Refractory Technology Periclase is ZrSO₄ MgCO₃ Amorphous magnesite Crystalline form of MgO ZrSO₄ MgCO₃ Amorphous magnesite Crystalline form of MgO ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Silica refractories All of these Crack when subjected to sudden change of temperature Can not be used in the dome of hot blast stoves Have lower thermal conductivity than fireclay bricks All of these Crack when subjected to sudden change of temperature Can not be used in the dome of hot blast stoves Have lower thermal conductivity than fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following does not occur during firing/burning of refractories? Decrease in crushing strength Removal of water of hydration Development of stable mineral form Vitrification Decrease in crushing strength Removal of water of hydration Development of stable mineral form Vitrification ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Capacity of a refractory brick to withstand-sudden changes in temperature is denoted by the property called Spalling resistance Refractoriness under load (RUL) Refractoriness None of these Spalling resistance Refractoriness under load (RUL) Refractoriness None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of Fireclay Silicon carbide Corrundum Siliceous fireclay Fireclay Silicon carbide Corrundum Siliceous fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dilatometer is used for the determination of __________ of refractories. Resistance to CO attack Permanent linear change Modulus of rupture RUL Resistance to CO attack Permanent linear change Modulus of rupture RUL ANSWER DOWNLOAD EXAMIANS APP
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