Refractory Technology Porosity of silica bricks varies from __________ percent. 45 to 60 20 to 30 60 to 75 5 to 10 45 to 60 20 to 30 60 to 75 5 to 10 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks 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 All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following consumes the maximum tonnage of refractories annually in an integrated steel plant? L.D. converter Rotary lime kiln Soaking pits Ceheating furnace L.D. converter Rotary lime kiln Soaking pits Ceheating furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractories are used in the Electric arc furnace roof All of these Glass melting furnaces Dome of blast furnace stoves Electric arc furnace roof All of these Glass melting furnaces Dome of blast furnace stoves 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 Magnesite bricks have poor resistance to attack by __________ slag. Lime Acid Basic None of these Lime Acid Basic None of these ANSWER DOWNLOAD EXAMIANS APP
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