Fuels and Combustion Lignite is A high rank coal A black banded coal which burns with a non-smoky yellowish flame A coking coal Can be used for gasification and steam generation A high rank coal A black banded coal which burns with a non-smoky yellowish flame A coking coal Can be used for gasification and steam generation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High rate of heating of coke ovens Produces larger size coke May damage its walls due to abrupt excessive swelling of coal None of these Increases the time of carbonisation Produces larger size coke May damage its walls due to abrupt excessive swelling of coal None of these Increases the time of carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pulverised coal used in boiler firing need not have High fusion point of its ash Less moisture content Lower ash content High bulk density High fusion point of its ash Less moisture content Lower ash content High bulk density ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas is a better fuel than blast furnace gas, because of its higher Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) Adiabatic flame temperature Heat release rate (thus requiring smaller combustion chamber) All of these Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity) Adiabatic flame temperature Heat release rate (thus requiring smaller combustion chamber) All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest calorific value (kcal/Nm³) ? Natural gas Gobar gas Carburetted water gas LPG Natural gas Gobar gas Carburetted water gas LPG ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Oxygen percentage (by weight) in atmospheric air is 21 19 29 23 21 19 29 23 ANSWER DOWNLOAD EXAMIANS APP
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