Fuels and Combustion Spontaneous combustion of coal on storage results due to All of these Inadequate ventilation Low temperature oxidation Storage in large heaps with small surface to volume ratio All of these Inadequate ventilation Low temperature oxidation Storage in large heaps with small surface to volume ratio ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion High excess air in combustion of fuels results in Increased fuel consumption None of these Incomplete combustion Smoky flame Increased fuel consumption None of these Incomplete combustion Smoky flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fossil fuels mean Premature fuels with low calorific value Liquid fuels Those fuels which are found in the crust of earth Solid fuels Premature fuels with low calorific value Liquid fuels Those fuels which are found in the crust of earth Solid fuels ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around __________ percent. 96 20 4 40 96 20 4 40 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The average molecular weight of a flue gas having the composition by volume as CO₂ = 25%, O₂ = 25%, N₂ = 50% will be 27.6 42.9 47.3 23 27.6 42.9 47.3 23 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following accentuates clinker-ing trouble on furnace grate burning coal? All of these Low reactivity of carbonised residue containing high proportions of iron & sulphur Low forced draught and fuel bed temperature Thick fire bed and preheated primary air All of these Low reactivity of carbonised residue containing high proportions of iron & sulphur Low forced draught and fuel bed temperature Thick fire bed and preheated primary air ANSWER DOWNLOAD EXAMIANS APP
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