuth
e. Lead and zinc
Q. For acid resistance cast iron should have silicon percentage of
a. 1 percent
b. 15 percent
c. 10 percent
d. 25 percent
e. 2 percent
Q. Which of the following gives granular fracture?
a. Steel
b. Wrought iron
c. Cast iron
d. All of the above
e. None of the above
Q. Which of the following operation on grey cast iron will result in the production of white cast iron?
a. Rapid heating
b. Tumbling
c. Tempering
d. Shot peening
e. Rapid cooling
Q. A solder consists of
a. Tin and antimony
b. Tin and white metal
c. Lead and tin
d. Zinc and lead
e. Zinc and tin
Q. Ferrites are a sub-group of
a. Ferromagnetic materials
b. Ferrimagnetic materials
c. Diamagnetic materials
d. Paramagnetic materials
e. None of the above
Q. Which of the following material is added to cast iron to obtain nodular cast iron?
a. Chromium
b. Copper
c. Magnesium
d. Manganese
e. Molybdenum
Q. Pure iron has the structure of
a. Ferrite
b. Pearlite and austenite
c. Pearlite
d. Austenite
e. Pearlite, austenite and ferrite
Q. A hardness value of 1400 BHN can be expected in case of
a. Cementite
b. Ferrite
c. Pearlite
d. All of the above
e. None of the above
Q. During first charge in cupola the time taken by material to melt is approximately
a. 2
b. 5 to 6 hours
c. 10 minutes
d. 1 hour
e. Half an hour
Q. Chromium percentage in cutlery stainless steel is
a. 11 - 13 percent
b. 18 - 20.5 percent
c. 6 - 8 percent
d. 15 - 18 percent
e. 8 - 10 percent
Q. Percentage of carbon is least in case of
a. Pig iron
b. Wrought iron
c. Malleable iron
d. Cast iron
e. Steel