Refractory Technology Sillimanite is a __________ refractory. Basic Neutral Insulating High alumina Basic Neutral Insulating High alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An indication of degree of firing in silica brick is its None of these Specific gravity RUL Fusion point None of these Specific gravity RUL Fusion point ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a basic refractory? Fireclay Silica None of these Chrome magnesite Fireclay Silica None of these Chrome magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Presence of MgO in alumino-silicate refractories __________ its refractoriness. Lowers Does not affect Increases Either A or B; depends on its quantity Lowers Does not affect Increases Either A or B; depends on its quantity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? Low porosity Neither A nor B Both A & B High thermal conductivity Low porosity Neither A nor B Both A & B High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zircon refractories have All of these High spalling resistance Low co-efficient of expansion High RUL (1600°C) and refractoriness (> 2000°C) All of these High spalling resistance Low co-efficient of expansion High RUL (1600°C) and refractoriness (> 2000°C) ANSWER DOWNLOAD EXAMIANS APP
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