Refractory Technology Carbon bricks are not used in the lining of the Combustion chamber of blast furnace stoves Electric furnaces Blast furnace hearth Highly chemical resistant equipments Combustion chamber of blast furnace stoves Electric furnaces Blast furnace hearth Highly chemical resistant equipments ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content, the refractoriness of high alumina refractories May increase or decrease Increases Decreases Remains same May increase or decrease Increases Decreases Remains same ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which form of silica has the highest specific gravity? Tridymite All of these Cristobalite Quartz Tridymite All of these Cristobalite Quartz ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity is induced in insulating refractories by adding Ammonium chloride/sulphate All of these Calcium phosphate Powdered naphthalene Ammonium chloride/sulphate All of these Calcium phosphate Powdered naphthalene ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ bricks are used in the burning zone of a cement rotary kiln. High alumina Silicon carbide Thoria Fireclay High alumina Silicon carbide Thoria Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal conductivity of refractory bricks Increases with decrease in porosity Is independent of its porosity and is maximum for insulating bricks Decreases with decreases in porosity Increases with the amount of air entrapped in pores Increases with decrease in porosity Is independent of its porosity and is maximum for insulating bricks Decreases with decreases in porosity Increases with the amount of air entrapped in pores ANSWER DOWNLOAD EXAMIANS APP
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