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Refractory Technology

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

Blastfurnace
Coke ovens
Soaking pit
L.D. converter

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Refractory Technology
Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material?

Water
Aluminium phosphate
Lime
Plaster of paris

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Refractory Technology
Chrome magnesite brick is not used for lining the

Coke oven regenerator
Hearth of soaking pits
Bottom hearth of reheating furnace
Burning zone of limestone rotary kilns

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Refractory Technology
Which of the following is not an acidic refractory?

Fireclay bricks
Silica bricks
Magnesia bricks
Bauxite bricks

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Refractory Technology
Crushing strength of a refractory

Increases with rise in service temperature
Is unaffected with change in service temperature
Decreases with increase in porosity
Decreases with rise in service temperature

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Refractory Technology
Periclase is

MgCO₃
Amorphous magnesite
ZrSO₄
Crystalline form of MgO

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