Q121
Open questionWith increase in the porosity, thermal spalling resistance of fireclay brick
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Chemical Engineering · all questionsRefractory Technology
Refractory Technology
practice.
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220
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Q122
Open questionUse of higher percentage of lime for bonding silica bricks, reduces their
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Q123
Open questionGanister is a source of the
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Q124
Open questionFaster rate of drying of moulded refractories results in high __________ of refractories.
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Q125
Open questionChrome magnesite bricks are used in the
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Q126
Open questionGrog . . . . . . . .
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Q127
Open questionRefractories used in/for __________ should have low thermal conductivity.
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Q128
Open questionPanel test determines the __________ of refractories.
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Q129
Open questionMachine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm².
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Q130
Open questionSi percentage in silica refractories used in the walls of coke oven is about
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Q131
Open questionWhich is a neutral refractory?
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Q132
Open questionWhich is an acidic refractory?
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Q133
Open questionFerromagnetic ceramic material is not used in the
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Q134
Open questionElectrical resistor bars are made of
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Q135
Open questionChrome magnesite brick is not used for lining the
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Q136
Open questionsilicon carbide refractories have very low
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Q137
Open questionFusion temperature of pure silica (SiO2) is __________ °C.
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Q138
Open questionSpray test determines the __________ of refractories.
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Q139
Open questionThe main raw material for manufacture of silicon carbide refractories is
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Q140
Open questionWhich of the following consumes the maximum tonnage of refractories annually in an integrated steel plant?
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