Refractory Technology Carbon refractories are exclusively used in the Side wall of soaking pits Walls of coke oven Hearth of blast furnace Regenerators of coke oven Side wall of soaking pits Walls of coke oven Hearth of blast furnace Regenerators of coke oven ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C. 270 770 70 570 270 770 70 570 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum shrinkage in volume occurring during burning/firing of dried refractories may be as high as __________ percent. 10 20 30 15 10 20 30 15 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hollow refractory bricks are made by Extrusion Pressing/machine moulding Hand moulding Slip casting Extrusion Pressing/machine moulding Hand moulding Slip casting ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The highest melting pure oxide (m.p. > 3000°C) is Beryllia Zirconia Alumina Thoria Beryllia Zirconia Alumina Thoria ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity is induced in insulating refractories by adding Powdered naphthalene Calcium phosphate Ammonium chloride/sulphate All of these Powdered naphthalene Calcium phosphate Ammonium chloride/sulphate All of these ANSWER DOWNLOAD EXAMIANS APP
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