Refractory Technology Which of the following is not an acidic refractory? Magnesia bricks Silica bricks Fireclay bricks Bauxite bricks Magnesia bricks Silica bricks Fireclay bricks Bauxite bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rotary kilns meant for calcination of limestone are lined with chrome magnesite in __________ zone. Burning Preheating All of these Cooling Burning Preheating All of these Cooling ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of silica bricks varies from __________ percent. 20 to 30 45 to 60 5 to 10 60 to 75 20 to 30 45 to 60 5 to 10 60 to 75 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dilatometer is used for the determination of __________ of refractories. RUL Modulus of rupture Resistance to CO attack Permanent linear change RUL Modulus of rupture Resistance to CO attack Permanent linear change ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Warming up Cooling down Neither A nor B Both A & B Warming up Cooling down Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica below 870°C ? Tridymite Quartz None of these Cristobalite Tridymite Quartz None of these Cristobalite ANSWER DOWNLOAD EXAMIANS APP