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Refractory Technology

Refractory Technology
High density refractory bricks have lower

Fusion point
Slag penetration resistance
Thermal conductivity
Spalling resistance

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Refractory Technology
Bauxite calcining rotary kilns are lined with __________ bricks.

Fireclay
Corundum
Carbon
85% alumina

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Refractory Technology
Maximum apparent porosity of magnesite bricks is about __________ percent.

8
24
58
44

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Refractory Technology
Which is not a high alumina refractory?

Mullite
Corrundum
Dolomite
Bauxite

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Refractory Technology
SiO₂ percentage in firebrick is about

80-85
35-40
>94
55-60

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Refractory Technology
Hot blast main (carrying air at 1000°C) in blast furnace are lined with __________ bricks.

Silica
Zirconia
Fireclay
Magnesite

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MORE MCQ ON Refractory Technology

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