Refractory Technology Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ °C. >2000 >1350 1000 500 >2000 >1350 1000 500 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Fireclay bricks are used in the Flues All of these Chimney linings Furnaces allowed to cool frequently Flues All of these Chimney linings Furnaces allowed to cool frequently ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica bricks are attacked by basic slags at high temperature. Which of the following is not used solely as a binding material? Aluminium phosphate Water Lime Plaster of paris Aluminium phosphate Water Lime Plaster of paris ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With decrease in porosity, the __________ of the refractories decreases. Spalling resistance Thermal conductivity None of these Strength Spalling resistance Thermal conductivity None of these Strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Roof of a basic open hearth furnace is lined with __________ bricks. Dolomite Fireclay Silica Magnesite Dolomite Fireclay Silica Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silliminite (Al2O₃.SiO₂) refractory, which is a neutral refractory, is not used in Pottery furnace Crucibles Gas retorts Glass melting furnace Pottery furnace Crucibles Gas retorts Glass melting furnace ANSWER DOWNLOAD EXAMIANS APP
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