Refractory Technology Which is the stable form of silica below 870°C ? Tridymite None of these Quartz Cristobalite Tridymite None of these Quartz Cristobalite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dilatometer is used for the determination of __________ of refractories. RUL Modulus of rupture Resistance to CO attack Permanent linear change RUL Modulus of rupture Resistance to CO attack Permanent linear change ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spray test determines the __________ of refractories. Permanent linear change Resistance to CO attack RUL Resistance to slag penetration Permanent linear change Resistance to CO attack RUL Resistance to slag penetration ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is not a natural insulating material? None of these Asbestos Vermiculite Diatomaceous earth/kieselgur None of these Asbestos Vermiculite Diatomaceous earth/kieselgur ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower wall courses of soaking pits are made of __________ bricks to avoid the action of molten slag & scale. Silica Chrome or magnesite Lowduty fireclay Silicon carbide Silica Chrome or magnesite Lowduty fireclay Silicon carbide ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a neutral refractory? Magnesia Silica Magnesite chrome Graphite Magnesia Silica Magnesite chrome Graphite ANSWER DOWNLOAD EXAMIANS APP
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