Refractory Technology Fireclay bricks are never used in the Beehive oven Zinc roaster Lead blast furnace Coke oven walls Beehive oven Zinc roaster Lead blast furnace Coke oven walls ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in All of these Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production Less shrinkage in heating, decreased apparent porosity & increased specific gravity High strength & thermal spalling resistance All of these Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production Less shrinkage in heating, decreased apparent porosity & increased specific gravity High strength & thermal spalling resistance ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Carbon refractory blocks Are wetted by molten iron Are used in the hearth of blast furnace All of these Are acidic in nature Are wetted by molten iron Are used in the hearth of blast furnace All of these Are acidic in nature ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dolomite bricks have good resistance to attack by Lime slag Iron oxide Molten steel None of these Lime slag Iron oxide Molten steel None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Porosity of fireclay refractories is __________ percent. 44129 25-35 43961 35-50 44129 25-35 43961 35-50 ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Which is the stable form of silica below 870°C ? Quartz Tridymite None of these Cristobalite Quartz Tridymite None of these Cristobalite ANSWER DOWNLOAD EXAMIANS APP