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Refractory Technology

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

Bauxite
Periclase
Corrundum
Carborundum

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Refractory Technology
Mullite is chemically represented by

3Al2O₃ . 2SiO₂
2Al2O₃ . 3SiO₂
Al2O₃ . SiO₂
Al2O₃ . 2SiO₂

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

44
8
58
24

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Refractory Technology
Refractory castables are used for

All of these
Minimising the number of joints in the structure
Patch work
Producing monolithic linings

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Refractory Technology
High density refractory bricks have lower

Slag penetration resistance
Spalling resistance
Fusion point
Thermal conductivity

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

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

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