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 Refractories used in/for __________ should have low thermal conductivity. Insulation Regenerators Coke ovens Muffle furnaces Insulation Regenerators Coke ovens Muffle furnaces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. Thermal conductivity Specific heat Density None of these Thermal conductivity Specific heat Density None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks should not be used, if the furnace is to be used intermit-tantly? Silicon carbide bricks Sillimanite Silica bricks Firebricks Silicon carbide bricks Sillimanite Silica bricks Firebricks 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. 1600 1000 2000 700 1600 1000 2000 700 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of ordinary fireclay brick is about 950 kg/cm² . On exposure to a temperature of about 1500°C, its crushing strength may come down to as low as __________ kg/cm² . 150 250 450 65 150 250 450 65 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS