Refractory Technology Tar bonded dolomite bricks All of these Are stored under controlled temperature & humidity to avoid hydration Have poorer hydration resistance than pitch bonded bricks Are used in outer lining of L.D. converters All of these Are stored under controlled temperature & humidity to avoid hydration Have poorer hydration resistance than pitch bonded bricks Are used in outer lining of L.D. converters ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Sillimanite is a __________ refractory. High alumina Basic Neutral Insulating High alumina Basic Neutral Insulating ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which form of silica has the highest specific gravity? Quartz Cristobalite All of these Tridymite Quartz Cristobalite All of these Tridymite ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology What is Thoria? Thoria Has high fusion temperature (> 3000°C) but poor resistance to thermal shock Thoria Has high resistance to basic slags All of these Which is expensive & radioactive, is used in crucibles for melting high purity metals Thoria Has high fusion temperature (> 3000°C) but poor resistance to thermal shock Thoria Has high resistance to basic slags All of these Which is expensive & radioactive, is used in crucibles for melting high purity metals 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
EXAMIANS