Refractory Technology 'Spinel', a refractory mineral is chemically represented as MgSO₄ MgAl2O₄ MgAl2O₃.2H₂O MgAl2O₃ MgSO₄ MgAl2O₄ MgAl2O₃.2H₂O MgAl2O₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Skull is not formed on the carbon blocks in the hearth of a blast furnace, when it becomes cold, becaus of its High crushing strength None of these High thermal conductivity Non-wetting characteristic High crushing strength None of these High thermal conductivity Non-wetting characteristic ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Sillimanite is a __________ refractory. Insulating High alumina Basic Neutral Insulating High alumina Basic Neutral ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves? High strength and density High resistance to spalling All of these High refractoriness High strength and density High resistance to spalling All of these High refractoriness ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks All of these Are acidic in nature Are wetted by molten iron Are used in the hearth of blast furnace All of these Are acidic in nature Are wetted by molten iron Are used in the hearth of blast furnace 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 Roof of electric furnaces 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 ANSWER DOWNLOAD EXAMIANS APP
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