Fuels and Combustion C.V. (kcal/Nm³) of gaseous fuels __________ with increase in molecular weight. May increase or decrease, depends on combustibles Remains constant Decreases Increases May increase or decrease, depends on combustibles Remains constant Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following would require maximum amount of % excess air for complete combustion? Furnace oil Coke oven gas Pulverised coal Lump coal (fixed on chain grate) Furnace oil Coke oven gas Pulverised coal Lump coal (fixed on chain grate) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following gaseous fuels is likely to have the highest gross calorific value? Natural gas Producer gas Sewage gas LPG Natural gas Producer gas Sewage gas LPG ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Air/gas ratio for complete combustion will be the highest for Carburetted water gas Coke oven gas Gobar gas LPG Carburetted water gas Coke oven gas Gobar gas LPG ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good quality coal should have Low fusion point of ash High sulphur None of these High ash content Low fusion point of ash High sulphur None of these High ash content 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 better control of furnace temperature Provides higher thermal efficiency & flame temperature Facilitates combustion with lower excess air All of these Provides better control of furnace temperature Provides higher thermal efficiency & flame temperature ANSWER DOWNLOAD EXAMIANS APP
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