Fuels and Combustion Higher efficiency in the combustion of solid fuel can not be achieved by Proper fuel preparation Adopting efficient-fuel firing technique & equipment Keeping the flue gas exhaust temperature very high Supplying correct quantity of combustion air Proper fuel preparation Adopting efficient-fuel firing technique & equipment Keeping the flue gas exhaust temperature very high Supplying correct quantity of combustion air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the Lack of thorough mixing of fuel with air High sulphur content in the fuel Presence of large quantity of hydrogen in the fuel Low calorific value of the fuel Lack of thorough mixing of fuel with air High sulphur content in the fuel Presence of large quantity of hydrogen in the fuel Low calorific value of the fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coke oven gas produced by high temperature carbonisation of coal (as compared to that produced by low temperature carbonisation), has Lower hydrogen content Both A & B Neither A nor B Higher calorific value Lower hydrogen content Both A & B Neither A nor B Higher calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bomb calorimeter is used to determine the (where, GCV - Gross Calorific Value. NCV - Net Calorific Value.) GCV at constant volume NCV at constant volume GCV at constant pressure NCV at constant pressure GCV at constant volume NCV at constant volume GCV at constant pressure NCV at constant pressure ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following can be made into briquettes without the use of a binder? None of these Anthracite coal Bituminous coal Lignite None of these Anthracite coal Bituminous coal Lignite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having higher volatile matter content will necessarily have lower Ash fusion temperature Caking index Ignition temperature Calorific value Ash fusion temperature Caking index Ignition temperature Calorific value ANSWER DOWNLOAD EXAMIANS APP
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