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Refractory Technology

Refractory Technology
Which is not a high alumina refractory?

Bauxite
Dolomite
Corrundum
Mullite

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Refractory Technology
Tar dolomite bricks are used in the

All of these
Electric furnaces
Basic Bessemer converter
Basic open hearth furnace

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Refractory Technology
Silicon carbide refractories are used in the

Ceramic recuperators
Zinc smelting furnace
All of these
Muffle furnace

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Refractory Technology
Which brick undergoes maximum shrinkage on drying?

Magnesite bricks
Tar bonded dolomite bricks
Fireclay bricks
Chromite bricks

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Refractory Technology
Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves?

High strength and density
High refractoriness
All of these
High resistance to spalling

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Refractory Technology
In panel test for spalling resistance, the average face temperature of panel assembly is maintained at __________ °C for 24 hours.

1000
700
1600
2000

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