Refractory Technology __________ bricks should not be used in oxidising atmosphere. Silica Carbon Tar dolomite Fireclay Silica Carbon Tar dolomite Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cermets are combination of ceramic and metallic materials due to which they have high strength & resistance to high temperature. Cermets are used in the Nuclear reactors, missiles & space crafts Insulation of high temperature furnaces Hearth of the blast furnace Roof of electric furnaces Nuclear reactors, missiles & space crafts Insulation of high temperature furnaces Hearth of the blast furnace Roof of electric furnaces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology SiO₂ percentage in firebrick is about >94 55-60 80-85 35-40 >94 55-60 80-85 35-40 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Cooling down Both A & B Warming up Neither A nor B Cooling down Both A & B Warming up Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase refractory contains mainly CaO SiO₂ MgO Al2O₃ CaO SiO₂ MgO Al2O₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is an acidic refractory? Chrome magnesite Dolomite Magnesite Fireclay Chrome magnesite Dolomite Magnesite Fireclay ANSWER DOWNLOAD EXAMIANS APP
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