Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where Presence of iron or silica is harmful Highly reducing conditions are involved All of these Very high temperatures are involved Presence of iron or silica is harmful Highly reducing conditions are involved All of these Very high temperatures are involved ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Natural silica Mainly contains quartz All of these Is not stable at high temperature Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes Mainly contains quartz All of these Is not stable at high temperature Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Colour of fireclay bricks is Light buff to reddish buff None of these Black Yellow Light buff to reddish buff None of these Black Yellow ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Capacity of a refractory brick to withstand-sudden changes in temperature is denoted by the property called Refractoriness Refractoriness under load (RUL) None of these Spalling resistance Refractoriness Refractoriness under load (RUL) None of these Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chrome magnesite is not used in the Aluminium melting furnaces Wear out lining of steel melting furnaces All of these Inner lining of L.D. converter Aluminium melting furnaces Wear out lining of steel melting furnaces All of these Inner lining of L.D. converter ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory castables are used for Producing monolithic linings Minimising the number of joints in the structure All of these Patch work Producing monolithic linings Minimising the number of joints in the structure All of these Patch work ANSWER DOWNLOAD EXAMIANS APP
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