Refractory Technology Which property of refractories is the most important for top section of the blast furnace? Resistance to corrosion by slag Resistance to slag peneration Resistance to abrasion Stability of volume at high temperature Resistance to corrosion by slag Resistance to slag peneration Resistance to abrasion Stability of volume at high temperature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica below 870°C ? Quartz Cristobalite None of these Tridymite Quartz Cristobalite None of these Tridymite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Chromite refractories are Acidic refractory Fired at a temperature of 600°C only Basic refractory Neutral refractory Acidic refractory Fired at a temperature of 600°C only Basic refractory Neutral refractory ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Most Cermets, which normally have high thermal conductivity and high thermal shock resistance, comprises of ceramic & metallic components of __________ percent respectively. 50 and 50 80 and 20 60 and 40 20 and 80 50 and 50 80 and 20 60 and 40 20 and 80 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractories are exclusively used in the Hearth of blast furnace Regenerators of coke oven Walls of coke oven Side wall of soaking pits Hearth of blast furnace Regenerators of coke oven Walls of coke oven Side wall of soaking pits ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Zirconia refractories are not used in High frequency induction furnaces in the form of inductors Lining high temperature ceramic kilns Making sheaths for thermocouple Furnaces subjected to fluctuating temperature High frequency induction furnaces in the form of inductors Lining high temperature ceramic kilns Making sheaths for thermocouple Furnaces subjected to fluctuating temperature ANSWER DOWNLOAD EXAMIANS APP
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