Fuels and Combustion The reaction, C + CO₂ ⟷ 2CO, taking place during coal gasification is called the __________ reaction. n. Neumann reversal Reduction Boudouard Shift conversion Neumann reversal Reduction Boudouard Shift conversion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ignition temperature of a fuel in air is __________ that in pure oxygen. Either more or less; depends on the type of fuel More than Less than Equal to Either more or less; depends on the type of fuel More than Less than Equal to ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coking of coal, the ash content (percentage) Remains constant Increases Decreases None of these Remains constant Increases Decreases None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion If oxygen content in the flue gas rises too high, fuel is being wasted by Incomplete combustion None of these Dry gas/stack gas loss Moisture loss Incomplete combustion None of these Dry gas/stack gas loss Moisture loss ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not increased by using preheated combustion air in place of ordinary air at room temperature? Calorific value of the fuel Speed of combustion of fuel Heat transfer rate to the stock in the furnace Flame temperature achieved Calorific value of the fuel Speed of combustion of fuel Heat transfer rate to the stock in the furnace Flame temperature achieved ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gray King Assay and Swelling Index of a coal is a measure of its Swelling characteristics Resistance to impact breakage Agglutinating properties Abradability Swelling characteristics Resistance to impact breakage Agglutinating properties Abradability ANSWER DOWNLOAD EXAMIANS APP
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