Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Cooling down Warming up Neither A nor B Both A & B Cooling down Warming up Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica between 1470°C and the melting point 1713°C ? Quartz Cristobalite None of these Tridymite Quartz Cristobalite None of these Tridymite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories used in/for __________ should have low thermal conductivity. Regenerators Coke ovens Insulation Muffle furnaces Regenerators Coke ovens Insulation Muffle furnaces ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Alumina-graphite bricks are used for lining the Continuous casting systems Slide gate in teeming laddies Both A & B Neither A nor B Continuous casting systems Slide gate in teeming laddies Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase is Amorphous magnesite ZrSO₄ Crystalline form of MgO MgCO₃ Amorphous magnesite ZrSO₄ Crystalline form of MgO MgCO₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. Carborundum High alumina Superduty fireclay Silica Carborundum High alumina Superduty fireclay Silica ANSWER DOWNLOAD EXAMIANS APP
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