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Refractory Technology

Refractory Technology
__________ is the measure of the strength of refractory under the combined effect of temperature & load.

RUL
Porosity
Specific gravity
Thermal conductivity

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Refractory Technology
Silliminite (Al2O₃.SiO₂) refractory, which is a neutral refractory, is not used in

Gas retorts
Glass melting furnace
Crucibles
Pottery furnace

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Refractory Technology
Vacuum steel degassing units are lined with

High alumina bricks
Graphite blocks
Silica bricks
Low duty firebricks

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Refractory Technology
Si percentage in silica refractories used in the walls of coke oven is about

80
95
45
60

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Refractory Technology
Outer combustion chamber of blast furnace stove is lined with __________ bricks.

Chrome magnesite
Zirconia
Silica
Fireclay

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Refractory Technology
The main raw material for manufacture of silicon carbide refractories is

Periclase
Bauxite
Carborundum
Corrundum

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