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Refractory Technology

Refractory Technology
With increase in the alumina content, the refractoriness of high alumina refractories

Increases
Remains same
Decreases
May increase or decrease

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Refractory Technology
Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant?

Soaking pits
Rotary lime kiln
L.D. converter
Ceheating furnace

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Refractory Technology
Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for __________ bricks.

Silica
Very low alumina
Fireclay
Dolomite

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Refractory Technology
Cold crushing strength of a refractory does not depend upon its

Composition
Texture
Firing temperature
Shape

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Refractory Technology
Chrome magnesite is not used in the

Aluminium melting furnaces
Wear out lining of steel melting furnaces
Inner lining of L.D. converter
All of these

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Refractory Technology
Refractory bricks with lower permeability is produced by using

All of these
Finer grog size
Higher moulding pressure
Higher firing temperature

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