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Refractory Technology

Refractory Technology
Which is not an acidic refractory?

Carbon black
Silica
Fireclay
High alumina refractory

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Refractory Technology
Permeability of bricks is a measure of the

Refractoriness
Rate at which a fluid will pass through the pores
Expansion during heating
Melting point

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Refractory Technology
Refractory castables are used for

Minimising the number of joints in the structure
All of these
Patch work
Producing monolithic linings

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Refractory Technology
Cold crushing strength of a refractory does not depend upon its

Firing temperature
Shape
Texture
Composition

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Refractory Technology
Which refractory must have controlled atmosphere (temperature and humidity) for its safe storage?

Fireclay bricks
Mullite bricks
Magnesite bricks
Tar bonded dolomite bricks

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Refractory Technology
Silica bricks are never used for lining the

Dome of blast furnace stoves
Roof of open hearth furnace
By-product coke ovens
Beehive coke ovens

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