Fuels and Combustion Insitu theory and drift theory are related to the Variation of coal quality with depth Origin of petroleum oil Origin of coal Coalification Variation of coal quality with depth Origin of petroleum oil Origin of coal Coalification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During the carbonisation of coal Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All of these All tar is evolved at < 600°C Hard semi-coke starts shrinking at 600°C Evolution of H₂ and formation of methane and aromatics occur at > 700°C All of these All tar is evolved at < 600°C ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bulk density of pulverised coal may be about __________ kg/m³. 1000 500 1500 100 1000 500 1500 100 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be Low High Very high, if the fuel is of low calorific value None of these Low High Very high, if the fuel is of low calorific value None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion If oxygen content in the flue gas rises too high, fuel is being wasted by Incomplete combustion None of these Dry gas/stack gas loss Moisture loss Incomplete combustion None of these Dry gas/stack gas loss Moisture loss ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Main component of sewage gas produced during aneorobic decomposition of organic waste (by suitable bacteria) during sewage disposal is N₂ CH₄ H₂ CO₂ N₂ CH₄ H₂ CO₂ ANSWER DOWNLOAD EXAMIANS APP
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