Refractory Technology Hot blast main (carrying air at 1000°C) in blast furnace are lined with __________ bricks. Zirconia Silica Magnesite Fireclay Zirconia Silica Magnesite Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of Siliceous fireclay Corrundum Silicon carbide Fireclay Siliceous fireclay Corrundum Silicon carbide Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks Are used in the hearth of blast furnace All of these Are wetted by molten iron Are acidic in nature Are used in the hearth of blast furnace All of these Are wetted by molten iron Are acidic in nature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material? Lime Plaster of paris Aluminium phosphate Water Lime Plaster of paris Aluminium phosphate Water ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. Thermal conductivity Strength None of these Spalling resistance Thermal conductivity Strength None of these Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of silica bricks varies from __________ percent. 45 to 60 5 to 10 60 to 75 20 to 30 45 to 60 5 to 10 60 to 75 20 to 30 ANSWER DOWNLOAD EXAMIANS APP
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