Refractory Technology Capacity of a refractory brick to withstand-sudden changes in temperature is denoted by the property called Spalling resistance None of these Refractoriness Refractoriness under load (RUL) Spalling resistance None of these Refractoriness Refractoriness under load (RUL) ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology With increase in the alumina content in firebricks, its fusion point (refractoriness) Increases Remains unchanged Decreases Decreases linearly Increases Remains unchanged Decreases Decreases linearly ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the most stable crystalline form of silica at room temperature? Quartz Tridymite Cristobalite None of these Quartz Tridymite Cristobalite None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory castables are used for Patch work Minimising the number of joints in the structure Producing monolithic linings All of these Patch work Minimising the number of joints in the structure Producing monolithic linings All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Grog addition in fireclay during brick manufacture is done to Impart greater spalling resistance Enhance the strength of fired refractories All of these Reduce its shrinkage on heating Impart greater spalling resistance Enhance the strength of fired refractories All of these Reduce its shrinkage on heating ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Cold crushing strength of fireclay bricks is about __________ kgf/cm². 500-1000 200-400 50-100 100-150 500-1000 200-400 50-100 100-150 ANSWER DOWNLOAD EXAMIANS APP
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