Furnace Technology Overfire burning in a furnace is a phenomenon characterised by Supply of excess fuel None of these Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air Supply of excess air Supply of excess fuel None of these Burning carbon monoxide and other incombustible in upper zone of furnace by supplying more air Supply of excess air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology The function of an economiser in a boiler is to preheat the Pulverised coal Furnace oil Feedwater Combustion air Pulverised coal Furnace oil Feedwater Combustion air ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Circulation of gases in furnace is caused by the Change in volume during a change of temperature All of these Furnace pressure in conjunction with draft in flues Difference in density between hot and cold gases Change in volume during a change of temperature All of these Furnace pressure in conjunction with draft in flues Difference in density between hot and cold gases ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology Dampers are located Near the top of the chimney Anywhere after the I.D. fan Before the I.D fan After the I.D. fan Near the top of the chimney Anywhere after the I.D. fan Before the I.D fan After the I.D. fan 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 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 Use of excessive positive draft in the furnace ANSWER DOWNLOAD EXAMIANS APP
Furnace Technology In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of Preheating the primary air Drying of coal Combustion of coal by supplying it around the burner Transportation of coal Preheating the primary air Drying of coal Combustion of coal by supplying it around the burner Transportation of coal ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS