Refractory Technology The linear thermal expansion of __________ bricks upto 1000 °C is very low of the order of ≤ 0.5 percent. Silica Corundum Fireclay Magnesite Silica Corundum Fireclay Magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is a basic refractory? None of these Silica Fireclay Chrome magnesite None of these Silica Fireclay Chrome magnesite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractoriness/fusion points of 'superduty' refractories is __________ °C. 1520-1630 1630-1670 > 2000 > 1730 1520-1630 1630-1670 > 2000 > 1730 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Periclase refractory contains mainly SiO₂ CaO MgO Al2O₃ SiO₂ CaO MgO Al2O₃ ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Resistance to slag attack of a refractory Decreases, if defective joints & cracks exist in the refractory Decreases at higher temperature All of these Depends on the nature of slag & refractory Decreases, if defective joints & cracks exist in the refractory Decreases at higher temperature All of these Depends on the nature of slag & refractory ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology In panel test for spalling resistance, the average face temperature of panel assembly is maintained at __________ °C for 24 hours. 1600 700 1000 2000 1600 700 1000 2000 ANSWER DOWNLOAD EXAMIANS APP