Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Thoria Beryllia Zirconia Alumina Thoria Beryllia Zirconia Alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High thermal conductivity of a refractory material is not important, when it is to be used in the Blast furnace Recuperators Muffle furnace Coke oven regenarators Blast furnace Recuperators Muffle furnace Coke oven regenarators ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica refractories Can not be used in the dome of hot blast stoves Crack when subjected to sudden change of temperature All of these Have lower thermal conductivity than fireclay bricks Can not be used in the dome of hot blast stoves Crack when subjected to sudden change of temperature All of these Have lower thermal conductivity than fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hollow refractory bricks are made by Extrusion Hand moulding Slip casting Pressing/machine moulding Extrusion Hand moulding Slip casting Pressing/machine moulding ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory castables are used for Patch work All of these Minimising the number of joints in the structure Producing monolithic linings Patch work All of these Minimising the number of joints in the structure Producing monolithic linings ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 2570 2800 1350 1715 2570 2800 1350 1715 ANSWER DOWNLOAD EXAMIANS APP
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