Fuels and Combustion Coking time in beehive coke oven is about 2-3 days 12 hours Two weeks One week 2-3 days 12 hours Two weeks One week ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Steam is intermittently admitted into the fuel bed during the production of producer gas to Increase the combustion rate Increase the gas production rate Convert CO to CO₂ Minimise the chances of clinker formation Increase the combustion rate Increase the gas production rate Convert CO to CO₂ Minimise the chances of clinker formation ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Sometimes water is sprayed during coal charging in the coke oven, which helps in 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 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 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C. 85 145 70 105 85 145 70 105 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a by-product recovered in a high temperature coal carbonisation plant? Ethylene Napthalene Benzol Pitch-cresosote mixture (PCM) Ethylene Napthalene Benzol Pitch-cresosote mixture (PCM) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Purity of coke means that, it is high in carbon and low in Ash Moisture Volatiles Iron Ash Moisture Volatiles Iron ANSWER DOWNLOAD EXAMIANS APP
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