Refractory Technology Fusion temperature of pure silica (SiO₂) is __________ °C. 1350 1715 2800 2570 1350 1715 2800 2570 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High refractorinness of refractory bricks means, that it has a High spalling resistance High resistance to fusion Low porosity Low spalling resistance High spalling resistance High resistance to fusion Low porosity Low spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Capacity of a refractory brick to withstand-sudden changes in temperature is denoted by the property called None of these Refractoriness Refractoriness under load (RUL) Spalling resistance None of these Refractoriness Refractoriness under load (RUL) Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves? High resistance to spalling High strength and density All of these High refractoriness High resistance to spalling High strength and density All of these High refractoriness ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Bauxite calcining rotary kilns are lined with __________ bricks. 85% alumina Carbon Fireclay Corundum 85% alumina Carbon Fireclay Corundum ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where Very high temperatures are involved Highly reducing conditions are involved Presence of iron or silica is harmful All of these Very high temperatures are involved Highly reducing conditions are involved Presence of iron or silica is harmful All of these ANSWER DOWNLOAD EXAMIANS APP
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