Fuels and Combustion Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing? Ash disposal problem High power consumption in its transportation Erosion of induced draft fan blades Excessive fly-ash discharge from the stack Ash disposal problem High power consumption in its transportation Erosion of induced draft fan blades Excessive fly-ash discharge from the stack ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation of coal compared to low temperature carbonisation Calorific value of the coke oven gas is lower Yield of ammonia is less Aromatic content of tar is low H₂ content in the coke oven gas is more Calorific value of the coke oven gas is lower Yield of ammonia is less Aromatic content of tar is low H₂ content in the coke oven gas is more ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following coal gasification processes will produce gas having maximum methane content? Winkler process Lurgi process Kopper-Totzek process All of these Winkler process Lurgi process Kopper-Totzek process All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Air/gas ratio for complete combustion will be the highest for Gobar gas LPG Carburetted water gas Coke oven gas Gobar gas LPG Carburetted water gas Coke oven gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Blast furnace gas is a very poisonous gas because of its predominantly high __________ content. CO CO₂ CH₄ H₂O CO CO₂ CH₄ H₂O ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking time in narrow by-product coke ovens is around __________ hours. 8 48 18 80 8 48 18 80 ANSWER DOWNLOAD EXAMIANS APP
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