Fuels and Combustion Commercial production of petrol from coal (as practised in a factory at Sasol in South Africa) is done by the __________ of coal. None of these Carbonisation Hydrogenation Gasification None of these Carbonisation Hydrogenation Gasification ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Actual flame temperature is always lower than the adiabatic flame temperature, because there is No possibility of obtaining complete combustion at high temperature Always loss of heat from the flame Both A & B Neither A nor B No possibility of obtaining complete combustion at high temperature Always loss of heat from the flame Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the __________ of the mass. Density Electrical resistivity None of these Porosity Density Electrical resistivity None of these Porosity ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Advantages of fluidised bed combustion are Lower furnace operating temperature All of these Reduced NOx formation in flue gas High heat transfer rate Lower furnace operating temperature All of these Reduced NOx formation in flue gas High heat transfer rate ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Soft coke is not A domestic fuel Produced by low temperature carbonisation of coal None of these Used in blast furnaces A domestic fuel Produced by low temperature carbonisation of coal None of these Used in blast furnaces ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal having high volatile matter content will Burn with a small non-smoky flame Have a very high calorific value Give less yield of tar and gas on carbonisation None of these Burn with a small non-smoky flame Have a very high calorific value Give less yield of tar and gas on carbonisation None of these ANSWER DOWNLOAD EXAMIANS APP
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