Refractory Technology Most Cermets, which normally have high thermal conductivity and high thermal shock resistance, comprises of ceramic & metallic components of __________ percent respectively. 60 and 40 20 and 80 80 and 20 50 and 50 60 and 40 20 and 80 80 and 20 50 and 50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Pure oxide refractories are generally monocrystaliine in nature and are self bonded __________ bricks are generally used as moderator in nuclear reactors. Thoria Carborundum Corundum Beryllia Thoria Carborundum Corundum Beryllia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal diffusivity of a refractory brick is high, when its __________ is high. None of these Specific heat Thermal conductivity Density None of these Specific heat Thermal conductivity Density ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High thermal conductivity of a refractory material is not important, when it is to be used in the Coke oven regenarators Blast furnace Recuperators Muffle furnace Coke oven regenarators Blast furnace Recuperators Muffle furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An indication of degree of firing in silica brick is its Fusion point None of these Specific gravity RUL Fusion point None of these Specific gravity RUL ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Upper portion of hot metal mixer are lined with mullite bricks, which helps in resisting the Washing action of metal Neither A nor B Both A & B Corrosion by layer of slag Washing action of metal Neither A nor B Both A & B Corrosion by layer of slag ANSWER DOWNLOAD EXAMIANS APP
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