Fuels and Combustion The optimum percentage of excess air for combustion depends upon the __________ of the fuel. Sulphur content Calorific value Type (solid, liquid or gaseous) Ignition temperature Sulphur content Calorific value Type (solid, liquid or gaseous) Ignition temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the __________ of coal. Gasification Hydrogenation Carbonisation None of these Gasification Hydrogenation Carbonisation None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Largest constituent of coke oven gas is CH₄ H₂ N₂ CO₂ CH₄ H₂ N₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A carbonaceous fuel (containing no H₂ or hydrocarbons) is burnt and the resulting flue gas contains 21% CO₂. It means that 21% excess air has been used for combustion 21% excess oxygen has been used for combustion Complete combustion of fuel has taken place No excess air has been used for combustion 21% excess air has been used for combustion 21% excess oxygen has been used for combustion Complete combustion of fuel has taken place No excess air has been used for combustion ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is heated in presence of air to a temperature of about __________ °C, while determining its ash content for proximate analysis. 950 750 500 1100 950 750 500 1100 ANSWER DOWNLOAD EXAMIANS APP
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