Refractory Technology __________ of carbon blocks in the hearth of blast furnace helps in avoiding skull formation, when it becomes cold. High thermal conductivity High density Non-wetting characteristics Low porosity High thermal conductivity High density Non-wetting characteristics Low porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High thermal conductivity of a refractory material is not important, when it is to be used in the Muffle furnace Blast furnace Coke oven regenarators Recuperators Muffle furnace Blast furnace Coke oven regenarators Recuperators ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon bricks are not used in the lining of the Blast furnace hearth Highly chemical resistant equipments Combustion chamber of blast furnace stoves Electric furnaces Blast furnace hearth Highly chemical resistant equipments Combustion chamber of blast furnace stoves Electric furnaces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Insulating refractories should have High porosity Both A & B Neither A nor B Low thermal conductivity High porosity Both A & B Neither A nor B Low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a high alumina refractory? Mullite Bauxite Dolomite Corrundum Mullite Bauxite Dolomite Corrundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture? Sand Chemically prepared foam Cork Saw dust Sand Chemically prepared foam Cork Saw dust ANSWER DOWNLOAD EXAMIANS APP
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