Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Warming up Cooling down Both A & B Neither A nor B Warming up Cooling down Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for __________ bricks. Dolomite Very low alumina Silica Fireclay Dolomite Very low alumina Silica Fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica below 870°C ? Quartz Cristobalite Tridymite None of these Quartz Cristobalite Tridymite None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica upto 1470°C ? Quartz Tridymite Cristobalite None of these Quartz Tridymite Cristobalite None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dolomite bricks have good resistance to attack by Molten steel Iron oxide None of these Lime slag Molten steel Iron oxide None of these Lime slag ANSWER DOWNLOAD EXAMIANS APP
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