Furnace Technology In practical operation of any furnace, zero oxygen percentage or theoretical CO₂ percentage in flue gas is rarely achieved, because of Imperfect mixing of fuel & air and infiltration of air Use of non-preheated combustion air Use of pulverised solid fuels Use of excessive positive draft in the furnace Imperfect mixing of fuel & air and infiltration of air Use of non-preheated combustion air Use of pulverised solid fuels Use of excessive positive draft in the furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology __________ is an indirectly heated furnace. Open hearth furnace Reheating furnace Soaking pit Muffle furnace Open hearth furnace Reheating furnace Soaking pit Muffle furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following variables does not affect the furnace capacity? Size of the furnace None of these Ratio of wall surface to surface of stock Gas velocity in furnace Size of the furnace None of these Ratio of wall surface to surface of stock Gas velocity in furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Heat transfer rate to the charge/stock in a furnace does not depend upon the Flue gas temperature Initial temperature of the charged stock Type of fuels viz solid, liquid or gaseous Emissivity of refractory walls Flue gas temperature Initial temperature of the charged stock Type of fuels viz solid, liquid or gaseous Emissivity of refractory walls ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Reducing atmosphere is maintained in a L.D. converter Calcination kiln Blast furnace Soaking pit L.D. converter Calcination kiln Blast furnace Soaking pit ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent. 20 80 40 60 20 80 40 60 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS