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 Cold crushing strength of a refractory does not depend upon its Shape Texture Firing temperature Composition Shape Texture Firing temperature Composition ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Refractory bricks having lower porosity have Low heat capacity High insulating properties Low thermal conductivity Greater strength Low heat capacity High insulating properties Low thermal conductivity Greater strength ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Addition of grog in fireclay brick during its manufacture is advantageous, because it results in 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 All of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Spalling resistance of a refractory can not be increased by Decreasing its thermal co-efficient of expansion Increasing its porosity Using a coarser grog during its manufacture Making it denser Decreasing its thermal co-efficient of expansion Increasing its porosity Using a coarser grog during its manufacture Making it denser ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Magnesite chrome bricks are used in the Reheating furnaces Roof lining of basic open hearth & other basic furnaces All of these Soaking pits Reheating furnaces Roof lining of basic open hearth & other basic furnaces All of these Soaking pits ANSWER DOWNLOAD EXAMIANS APP
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