Related Questions

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
Hot metal runner in blast furnace are lined with __________ bricks.
A Silica
B Carborundum
C Fireclay
D Magnesite
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
Roof of a basic open hearth furnace is lined with __________ bricks.
A Silica
B Fireclay
C Dolomite
D Magnesite
Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent.
A 20
B 40
C 60
D 80
A red house is built from red bricks . A blue house is built from blue bricks. A white house is built from white bricks. Then what is a greenhouse made from ?
A green bricks
B wood
C glass
D steel
The solid brick shown is made of small square shaped bricks of side 1. when the large brick is disassembled into its component small bricks. the total surface area of all the small bricks is how much greater than the surface area of the large brick?
A 32
B 40
C 60
D 72
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
Coke oven walls are lined with __________ bricks.
A Silica
B Tar-dolomite
C Low thermal conductivity
D Fire clay
Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with __________ bricks.
A Bakelite impregnated or fused periclase
B Silica
C Semi-silica
D Fireclay

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