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. 350 750 1250 1050 350 750 1250 1050 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Use of pulverised coal in boilers provides Smokeless burning Higher calorific value Less erosion on furnace wall Better combustion Smokeless burning Higher calorific value Less erosion on furnace wall Better combustion 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 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 Use of excessive positive draft in the furnace Use of pulverised solid fuels ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following is a directly fired intermittant furnace? Tunnel kiln Tower furnace Walking beam reheating furnace Reverberatory furnace Tunnel kiln Tower furnace Walking beam reheating furnace Reverberatory furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Maximum thermal efficiency of boiler may be about __________ percent. 65 25 90 10 65 25 90 10 ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Which of the following furnaces will have maximum thermal efficiency? Soaking pits Rotary kilns Boiler furnace Walking beam reheating furnace Soaking pits Rotary kilns Boiler furnace Walking beam reheating furnace ANSWER DOWNLOAD EXAMIANS APP
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