Ferrous Metals – MCQ || Building Materials ||

Ferrous Metals – MCQ

1. The ratio of Young’s modulus of high tensile steel to that of mild steel is about

a) 0.5
b) 1.0
c) 1.5
d) 2.0

2. In mild steel, the iron content is about

a) 50 %
b) 80 %
c) 90 %
d) 99 %

3. The ultimate tensile strength of high carbon steel in N/mm² may be as high as

a) 600
b) 1000
c) 1500
d) 2000

4. Which of the following type of iron is capable of dissolving carbon and non-magnetic

a) Alpha iron
b) Beta iron
c) Gamma iron
d) Delta iron

5. High-strength deformed steel bars with a yield stress of 500 Mpa should have a minimum elongation of

a) 6 %
b) 8 %
c) 13.5 %
d) 20 %

6. Which of the following is the crudest form of iron?

a) Dead mild steel
b) Wrought iron
c) Cast iron
d) Pig iron

7. Which of the following kind of steel is used in case of manufacturing of rails?

a) Cast steel.
b) Bessemer steel.
c) Manganese steel.
d) Mild steel.

8. Molybdenum steel is normally used in the manufacture of

a) Gears
b) Delicated instruments
c) Magnets
d) Point and crossing

9. Tungsten steel which is generally used for the manufacturing of

a) drilling machines.
b) Heavy earth equipment.
c) Heavy mining equipment.
d) Delicate instrument.

10. Which of the following type of iron is non-magnetic and absorbed very little carbon

a) Alpha iron
b) Beta iron
c) Gamma iron
d) Delta iron

11. Which of the following type of iron is strongly magnetic

a) Alpha iron
b) Beta iron
c) Gamma iron
d) Delta iron

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