Fuels and Combustion Which of the following has the highest flame speed? H₂ CH₄ C₂H₆ CO H₂ CH₄ C₂H₆ CO ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Incomplete combustion of a fuel is characterised by the high __________ in the flue gas. Oxygen Temperature Carbon monoxide Smoke Oxygen Temperature Carbon monoxide Smoke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Steam is intermittently admitted into the fuel bed during the production of producer gas to Increase the combustion rate Convert CO to CO₂ Minimise the chances of clinker formation Increase the gas production rate Increase the combustion rate Convert CO to CO₂ Minimise the chances of clinker formation Increase the gas production rate ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace coke is made from coal by Heating the coal in an oven in presence of air Low temperature carbonisation Medium temperature carbonisation High temperature carbonisation Heating the coal in an oven in presence of air Low temperature carbonisation Medium temperature carbonisation High temperature carbonisation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Explosion limit of blast furnace gas is 37 to 71% gas in gas-air mixture. It means that the blast furnace gas will explode when burnt in a confined space, if its concentration in the gas-air mixture is __________ percent. None of these < 37% >71% In between 37 & 71% None of these < 37% >71% In between 37 & 71% ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In general, the limit of inflammability/explosion limit of fuel gases is widened by the Increase in gas pressure Increase in temperature (i.e. preheating) All of these Use of pure oxygen for combustion instead of air Increase in gas pressure Increase in temperature (i.e. preheating) All of these Use of pure oxygen for combustion instead of air ANSWER DOWNLOAD EXAMIANS APP
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