Fuels and Combustion During the carbonisation of coal All tar is evolved at < 600°C Hard semi-coke starts shrinking at 600°C All of these Evolution of H₂ and formation of methane and aromatics occur at > 700°C All tar is evolved at < 600°C Hard semi-coke starts shrinking at 600°C All of these Evolution of H₂ and formation of methane and aromatics occur at > 700°C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion As the C/H ratio of the fuel increases, the amount of CO₂ formed on combustion __________ for the same percentage of excess air. May increase or decrease depending on the type of fuel Increases Remains same Decreases May increase or decrease depending on the type of fuel Increases Remains same Decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Natural draft created by the chimney depends upon Its height Both A & B Temperature of the flue gas Neither A nor B Its height Both A & B Temperature of the flue gas Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Air/gas ratio for complete combustion will be the highest for Coke oven gas Gobar gas LPG Carburetted water gas Coke oven gas Gobar gas LPG Carburetted water gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following constituents of coal is the most important in the production of coke? Ash Carbon Volatiles Moisture Ash Carbon Volatiles Moisture ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following petrological constitutes is responsible for bright and lustrous black band of bituminous coal? Fussain Durain Vitrain Clarain Fussain Durain Vitrain Clarain ANSWER DOWNLOAD EXAMIANS APP
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