Top 250+ Solved Metallurgy MCQ Questions Answer
Q. In tool steel the sulphur content is usually not allowed to exceed
a. 3.5 percent
b. 0.035 percent
c. 5 percent
d. 0.001 percent
e. 0.35 percent
Q. Which of the following material is not used for cyaniding?
a. Sodium carbonate
b. Sodium chloride
c. Sodium hydroxide
d. Sodium cyanide
e. All of the above
Q. As per IS code, C 65 steel will have carbon percentage of
a. 0.065 percent
b. 0.6 to 0.7 percent
c. 6 to 7 percent
d. 00 to 70 percent
e. None of the above
Q. Invar is an alloy of
a. Iron and copper
b. Iron and nickel
c. Iron and chromium
d. Iron and zinc
e. Iron and vanadium
Q. Which of the following can be used as fuel in open hearth furnace?
a. Liquid fuels
b. Coke oven gas
c. Producer gas
d. Any of the above
e. Low specific heat of quenching oil
Q. Which of the following furnaces is not used for non-ferrous materials
a. Gas fired tilting furnace
b. Pit furnace
c. Cupola
d. Crucible furnace
e. Oil fired tilting furnace
Q. In order to observe the grain size of steel samples under microscope, the magnification should be the order of
a. 2
b. 20
c. 1500
d. 100
e. 10
Q. For each ton of pig iron produced from blast furnace, the lime stone used is approximately
a. 0.01 ton
b. 0.4 tom
c. 0.1 ton
d. 1.4 ton
e. 2.55 tons
Q. Chilling, heat treatment and alloy addition to cast iron generally
a. reduces machinability
b. reduces carbon percentage
c. reduces wear resistance
d. improves machinability
e. None of the above
Q. Manganese is added to steel primarily to increase
a. Malleability
b. Ductility
c. Fatigue strength
d. Endurance limit
e. Tensile strength
Q. Just as strong is opposite of weak likewise elastic is opposite of
a. Rigid
b. Soft
c. Ductile
d. Inelastic
e. Hard
Q. Which of the following temperatures represents the tempering temperature for C 30 steel?
a. 1700?C
b. 100-150?C
c. 1400-1450?C
d. 550-660?C
e. 860-890?C
Q. Which thermocouple can measure the highest temperature?
a. Tungsten- molybdenum
b. Copper-constantan
c. Chromel-alumel
d. Iron constantan
e. Platinum-rhodium
Q. Which of the following is the softest material?
a. Corundum
b. Fluorite
c. Diamond
d. Quartz
e. Calcite