Refractory Technology Hot face insulating linings of high purity alumina fused mullite are used, where Highly reducing conditions are involved Presence of iron or silica is harmful Very high temperatures are involved All of these Highly reducing conditions are involved Presence of iron or silica is harmful Very high temperatures are involved All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Panel test determines the __________ of refractories. Refractoriness under load (RUL) Slag penetration resistance Spalling resistance Fusion point Refractoriness under load (RUL) Slag penetration resistance Spalling resistance Fusion point ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase is Amorphous magnesite ZrSO₄ Crystalline form of MgO MgCO₃ Amorphous magnesite ZrSO₄ Crystalline form of MgO MgCO₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Thermal conductivity of refractory bricks Increases with decrease in porosity Is independent of its porosity and is maximum for insulating bricks Decreases with decreases in porosity Increases with the amount of air entrapped in pores Increases with decrease in porosity Is independent of its porosity and is maximum for insulating bricks Decreases with decreases in porosity Increases with the amount of air entrapped in pores ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory materials are never used in the construction of Segar cones Orton cones Pressure vessels Ovens & retorts Segar cones Orton cones Pressure vessels Ovens & retorts ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar bonded dolomite bricks Are stored under controlled temperature & humidity to avoid hydration All of these Have poorer hydration resistance than pitch bonded bricks Are used in outer lining of L.D. converters Are stored under controlled temperature & humidity to avoid hydration All of these Have poorer hydration resistance than pitch bonded bricks Are used in outer lining of L.D. converters ANSWER DOWNLOAD EXAMIANS APP
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