Fuels and Combustion Steam is intermittently admitted into the fuel bed during the production of producer gas to Minimise the chances of clinker formation Convert CO to CO₂ Increase the combustion rate Increase the gas production rate Minimise the chances of clinker formation Convert CO to CO₂ Increase the combustion rate Increase the gas production rate ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Quantity of coke produced from metallurgical coal may be around __________ percent. 95 50 30 75 95 50 30 75 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion With increase in C/H ratio of a fuel, the dew point of flue gases Remains same Decreases Increases May increase or decrease ; depends on the type of fuel Remains same Decreases Increases May increase or decrease ; depends on the type of fuel ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion C.V. (kcal/Nm³) of gaseous fuels __________ with increase in molecular weight. May increase or decrease, depends on combustibles Increases Decreases Remains constant May increase or decrease, depends on combustibles Increases Decreases Remains constant 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 Have proper combustion by supplying it around the burner Burn CO to CO₂ Dry and transport the coal Preheat the tertiary air used for complete combustion of CO to CO₂ Have proper combustion by supplying it around the burner Burn CO to CO₂ ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of free moisture in coal during its high temperature carbonisation Reduces the coking time Increases the loss of fine coal dust from the ovens when charging None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls Reduces the coking time Increases the loss of fine coal dust from the ovens when charging None of these Protects the volatile products from pyrolysis (cracking) in the presence of hot coke and hot oven walls ANSWER DOWNLOAD EXAMIANS APP
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