Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. Specific heat Thermal conductivity Density None of these Specific heat Thermal conductivity Density None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns. 1800 2700 2200 2400 1800 2700 2200 2400 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the None of these Increased thermal conductivity of brick Decreased viscosity of slag Oxidising condition in the furnace None of these Increased thermal conductivity of brick Decreased viscosity of slag Oxidising condition in the furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the Ceramic recuperators Zinc smelting furnace All of these Muffle furnace Ceramic recuperators Zinc smelting furnace All of these Muffle furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Alumina Zirconia Beryllia Thoria Alumina Zirconia Beryllia Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Mixing of ground refractory material and water is done in a __________ mill. Rod Tube Pug Ball Rod Tube Pug Ball ANSWER DOWNLOAD EXAMIANS APP
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