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Refractory Technology

Refractory Technology
Which furnace consumes maximum refractory annually in an integrated steel plant?

Coke ovens
Soaking pit
L.D. converter
Blastfurnace

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Refractory Technology
Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale.

Silicon carbide
Chrome or magnesite
Lowduty fireclay
Silica

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Refractory Technology
Insulating refractories should have

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

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Refractory Technology
Permeability of bricks is a measure of the

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

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Refractory Technology
Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of

Fireclay
Corrundum
Siliceous fireclay
Silicon carbide

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Refractory Technology
Magnesite bricks are used in those parts of furnaces, which are

Required to resist corrosive basic slag
Subjected to high load
Subjected to temperature fluctuation
None of these

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