Refractory Technology Spalling of silica bricks occurs due to abrupt volume changes, when it is cooled below a temperature of __________ °C. 270 570 770 70 270 570 770 70 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories are exclusively used in the 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 Side wall of soaking pits Walls of coke oven ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic open hearth furnace is lined with __________ bricks. Fireclay Dolomite Silica Magnesite Fireclay Dolomite Silica Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of a refractory does not depend upon its Firing temperature Shape Texture Composition Firing temperature Shape Texture Composition ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Grog Contains both alumina and silica Iscrushed firebrick Is a non-plastic material All of these Contains both alumina and silica Iscrushed firebrick Is a non-plastic material All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite refractories are generally not used in the Burning zone of cement kilns Steel melting furnace Open hearth furnace Electric furnace walls Burning zone of cement kilns Steel melting furnace Open hearth furnace Electric furnace walls ANSWER DOWNLOAD EXAMIANS APP
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