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Refractory Technology

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

L.D. converter
Soaking pit
Coke ovens
Blastfurnace

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Refractory Technology
Refractoriness/fusion points of 'superduty' refractories is __________ °C.

> 2000
1520-1630
> 1730
1630-1670

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Refractory Technology
Cold crushing strength of fireclay bricks is about __________ kgf/cm².

500-1000
200-400
100-150
50-100

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Refractory Technology
Chemically, mullite refractories is

Al2O₃
ZrSO₄
3Al2O₃.2SiO₂
ThO₂

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Refractory Technology
Fireclay bricks are used in the

Chimney linings
Flues
Furnaces allowed to cool frequently
All of these

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Refractory Technology
Spray test determines the __________ of refractories.

Permanent linear change
Resistance to CO attack
Resistance to slag penetration
RUL

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