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Refractory Technology

Refractory Technology
Hot metal runner in blast furnace are lined with __________ bricks.

Magnesite
Fireclay
Silica
Carborundum

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Refractory Technology
Ferromagnetic ceramic material is not used in the

Transformers
Magnetic switches
Television sets
Thermal insulation

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Refractory Technology
Fireclay bricks are not used in the

Coke oven regenerators
Beehive coke oven
By-product coke oven walls
Combustion chamber of B.F. stoves

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Refractory Technology
Rotary kilns meant for calcination of limestone are lined with chrome magnesite in __________ zone.

All of these
Preheating
Burning
Cooling

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Refractory Technology
The maximum linear expansion of silica bricks during firing is about __________ percent.

0.5
2
3.5
1

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Refractory Technology
Spray test determines the __________ of refractories.

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

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