Fuels and Combustion Low temperature oxidation of coal is accelerated by the Storage in compressed piles Storage in large heaps Absence of porous or friable particles All of these Storage in compressed piles Storage in large heaps Absence of porous or friable particles All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of coal middling generated in coal washeries during washing of coal may be around __________ Kcal/kg. 1000 4000 8000 6000 1000 4000 8000 6000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following will be unsuitable for dust cleaning from flue gas at 400°C from a pulverised coal fired boiler ? Multicyclones Hydrocyclones Wet scrubber Bag filter Multicyclones Hydrocyclones Wet scrubber Bag filter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high ratio of volatile matter to fixed carbon as compared to a coal having low ratio of volatile matter to fixed carbon Is less liable to spontaneous combustion on storage None of these Is more difficult to ignite and produces a shorter flame Requires smaller combustion space and less secondary air Is less liable to spontaneous combustion on storage None of these Is more difficult to ignite and produces a shorter flame Requires smaller combustion space and less secondary air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which adsorbant is used for removing sulphur compounds (S Q, H₂S, RSH etc.) removal from coke oven gas in by-products recovery plant ? Silica gel Diatomaceous earth Bog iron (i.e., moist ferric hydroxide) Basalt Silica gel Diatomaceous earth Bog iron (i.e., moist ferric hydroxide) Basalt ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a by-product recovered in a high temperature coal carbonisation plant? Napthalene Ethylene Benzol Pitch-cresosote mixture (PCM) Napthalene Ethylene Benzol Pitch-cresosote mixture (PCM) ANSWER DOWNLOAD EXAMIANS APP
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