Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Cooling down Neither A nor B Both A & B Warming up Cooling down Neither A nor B Both A & B Warming up ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for __________ bricks. Fireclay Silica Very low alumina Dolomite Fireclay Silica Very low alumina Dolomite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica below 870°C ? Cristobalite Tridymite Quartz None of these Cristobalite Tridymite Quartz None of these 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 Dolomite bricks have good resistance to attack by None of these Iron oxide Molten steel Lime slag None of these Iron oxide Molten steel Lime slag ANSWER DOWNLOAD EXAMIANS APP
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