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Refractory Technology

Refractory Technology
Carbon refractories have very high

Both B and C
Thermal conductivity
Wetting characteristics
Refractoriness

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Refractory Technology
Which furnace consumes maximum refractory annually in an integrated steel plant?

Coke ovens
L.D. converter
Blastfurnace
Soaking pit

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Refractory Technology
Silicon carbide refractories are used in the

Zinc smelting furnace
Ceramic recuperators
Muffle furnace
All of these

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Refractory Technology
__________ nozzles are used in continuous casting of steel,

Zircon
Thoria
Beryllia
Carborundum

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Refractory Technology
Bottom of basic open hearth furnace are constructed of

Porous fireclay bricks
Silicon carbide bricks
Semi-silica bricks
Dead burnt magnesite ramming mass

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Refractory Technology
Firing temperature of magnesite bricks is about __________ °C.

1000-1200
2400-2600
800-1000
1600-1800

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