Fuels and Combustion Spontaneous combustion of coal on storage results due to Low temperature oxidation Storage in large heaps with small surface to volume ratio Inadequate ventilation All of these Low temperature oxidation Storage in large heaps with small surface to volume ratio Inadequate ventilation All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Method of maintaining fires in furnace during standby periods without undue consumption of fuel is called None of these Under pressurising Banking Back draughting None of these Under pressurising Banking Back draughting ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tar yield in the low temperature and high temperature carbonisation of dry coal may be respectively __________ percent. 10 & 3 15 & 8 10 & 20 3 & 10 10 & 3 15 & 8 10 & 20 3 & 10 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good quality coal should have None of these High sulphur Low fusion point of ash High ash content None of these High sulphur Low fusion point of ash High ash content ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gas yield in the Kopper-Totzek coal gasifier is about __________ Nm³/ton coal (ash = 35%). 150 1500 3500 5000 150 1500 3500 5000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of combustion air is done to Complete the combustion of fuel Reduce its requirement for effecting the complete combustion Increase the adiabatic flame temperature Increase the calorific value of the fuel Complete the combustion of fuel Reduce its requirement for effecting the complete combustion Increase the adiabatic flame temperature Increase the calorific value of the fuel ANSWER DOWNLOAD EXAMIANS APP
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