Fuels and Combustion A sample of natural gas containing 80% methane (CH₄) and rest nitrogen (N₂) is burnt with 20% excess air. With 80% of the combustibles producing CO₂ and the reminder going to CO, the Orsat analysis in volume percent is CO₂ : 7.60, CO : 1.90, O₂ : 4.75, N₂ : 85.74 CO₂ : 7.42, CO : 1.86, O₂ : 4.64, N₂:86.02 CO₂ : 6.26, CO : 1.56, O₂ : 3.91, H₂O :15.66, N₂ : 72.60 CO₂ : 6.39, CO : 1.60, O₂ : 3.99, H₂O:25.96, N₂:72.06 CO₂ : 7.60, CO : 1.90, O₂ : 4.75, N₂ : 85.74 CO₂ : 7.42, CO : 1.86, O₂ : 4.64, N₂:86.02 CO₂ : 6.26, CO : 1.56, O₂ : 3.91, H₂O :15.66, N₂ : 72.60 CO₂ : 6.39, CO : 1.60, O₂ : 3.99, H₂O:25.96, N₂:72.06 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main advantage of forced draft over natural draft is that Smaller height chimney can be used Combustion of fuel is complete All of these Furnace control is easier Smaller height chimney can be used Combustion of fuel is complete All of these Furnace control is easier ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having higher volatile matter content, has lower Coke oven gas yield on carbonisation Ignition temperature Chance of catching fire during storage in open space Smoking tendency on burning Coke oven gas yield on carbonisation Ignition temperature Chance of catching fire during storage in open space Smoking tendency on burning ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a measure of the agglutinating (i.e., binding) property of coal? Caking index Gray-king index Swelling index Thickness of plastic layer Caking index Gray-king index Swelling index Thickness of plastic layer ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hard pitch is used for making Perfumes Insecticides Plastics Pulverised fuel Perfumes Insecticides Plastics Pulverised fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation of coal compared to low temperature carbonisation Aromatic content of tar is low Yield of ammonia is less Calorific value of the coke oven gas is lower H₂ content in the coke oven gas is more Aromatic content of tar is low Yield of ammonia is less Calorific value of the coke oven gas is lower H₂ content in the coke oven gas is more ANSWER DOWNLOAD EXAMIANS APP
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