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Refractory Technology

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

Silica
Superduty fireclay
High alumina
Carborundum

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Refractory Technology
Si percentage in silica refractories used in the walls of coke oven is about

80
45
95
60

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Refractory Technology
Chromite refractories are

Neutral refractory
Acidic refractory
Basic refractory
Fired at a temperature of 600°C only

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Refractory Technology
Fireclay bricks are not used in the

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

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Refractory Technology
Which is a basic refractory?

Chrome magnesite
Fireclay
None of these
Silica

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Refractory Technology
Magnesite bricks have poor resistance to attack by __________ slag.

None of these
Lime
Basic
Acid

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