A. Converted to a fine powder
B. Reduced
C. Oxidised
D. None of these
Related Mcqs:
- ______________ iron is produced, when molten pig iron is allowed to cool gradually?
A. White cast
B. Grey cast
C. Wrought
D. None of these - White cast iron as compared to grey cast iron is ________________?
A. More durable
B. Very brittle
C. Very hard
D. All A., B. & C. - _____________ iron is produced, when molten pig iron is chilled suddenly?
A. White cast
B. Grey cast
C. Wrought
D. None of these - The impure iron (pig iron) that is tapped out from blast furnace contains about _____________ percent carbon?
A. 0.2
B. 2
C. 4
D. 8 - Cast iron is__________________?
A. Used for making shock resisting parts
B. Manufactured in cupola and is brittle
C. Having compressive strength more than its tensile strength
D. All A., B. & C. - Which is the purest form of iron ?
A. Wrought iron
B. Pig iron
C. Bessemer iron
D. Grey iron - Alpha iron is stable ______________ °C?
A. Above 1403
B. Upto 910
C. Above 1800
D. Between 910 & 1403 - In order to be called steel, an alloy should have iron percentage greater than____________________?
A. 80
B. 70
C. 90
D. 50 - Cast iron has very high___________________?
A. Compressive strength
B. Ductility
C. Shock resistance
D. Resistance to brittleness - White cast iron is not__________________?
A. Malleable
B. Whitish in color
C. Brittle
D. Strong and hard
