Furnace Technology Heat transfer rate to the stock/charge in the furnace does not depend upon the Emissivity of the refactory walls Thickness of the stock Use of waste heat recovery equipments Size of the furance Emissivity of the refactory walls Thickness of the stock Use of waste heat recovery equipments Size of the furance ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In practical operation of any furnace, zero oxygen percentage or theoretical CO₂ percentage in flue gas is rarely achieved, because of Use of excessive positive draft in the furnace Use of pulverised solid fuels Use of non-preheated combustion air Imperfect mixing of fuel & air and infiltration of air Use of excessive positive draft in the furnace Use of pulverised solid fuels Use of non-preheated combustion air Imperfect mixing of fuel & air and infiltration of air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Forced recirculation of furnace gases is practised All of these To ensure uniform temperature In furnaces, operating below 750°C To increase heat transfer by convection All of these To ensure uniform temperature In furnaces, operating below 750°C To increase heat transfer by convection ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Large tonnage of refractory bricks are dried in a Shaft furnace Muffle furnace Rotary hearth furnace Tunnel kiln Shaft furnace Muffle furnace Rotary hearth furnace Tunnel kiln ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures. 750 1250 350 1050 750 1250 350 1050 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Artificial draught produced by a fan in the furnace can be controlled by the All of these Variation in the pitch of fan blades Damper Speed of the fan All of these Variation in the pitch of fan blades Damper Speed of the fan ANSWER DOWNLOAD EXAMIANS APP
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