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Refractory Technology

Refractory Technology
The main raw material for manufacture of silicon carbide refractories is

Corrundum
Periclase
Bauxite
Carborundum

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Refractory Technology
Firing of refractory brick is done to

Dehydrate the dried refractory
Form ceramic bonds necessary for development of high crushing strength in the finished product
All of these
Develop stable mineral forms in them

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Refractory Technology
Refractoriness of a typical silica brick corresponds to Segar cone number, '32', which is equivalent to a temperature of __________ °C.

1380
1710
1520
1915

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Refractory Technology
Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant?

Rotary lime kiln
L.D. converter
Soaking pits
Ceheating furnace

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Refractory Technology
Which is an acidic refractory?

Chrome magnesite
Fireclay
Magnesite
Dolomite

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Refractory Technology
Which is the stable form of silica upto 1470°C ?

Tridymite
Cristobalite
Quartz
None of these

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