Fuels and Combustion High sulphur content in a fuel __________ of the flue gases. Reduces the combustion efficiency by limiting the permissible temperature reduction Decreases the dew point Increases the dew point Both B & C Reduces the combustion efficiency by limiting the permissible temperature reduction Decreases the dew point Increases the dew point Both B & C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Washing of coal Controls its ash fusibility and increases its calorific value All of these Improves its coking properties Reduces its sulphur and ash content Controls its ash fusibility and increases its calorific value All of these Improves its coking properties Reduces its sulphur and ash content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Function of secondary air in pulverised coal firing is to Dry the coal Ensure efficient burning of coal around the burner Reduce primary air requirement Transport the coal to the burner Dry the coal Ensure efficient burning of coal around the burner Reduce primary air requirement Transport the coal to the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Most of the coking coals are Bituminous Anthracite None of these Lignite Bituminous Anthracite None of these Lignite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gross and net calorific value of a fuel will be the same If its ash content is zero Under no circumstances Ifits carbon content is very low If its hydrogen/hydrogen compound content is zero If its ash content is zero Under no circumstances Ifits carbon content is very low If its hydrogen/hydrogen compound content is zero ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main drawback of supplying more excess air in the combustion of fuel is the Enhanced sensible heat loss in the flue gas Excessive power requirement of air blower Intermittant and uncontrolled combustion of the fuel High exit flue gas temperature from the furnace Enhanced sensible heat loss in the flue gas Excessive power requirement of air blower Intermittant and uncontrolled combustion of the fuel High exit flue gas temperature from the furnace ANSWER DOWNLOAD EXAMIANS APP
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