Related Questions

Outer combustion chamber of blast furnace stove is lined with __________ bricks.
A Fireclay
B Silica
C Chrome magnesite
D Zirconia
Dome temperature of blast furnace stove is most accurately measured by a
A Radiation pyrometer
B Platinum-platinum/rhodium ther-mocuple
C Iron-constantan thermocouple
D Platinum resistance thermometer
Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent.
A 20
B 40
C 60
D 80
In the blast furnace, incorporation of water vapour in the blast gives the following effect.
A Increases the reducing potential of the gas
B Increases the flame temperature
C No significant change occurs
D Increases the hydrogen content in the metal
Abrasion index of blast furnace coke should be around __________ percent.
A 20
B 35
C 80
D 55
Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same weight
A 1.5
B 3
C 5
D 7
__________ atmosphere is maintained inside an iron blast furnace.
A Oxidising
B Reducing
C Inert
D Decarburising
Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ substances.
A Radioactive
B Organic
C Inorganic
D None of these
Hot metal runner in blast furnace are lined with __________ bricks.
A Silica
B Carborundum
C Fireclay
D Magnesite
Specific gravity of hot metal (pig iron) is __________ times that of the blast furnace slag.
A 2
B 3
C 0.8
D 6

Next steps