Fuels and Combustion Which of the following is not a binder for coal briquetting? None of these Coal tar Bitumen Molasses None of these Coal tar Bitumen Molasses ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mineral matter, 'M' and ash percentage 'A' in coal are roughly related as M = A M = 1.1 A M = 0.5 A M = 1.8 A M = A M = 1.1 A M = 0.5 A M = 1.8 A ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Sometimes water is sprayed during coal charging in the coke oven, which helps in Controlling the dust nuisance while charging the coal Reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO & H₂ in the gas (due to the endothermic reaction represented by C + H₂O = CO + H₂) Prevention of clinker formation in the oven All of these Controlling the dust nuisance while charging the coal Reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO & H₂ in the gas (due to the endothermic reaction represented by C + H₂O = CO + H₂) Prevention of clinker formation in the oven All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always 1 Unpredicatable > 1 1 Unpredicatable > 1 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The main drawback of supplying more excess air in the combustion of fuel is the 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 Intermittant and uncontrolled combustion of the fuel High exit flue gas temperature from the furnace ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of force moisture in coal is most disadvantageous during its Washing Pulverisation Transportation and handling Storage Washing Pulverisation Transportation and handling Storage ANSWER DOWNLOAD EXAMIANS APP
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