Fuels and Combustion Calorific value of coke oven gas is around __________ Kcal/Nm³. 7500 2000 4200 900 7500 2000 4200 900 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A sooty flame can be made non-luminous by Admitting more air Admitting more gas Shutting gas supply Shutting air supply Admitting more air Admitting more gas Shutting gas supply Shutting air supply ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The ratio of % total carbon obtained in the ultimate analysis of coke and % fixed carbon obtained in the proximate analysis is always < 1 1 Unpredictable > 1 < 1 1 Unpredictable > 1 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Beehive coke oven Takes 2-3 days for coking of coal but requires no external fuel for heating Produces coke with very poor strength Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens Takes 2-3 days for coking of coal but requires no external fuel for heating Produces coke with very poor strength Facilitates by-products recovery Gives larger yield of coke (around 85%) as compared to by-product ovens ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Width of the coke oven towards coke side is slightly more than that on pusher side to Facilitate uniform heating of the oven None of these Facilitate easy discharging of coke as it swells during carbonisation Increase the output of the coke Facilitate uniform heating of the oven None of these Facilitate easy discharging of coke as it swells during carbonisation Increase the output of the coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accounts for maximum energy loss in a boiler? Incomplete combustion Ash content in the fuel Flue gases Unburnt carbon in flue gases Incomplete combustion Ash content in the fuel Flue gases Unburnt carbon in flue gases ANSWER DOWNLOAD EXAMIANS APP
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