Related Questions

Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns.
A 1800
B 2200
C 2400
D 2700
Faster rate of drying of moulded refractories results in high __________ of refractories.
A Green strength
B Voids
C Shrinkage
D Both B and C
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
Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent.
A 20
B 40
C 60
D 80
Operation of blast furnace stove is based on the principles of a __________ furnace.
A Regenerative
B Recuperative
C Both A and B
D Neither A nor B
Out of the following, which is the most important parameter for the blast furnace grade coke?
A CSR & CRI
B Ash content
C Moisture content
D Volatile matter content
Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be
A Oxidising
B Neutral
C Either A or B
D Neither A nor B
The portion of the blast furnace below its widest cross-section is called
A Hearth
B Stack
C Bosh
D Throat
Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas?
A Packed scrubber
B Gravity settling chamber
C Electrostatic precipitator
D Hydrocyclone
Most of the phosphorous present in the blast furnace burden enters into
A Hot metal
B Flue gases
C Slag
D Refractory lining

Next steps