Refractory Technology Maximum safe working temperature for fireclay bricks is about __________ °C. 1150 1450 1550 1300 1150 1450 1550 1300 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are used in Both A & B Bottom of soaking pits Neither A nor B Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other Both A & B Bottom of soaking pits Neither A nor B Between acid & basic linings in basic open hearth furnaces to prevent their chemical action with each other ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractories are dried in the Rotary kilns Sun None of these Tunnel kilns Rotary kilns Sun None of these Tunnel kilns 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 under load (RUL) Refractoriness Spalling resistance None of these Refractoriness under load (RUL) Refractoriness Spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following bricks has the most close values of RUL and PCE? High alumina bricks Silica bricks Fireclay bricks Tar dolomite bricks High alumina bricks Silica bricks Fireclay bricks Tar dolomite bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spray test determines the __________ of refractories. Resistance to CO attack RUL Resistance to slag penetration Permanent linear change Resistance to CO attack RUL Resistance to slag penetration Permanent linear change ANSWER DOWNLOAD EXAMIANS APP
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