Fuels and Combustion The advantage of firing pulverised coal in the furnace lies in the fact, that it All of these Permits the use of low fusion point ash coal Accelerates the burning rate and economises on fuel combustion Permits the use of high ash content coal All of these Permits the use of low fusion point ash coal Accelerates the burning rate and economises on fuel combustion Permits the use of high ash content coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal gasifier opearating at 20 atm. (e.g. Lugri gasifier) as compared to one operating at atmospheric pressure (e.g. Kopper-Totzek or Winkler gasifier) will produce a gas having Lower carbon dioxide content Higher carbon monoxide content Higher methane content and thus higher calorific value None of these Lower carbon dioxide content Higher carbon monoxide content Higher methane content and thus higher calorific value None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of a gaseous fuel results in increased Flame length Ignition temperature Flame temperature Quantity of flue gas Flame length Ignition temperature Flame temperature Quantity of flue gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in the time of carbonisation at a particular temperature (say 1000°C), the __________ percentage in coke oven gas increases. Unsaturated hydrocarbons Methane All of these Hydrogen Unsaturated hydrocarbons Methane All of these Hydrogen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During its calorific value determination by bomb calorimeter, coal is combusted by Oxygen enriched air None of these Oxygen Air Oxygen enriched air None of these Oxygen Air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke made in narrower by-product coke ovens (as compared to wider ovens) is Stronger Smaller in size All of these Less reactive Stronger Smaller in size All of these Less reactive ANSWER DOWNLOAD EXAMIANS APP
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