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Refractory Technology

Refractory Technology
Hollow refractory bricks are made by

Hand moulding
Slip casting
Pressing/machine moulding
Extrusion

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Refractory Technology
Zircon refractories have

Low co-efficient of expansion
High spalling resistance
High RUL (1600°C) and refractoriness (> 2000°C)
All of these

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Refractory Technology
Fireclay bricks are not used in the

Coke oven regenerators
By-product coke oven walls
Combustion chamber of B.F. stoves
Beehive coke oven

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Refractory Technology
__________ bricks are used in the burning zone of a cement rotary kiln.

Fireclay
High alumina
Silicon carbide
Thoria

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Refractory Technology
Chrome magnesite brick is not used for lining the

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

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Refractory Technology
Highest melting (m.p = 3070°C) oxide refractory is

Magnesia
Alumina
Thoria
Zirconia

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MORE MCQ ON Refractory Technology

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