Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because There are chances of explosion during preheating It reduces its flame temperature tremendously It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating It reduces its flame temperature tremendously It reduces its calorific value tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High sulphur (4-6%) coal in India are found in Assam Madhya Pradesh Andhra Pradesh Bengal Assam Madhya Pradesh Andhra Pradesh Bengal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon Requires smaller combustion space and less secondary air Is less liable to spontaneous combustion on storage Is more difficult to ignite and produces a shorter flame None of these Requires smaller combustion space and less secondary air Is less liable to spontaneous combustion on storage Is more difficult to ignite and produces a shorter flame None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Cannel coal and boghead coal are the examples of None of these Humic coals Sapropelic coals Liptobiolites None of these Humic coals Sapropelic coals Liptobiolites ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Largest constituent of coke oven gas is CO₂ N₂ CH₄ H₂ CO₂ N₂ CH₄ H₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The bright glow of a combustion process is the characteristic of __________ temperature oxidation of coal. Fast & slow Slow & low Fast & high Slow & high Fast & slow Slow & low Fast & high Slow & high ANSWER DOWNLOAD EXAMIANS APP
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