Refractory Technology Lower part of hot metal mixer are lined with __________ bricks. Carborundum Silica High alumina Superduty fireclay Carborundum Silica High alumina Superduty fireclay ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Grog addition in fireclay during brick manufacture is done to Enhance the strength of fired refractories Impart greater spalling resistance Reduce its shrinkage on heating All of these Enhance the strength of fired refractories Impart greater spalling resistance Reduce its shrinkage on heating All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High alumina refractories are used in the All of these Glass melting furnaces Dome of blast furnace stoves Electric arc furnace roof All of these Glass melting furnaces Dome of blast furnace stoves Electric arc furnace roof ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Tar bonded dolomite bricks All of these Have poorer hydration resistance than pitch bonded bricks Are stored under controlled temperature & humidity to avoid hydration Are used in outer lining of L.D. converters All of these Have poorer hydration resistance than pitch bonded bricks Are stored under controlled temperature & humidity to avoid hydration Are used in outer lining of L.D. converters ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Dilatometer is used for the determination of __________ of refractories. Modulus of rupture Resistance to CO attack RUL Permanent linear change Modulus of rupture Resistance to CO attack RUL Permanent linear change ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in All of these High strength & thermal spalling resistance Less shrinkage in heating, decreased apparent porosity & increased specific gravity Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production All of these High strength & thermal spalling resistance Less shrinkage in heating, decreased apparent porosity & increased specific gravity Less addition of water to get a workable plasticity & lesser time required for drying the raw refractories and hence increased rate of production ANSWER DOWNLOAD EXAMIANS APP
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