Fuels and Combustion C.V. (kcal/Nm³) of gaseous fuels __________ with increase in molecular weight. Decreases Remains constant May increase or decrease, depends on combustibles Increases Decreases Remains constant May increase or decrease, depends on combustibles Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a lean fuel gas? LPG Natural gas Blast furnace gas Coke oven gas LPG Natural gas Blast furnace gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent. 18 24 12 6 18 24 12 6 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Froth floatation is used for All of these Removing ash from the coal based on difference in specific gravity of coal and ash Washing fine coal dust (< 0.5 mm size) Washing lump coal (> 80 mm size) All of these Removing ash from the coal based on difference in specific gravity of coal and ash Washing fine coal dust (< 0.5 mm size) Washing lump coal (> 80 mm size) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Dust content in raw blast furnace gas is about __________ gm/Nm³ , hence it is cleaned to the dust level of about < 10 mg /Nm³ before use. 150-200 43832 15-30 70-100 150-200 43832 15-30 70-100 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having higher volatile matter content will necessarily have lower Calorific value Ash fusion temperature Caking index Ignition temperature Calorific value Ash fusion temperature Caking index Ignition temperature ANSWER DOWNLOAD EXAMIANS APP
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