Fuels and Combustion In low temperature carbonisation of coal as compared to high temperature carbonisation __________ produced is less. Difference in gross & net calorific value of the coke oven gas Yield percentage of coke Yield of ammonia present in coke oven gas Free carbon content in tar Difference in gross & net calorific value of the coke oven gas Yield percentage of coke Yield of ammonia present in coke oven gas Free carbon content in tar ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The weathering index of a coal Is a measure of its size stability, when stored & exposed to weather Is related to its calorific value Is a measure of its caking tendency Gives an idea of the fusion temperature of ash Is a measure of its size stability, when stored & exposed to weather Is related to its calorific value Is a measure of its caking tendency Gives an idea of the fusion temperature of ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Spontaneous combustion of coal on storage results due to All of these Low temperature oxidation Inadequate ventilation Storage in large heaps with small surface to volume ratio All of these Low temperature oxidation Inadequate ventilation Storage in large heaps with small surface to volume ratio ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is a poisonous fuel gas? Natural gas Coke oven gas None of these Blast furnace gas Natural gas Coke oven gas None of these Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coal is heated in absence of air for 7 minutes at a temperature of about __________ °C, during its volatile matter determination for proximate analysis. 550 1150 950 750 550 1150 950 750 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accounts for maximum energy loss in a boiler? Unburnt carbon in flue gases Incomplete combustion Flue gases Ash content in the fuel Unburnt carbon in flue gases Incomplete combustion Flue gases Ash content in the fuel ANSWER DOWNLOAD EXAMIANS APP
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