Refractory Technology SiO₂ percentage in firebrick is about 35-40 >94 55-60 80-85 35-40 >94 55-60 80-85 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Electrical resistor bars are made of Zirconia Silicon carbide Graphite Alumina Zirconia Silicon carbide Graphite Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Most Cermets, which normally have high thermal conductivity and high thermal shock resistance, comprises of ceramic & metallic components of __________ percent respectively. 60 and 40 20 and 80 80 and 20 50 and 50 60 and 40 20 and 80 80 and 20 50 and 50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology In panel test for spalling resistance, the average face temperature of panel assembly is maintained at __________ °C for 24 hours. 1000 1600 700 2000 1000 1600 700 2000 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the most stable crystalline form of silica at room temperature? Quartz Cristobalite None of these Tridymite Quartz Cristobalite None of these Tridymite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is required in an insulating refractory? Neither A nor B High thermal conductivity Low porosity Both A & B Neither A nor B High thermal conductivity Low porosity Both A & B ANSWER DOWNLOAD EXAMIANS APP
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