Fuels and Combustion Use of excess of combustion air in the combustion of fuels results in Heat losses Condensation of water vapour from the fuel gas None of these Long flame Heat losses Condensation of water vapour from the fuel gas None of these Long flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Cannel coal All of these Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named Has a high volatile matter content and burns with a luminous smoky flame Is non-coking All of these Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named Has a high volatile matter content and burns with a luminous smoky flame Is non-coking ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ratio of primary air to secondary air increases with increase in the rank of coal, because the High rank coals have higher amount of volatile matter Calorific value of the coal increases Oxygen content progressively decreases Ratio of fixed carbon to volatile matter increases High rank coals have higher amount of volatile matter Calorific value of the coal increases Oxygen content progressively decreases Ratio of fixed carbon to volatile matter increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Largest constituent of blast furnace gas is CO CO₂ N₂ H₂ CO CO₂ N₂ H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Increases the loss of fine coal dust from the ovens when charging Reduces the coking time None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Increases the loss of fine coal dust from the ovens when charging Reduces the coking time None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest flame velocity? C₂H₆ CO H₂ CH₄ C₂H₆ CO H₂ CH₄ ANSWER DOWNLOAD EXAMIANS APP
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