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Refractory Technology

Refractory Technology
Insulating refractories should have

Both A & B
Neither A nor B
High porosity
Low thermal conductivity

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Refractory Technology
A steel member used in the furnace construction to take the thrust of the brickwork is called

Buckstay
Baffle
Armouring
Breast wall

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

Silica
High alumina
Superduty fireclay
Carborundum

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Refractory Technology
Which of the following has the lowest electrical resistivity?

Graphite
Alumina
Fireclay
Zircon

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Refractory Technology
Alumina-graphite bricks are used for lining the

Both A & B
Continuous casting systems
Neither A nor B
Slide gate in teeming laddies

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Refractory Technology
High refractorinness of refractory bricks means, that it has a

High resistance to fusion
Low porosity
High spalling resistance
Low spalling resistance

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