Refractory Technology Magnesite bricks have poor resistance to attack by __________ slag. None of these Basic Lime Acid None of these Basic Lime Acid ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum apparent porosity of magnesite bricks is about __________ percent. 8 58 24 44 8 58 24 44 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Highest melting (m.p = 3070°C) oxide refractory is Alumina Thoria Magnesia Zirconia Alumina Thoria Magnesia Zirconia ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Maximum safe working temperature for fireclay bricks is about __________ °C. 1300 1450 1550 1150 1300 1450 1550 1150 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which of the following does not occur during firing/burning of refractories? Decrease in crushing strength Vitrification Removal of water of hydration Development of stable mineral form Decrease in crushing strength Vitrification Removal of water of hydration Development of stable mineral form ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal spalling mainly occurs during __________ of furnaces. Neither A nor B Warming up Both A & B Cooling down Neither A nor B Warming up Both A & B Cooling down ANSWER DOWNLOAD EXAMIANS APP
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