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Refractory Technology

Refractory Technology
Silicon carbide refractories are used in the

Zinc smelting furnace
Ceramic recuperators
All of these
Muffle furnace

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Refractory Technology
Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors.

Beryllia
Carborundum
Corundum
Thoria

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Refractory Technology
Which is a basic refractory?

Silica
Fireclay
Chrome magnesite
None of these

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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
Plaster of paris
Lime
Aluminium phosphate

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Refractory Technology
Which of the following bricks has the most close values of RUL and PCE?

Tar dolomite bricks
Silica bricks
High alumina bricks
Fireclay bricks

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

Fireclay
Thoria
Silicon carbide
High alumina

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