Fuels and Combustion Washing of coal does not reduce its Heating value Fusion point of ash None of these S & P content Heating value Fusion point of ash None of these S & P content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ratio of primary air to secondary air increases with increase in the rank of coal, because the High rank coals have higher amount of volatile matter Calorific value of the coal increases Ratio of fixed carbon to volatile matter increases Oxygen content progressively decreases High rank coals have higher amount of volatile matter Calorific value of the coal increases Ratio of fixed carbon to volatile matter increases Oxygen content progressively decreases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High ash containing coke Has poor strength and abrasion resistance Is desirable in producer gas manufacture None of these Produces more slag when used in the blast furnace Has poor strength and abrasion resistance Is desirable in producer gas manufacture None of these Produces more slag when used in the blast furnace ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The maximum adiabatic flame temperature in air as compared to that in pure oxygen is Same Either lower or higher, depends on the type of fuel Much higher Much lower Same Either lower or higher, depends on the type of fuel Much higher Much lower ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High rate of heating of coke ovens None of these Produces larger size coke Increases the time of carbonisation May damage its walls due to abrupt excessive swelling of coal None of these Produces larger size coke Increases the time of carbonisation May damage its walls due to abrupt excessive swelling of coal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion In high temperature carbonisation of coal compared to low temperature carbonisation Yield of ammonia is less Aromatic content of tar is low Hâ‚‚ 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 Hâ‚‚ content in the coke oven gas is more Calorific value of the coke oven gas is lower ANSWER DOWNLOAD EXAMIANS APP
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