Refractory Technology Which of the following does not occur during firing/burning of refractories? Vitrification Decrease in crushing strength Removal of water of hydration Development of stable mineral form Vitrification Decrease in crushing strength Removal of water of hydration Development of stable mineral form ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Rate of slag attack on refractories increases with rise in temperature due to the Decreased viscosity of slag Oxidising condition in the furnace Increased thermal conductivity of brick None of these Decreased viscosity of slag Oxidising condition in the furnace Increased thermal conductivity of brick None of these ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology __________ of carbon blocks in the hearth of blast furnace helps in avoiding skull formation, when it becomes cold. Low porosity High density Non-wetting characteristics High thermal conductivity Low porosity High density Non-wetting characteristics High thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology Bottom of basic open hearth furnace are constructed of Semi-silica bricks Silicon carbide bricks Dead burnt magnesite ramming mass Porous fireclay bricks Semi-silica bricks Silicon carbide bricks Dead burnt magnesite ramming mass Porous fireclay bricks ANSWER DOWNLOAD EXAMIANS APP
Refractory Technology High refractorinness of refractory bricks means, that it has a High resistance to fusion Low spalling resistance Low porosity High spalling resistance High resistance to fusion Low spalling resistance Low porosity High spalling resistance ANSWER DOWNLOAD EXAMIANS APP
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