Refractory Technology Refractoriness under loads (RUL) is quite close to the fusion temperature (PCE) for __________ bricks. Silica Dolomite Fireclay Very low alumina Silica Dolomite Fireclay Very low alumina ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ is the measure of the strength of refractory under the combined effect of temperature & load. Thermal conductivity Specific gravity RUL Porosity Thermal conductivity Specific gravity RUL Porosity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology An insulating refractory brick should have high porosity and low thermal conductivity. Which of the following is not used for inducing porosity in the insulating refractory bricks during its manufacture? Cork Chemically prepared foam Sand Saw dust Cork Chemically prepared foam Sand Saw dust ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology The maximum linear expansion of silica bricks during firing is about __________ percent. 2 1 3.5 0.5 2 1 3.5 0.5 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Alumina-graphite bricks are used for lining the Slide gate in teeming laddies Both A & B Neither A nor B Continuous casting systems Slide gate in teeming laddies Both A & B Neither A nor B Continuous casting systems ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to CO attack Slag attack Thermal spalling Fusion under load CO attack Slag attack Thermal spalling Fusion under load ANSWER DOWNLOAD EXAMIANS APP
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