Refractory Technology Hot blast main (carrying air at 1000°C) in blast furnace are lined with __________ bricks. Silica Magnesite Fireclay Zirconia Silica Magnesite Fireclay Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thoria is an expensive refractory material and is radioactive in nature. Thorium oxide is used in the manufacture of Crucibles used for melting of high purity metals Muffles for muffle furnaces Segar cones Insulating bricks Crucibles used for melting of high purity metals Muffles for muffle furnaces Segar cones Insulating bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Mullite is chemically represented by Al2O₃ . SiO₂ 2Al2O₃ . 3SiO₂ Al2O₃ . 2SiO₂ 3Al2O₃ . 2SiO₂ Al2O₃ . SiO₂ 2Al2O₃ . 3SiO₂ Al2O₃ . 2SiO₂ 3Al2O₃ . 2SiO₂ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Insulating refractories should have Low thermal conductivity Neither A nor B Both A & B High porosity Low thermal conductivity Neither A nor B Both A & B High porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The largest consumer of refractories is the __________ industry. Metallurgical Power Cement Fertiliser Metallurgical Power Cement Fertiliser 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 Water Aluminium phosphate Lime Plaster of paris Water Aluminium phosphate ANSWER DOWNLOAD EXAMIANS APP
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