Refractory Technology Which is not a natural insulating material? Vermiculite Asbestos Diatomaceous earth/kieselgur None of these Vermiculite Asbestos Diatomaceous earth/kieselgur None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica below 870°C ? None of these Quartz Cristobalite Tridymite None of these Quartz Cristobalite Tridymite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Firing of refractory brick is done to Form ceramic bonds necessary for development of high crushing strength in the finished product Develop stable mineral forms in them Dehydrate the dried refractory All of these Form ceramic bonds necessary for development of high crushing strength in the finished product Develop stable mineral forms in them Dehydrate the dried refractory All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Zirconia Alumina Beryllia Thoria Zirconia Alumina Beryllia Thoria 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. 50 and 50 80 and 20 20 and 80 60 and 40 50 and 50 80 and 20 20 and 80 60 and 40 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks is not used for lining the Roof of open hearth furnace Cupola Bottom of hot metal mixer Gas producer Roof of open hearth furnace Cupola Bottom of hot metal mixer Gas producer ANSWER DOWNLOAD EXAMIANS APP
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