Fuels and Combustion Ash content in the coke produced from a coking coal having 20% ash may be around __________ percent. 12 18 6 24 12 18 6 24 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High rate of heating of coke ovens Increases the time of carbonisation None of these May damage its walls due to abrupt excessive swelling of coal Produces larger size coke Increases the time of carbonisation None of these May damage its walls due to abrupt excessive swelling of coal Produces larger size coke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation of coal compared to low temperature carbonisation Aromatic content of tar is low Calorific value of the coke oven gas is lower H₂ content in the coke oven gas is more Yield of ammonia is less Aromatic content of tar is low Calorific value of the coke oven gas is lower H₂ content in the coke oven gas is more Yield of ammonia is less ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gross and net calorific value of a fuel will be the same Under no circumstances If its ash content is zero Ifits carbon content is very low If its hydrogen/hydrogen compound content is zero Under no circumstances If its ash content is zero Ifits carbon content is very low If its hydrogen/hydrogen compound content is zero ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mott and Wheeler test is conducted on coke to find its Phosphorus content Reactivity with O₂ Abradability Volatile matter content Phosphorus content Reactivity with O₂ Abradability Volatile matter content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bright coal Contains more than 90% durain Contains more than 90% fussain Is non-coking Contains mainly vitrain & clarain and is generally coking Contains more than 90% durain Contains more than 90% fussain Is non-coking Contains mainly vitrain & clarain and is generally coking ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS