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Refractory Technology

Refractory Technology
Which is not a basic refractory?

Chrome magnesite
Dolomite
Magnesite
Silicon carbide

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Refractory Technology
Test piece for determination of RUL of a refractory is heated in a/an

Reducing atmosphere
Oxidising atmosphere
Neutral atmosphere
Electric furnace

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Refractory Technology
Roof of a basic open hearth furnace is lined with __________ bricks.

Silica
Magnesite
Dolomite
Fireclay

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Refractory Technology
Lower part of hot metal mixer are lined with __________ bricks.

High alumina
Superduty fireclay
Carborundum
Silica

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Refractory Technology
High alumina refractories are used in the

Dome of blast furnace stoves
All of these
Glass melting furnaces
Electric arc furnace roof

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Refractory Technology
Electrical resistor bars are made of

Silicon carbide
Graphite
Alumina
Zirconia

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