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REFRACTORY TECHNOLOGY

Refractory Technology
Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as __________ percent.

80
70
55
90

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Refractory Technology
Maximum shrinkage in volume occurring during burning/firing of dried refractories may be as high as __________ percent.

10
20
15
30

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Refractory Technology
Periclase refractory contains mainly

CaO
SiO₂
Al2O₃
MgO

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Refractory Technology
In panel test for spalling resistance, the average face temperature of panel assembly is maintained at __________ °C for 24 hours.

700
1000
1600
2000

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Refractory Technology
Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory

None of these
Castables
Mortars
Cements

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