Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Beryllia Alumina Thoria Zirconia Beryllia Alumina Thoria Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a natural insulating material? Diatomaceous earth/kieselgur Asbestos None of these Vermiculite Diatomaceous earth/kieselgur Asbestos None of these Vermiculite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hollow refractory bricks are made by Pressing/machine moulding Extrusion Hand moulding Slip casting Pressing/machine moulding Extrusion Hand moulding Slip casting ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology 'Super refractories' are made from pure Nitrides Oxides Borides Carbides Nitrides Oxides Borides Carbides ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent. 5-7 14-20 7-12 2-3 5-7 14-20 7-12 2-3 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. 80 and 20 50 and 50 60 and 40 20 and 80 80 and 20 50 and 50 60 and 40 20 and 80 ANSWER DOWNLOAD EXAMIANS APP
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