Q141
Open questionWhich furnace consumes maximum refractory annually in an integrated steel plant?
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Refractory Technology
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Q142
Open questionBecause of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns.
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Q143
Open questionFireclay bricks are used in the
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Q144
Open questionSkull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, becaus of its
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Q145
Open question'Spinel', a refractory mineral is chemically represented as
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Q146
Open questionPick out the wrong statement.
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Q147
Open questionFireclay bricks are not used in the
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Q148
Open questionSpalling of a refractory means its
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Q149
Open questionMagnesite chrome refractories
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Q150
Open questionRefractory bricks with lower permeability is produced by using
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Q151
Open questionWhich refractory must have controlled atmosphere (temperature and humidity) for its safe storage?
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Q152
Open questionPure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors.
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Q153
Open questionHigh alumina refractory compared to fireclay bricks have
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Q154
Open questionWhich is not an alumino-silicate refractory?
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Q155
Open question__________ nozzles are used in continuous casting of steel,
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Q156
Open questionMagnesite refractories are used for the construction of those furnaces, which are
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Q157
Open questionNatural silica
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Q158
Open questionCarborundum used for making crucibles for melting non-ferrous metals is chemically
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Q159
Open questionWhich one contains minimum percentage of SiO2?
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Q160
Open questionDilatometer is used for the determination of __________ of refractories.
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