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 Oxygen content progressively decreases Calorific value of the coal increases Ratio of fixed carbon to volatile matter increases High rank coals have higher amount of volatile matter Oxygen content progressively decreases Calorific value of the coal increases Ratio of fixed carbon to volatile matter increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation of stored coal results in the All of these Decrease in its carbon & hydrogen content Decrease in its caking power & calorific value Increase in its oxygen content All of these Decrease in its carbon & hydrogen content Decrease in its caking power & calorific value Increase in its oxygen content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following has the highest calorific value? Peat Lignite Sub-bituminous coal Anthracite Peat Lignite Sub-bituminous coal Anthracite ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Volatile matter content of metallurgical coke may be around __________ percent. 10-15 22-26 30-33 1-2 10-15 22-26 30-33 1-2 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good quality coal should have High ash content Low fusion point of ash High sulphur None of these High ash content Low fusion point of ash High sulphur None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Mott and Wheeler test is conducted on coke to find its Reactivity with O₂ Phosphorus content Abradability Volatile matter content Reactivity with O₂ Phosphorus content Abradability Volatile matter content ANSWER DOWNLOAD EXAMIANS APP
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