Fuels and Combustion Hardgrove grindability index of four coal samples are given below. Which of them is the easiest to grind? 85 100 50 70 85 100 50 70 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be None of these High Low Very high, if the fuel is of low calorific value None of these High Low Very high, if the fuel is of low calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main drawback of supplying more excess air in the combustion of fuel is the Intermittant and uncontrolled combustion of the fuel High exit flue gas temperature from the furnace Excessive power requirement of air blower Enhanced sensible heat loss in the flue gas Intermittant and uncontrolled combustion of the fuel High exit flue gas temperature from the furnace Excessive power requirement of air blower Enhanced sensible heat loss in the flue gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air as compared to that in pure oxygen is Either lower or higher, depends on the type of fuel Much lower Same Much higher Either lower or higher, depends on the type of fuel Much lower Same Much higher ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The cuprous chloride used in orsat apparatus can absorb Both CO and O₂ All of these Both CO and CO₂ Only CO Both CO and O₂ All of these Both CO and CO₂ Only CO ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace gas burns with a bluish flame, because of the presence of S CO₂ CH₄ CO S CO₂ CH₄ CO ANSWER DOWNLOAD EXAMIANS APP
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