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DATA TYPES AND VARIABLES QUIZ

Cold crushing strength of a refractory does not depend upon its

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Magnesite chrome bricks are used in the

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Porosity of fireclay refractories is __________ percent.

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SiO₂ percentage in firebrick is about

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Which is the stable form of silica upto 1470°C ?

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__________ of carbon blocks in the hearth of blast furnace helps in avoiding skull formation, when it becomes cold.

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Permeability of bricks is a measure of the

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Hollow refractory bricks are made by

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Thermal diffusivity of a refractory brick is high, when its __________ is high.

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Beryllia (which is used in making crucibles for melting uranium & thorium) is superior to alumina in all respects for high temperature (> 1900°C ) use, except

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