Fuels and Combustion When steam is passed over coal resulting in the endothermic reaction represent by, C + H₂O = CO + H₂, it is called the __________ of coal. Gasification Coalification Carbonisation Oxidation Gasification Coalification Carbonisation Oxidation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main function of primary air in pulverised coal fired burner is to Dry and transport the coal Preheat the tertiary air used for complete combustion of CO to CO₂ Burn CO to CO₂ Have proper combustion by supplying it around the burner Dry and transport the coal Preheat the tertiary air used for complete combustion of CO to CO₂ Burn CO to CO₂ Have proper combustion by supplying it around the burner ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The most matured coal out of the following is Semi-anthracite Sub-bituminous Bituminous Lignite Semi-anthracite Sub-bituminous Bituminous Lignite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gray King Assay and Swelling Index of a coal is a measure of its Resistance to impact breakage Swelling characteristics Abradability Agglutinating properties Resistance to impact breakage Swelling characteristics Abradability Agglutinating properties ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation (as compared to low temperature carbonisation) of coal, the Tar yield is more Gas yield is less Ignition temperature of coke produced is less Aromatic content of tar produced is more Tar yield is more Gas yield is less Ignition temperature of coke produced is less Aromatic content of tar produced is more ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest calorific value (kcal/Nm³) ? Natural gas Carburetted water gas LPG Gobar gas Natural gas Carburetted water gas LPG Gobar gas ANSWER DOWNLOAD EXAMIANS APP
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