Refractory Technology Hollow refractory bricks are made by Extrusion Slip casting Hand moulding Pressing/machine moulding Extrusion Slip casting Hand moulding Pressing/machine moulding ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Conversion of silica mineral to cristobalite is accompanied by reduction in its Neither A nor B Both A & B Specific gravity Volume Neither A nor B Both A & B Specific gravity Volume ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Capacity of a refractory brick to withstand-sudden changes in temperature is denoted by the property called Refractoriness under load (RUL) Refractoriness None of these Spalling resistance Refractoriness under load (RUL) Refractoriness None of these Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The largest consumer of refractories is the __________ industry. Metallurgical Cement Fertiliser Power Metallurgical Cement Fertiliser Power ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High porosity refractory bricks have All of these Poor resistance to the peneration of molten slag, metal & flue gases Better thermal spalling resistance Poor heat conductivity & low strength All of these Poor resistance to the peneration of molten slag, metal & flue gases Better thermal spalling resistance Poor heat conductivity & low strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Natural silica Mainly contains quartz Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes All of these Is not stable at high temperature Mainly contains quartz Transforms to other allotropic forms i.e tridymite and cristoballite involving very high volume changes All of these Is not stable at high temperature ANSWER DOWNLOAD EXAMIANS APP
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