Refractory Technology Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material? Plaster of paris Water Aluminium phosphate Lime Plaster of paris Water Aluminium phosphate Lime ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zirconia refractory Does not react with basic slags Can not be used as an insulator Is produced from baddeleyite Has poor electrical conductivity at high temperature Does not react with basic slags Can not be used as an insulator Is produced from baddeleyite Has poor electrical conductivity at high temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? Both A & B Low porosity High thermal conductivity Neither A nor B Both A & B Low porosity High thermal conductivity Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of silica bricks varies from __________ percent. 5 to 10 60 to 75 45 to 60 20 to 30 5 to 10 60 to 75 45 to 60 20 to 30 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An indication of degree of firing in silica brick is its None of these Fusion point Specific gravity RUL None of these Fusion point Specific gravity RUL ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the most stable crystalline form of silica at room temperature? None of these Cristobalite Quartz Tridymite None of these Cristobalite Quartz Tridymite ANSWER DOWNLOAD EXAMIANS APP
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