Fuels and Combustion Which of the following would require maximum amount of % excess air for complete combustion? Pulverised coal Lump coal (fixed on chain grate) Coke oven gas Furnace oil Pulverised coal Lump coal (fixed on chain grate) Coke oven gas Furnace oil ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Too much of excess air in combustion results in high Fuel consumption for the same heat load All of these Stack gas temperature Percentage of oxygen in flue gases Fuel consumption for the same heat load All of these Stack gas temperature Percentage of oxygen in flue gases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good coking coal should have high __________ content. Sulphur & phosphorus Ash Moisture None of these Sulphur & phosphorus Ash Moisture None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest calorific value (kcal/Nm³) ? Gobar gas Carburetted water gas LPG Natural gas Gobar gas Carburetted water gas LPG Natural gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion of pulverised coal compared to the lumpy coal Facilitates combustion with lower excess air All of these Provides higher thermal efficiency & flame temperature Provides better control of furnace temperature Facilitates combustion with lower excess air All of these Provides higher thermal efficiency & flame temperature Provides better control of furnace temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Yield of coke oven gas in low temperature carbonisation of coal is about __________ Nm³ /ton of dry coal. 750 60 500 160 750 60 500 160 ANSWER DOWNLOAD EXAMIANS APP
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