Refractory Technology Dilatometer is used for the determination of __________ of refractories. Resistance to CO attack Permanent linear change Modulus of rupture RUL Resistance to CO attack Permanent linear change Modulus of rupture RUL ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increasing alumina content, the fusion point of high alumina refractories Decreases Increases Remains constant May increase or decrease ; depends on its alumina content Decreases Increases Remains constant May increase or decrease ; depends on its alumina content ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Neither A nor B Volume Both A & B Specific gravity Neither A nor B Volume Both A & B Specific gravity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica upto 1470°C ? None of these Quartz Cristobalite Tridymite None of these Quartz Cristobalite Tridymite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silicon carbide refractories are used in the All of these Ceramic recuperators Muffle furnace Zinc smelting furnace All of these Ceramic recuperators Muffle furnace Zinc smelting furnace ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zirconia refractories are not used in Lining high temperature ceramic kilns Furnaces subjected to fluctuating temperature Making sheaths for thermocouple High frequency induction furnaces in the form of inductors Lining high temperature ceramic kilns Furnaces subjected to fluctuating temperature Making sheaths for thermocouple High frequency induction furnaces in the form of inductors ANSWER DOWNLOAD EXAMIANS APP
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