Refractory Technology Silica refractories are not used in Coke oven walls Open hearth furnace roof Beehive coke ovens Dome and upper portion of B.F. stoves Coke oven walls Open hearth furnace roof Beehive coke ovens Dome and upper portion of B.F. stoves ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, becaus of its None of these Non-wetting characteristic High crushing strength High thermal conductivity None of these Non-wetting characteristic High crushing strength High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite chrome refractories Have better spalling resistance than chrome magnesite refractories Have very low (50 kg/cm² ) cold crushing strength (C.C.S.), and can not be used in metalcase form Have very low thermal co-efficient of expansion Are not at all resistant to the corrosive action of iron oxide Have better spalling resistance than chrome magnesite refractories Have very low (50 kg/cm² ) cold crushing strength (C.C.S.), and can not be used in metalcase form Have very low thermal co-efficient of expansion Are not at all resistant to the corrosive action of iron oxide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Machine moulding of dry mixture of refractories requires a pressure of the order of __________ kg/cm². 1000 10 500 100 1000 10 500 100 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are never used in the Zinc roaster Lead blast furnace Coke oven walls Beehive oven Zinc roaster Lead blast furnace Coke oven walls Beehive oven ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories are dried in the Rotary kilns None of these Tunnel kilns Sun Rotary kilns None of these Tunnel kilns Sun ANSWER DOWNLOAD EXAMIANS APP
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