Fuels and Combustion During coal carbonisation process, the conversion of semi-coke to coke is accompanied by an increase in the __________ of the mass. Electrical resistivity Porosity Density None of these Electrical resistivity Porosity Density None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ignition temperature of a fuel in air is __________ that in pure oxygen. Either more or less; depends on the type of fuel Equal to Less than More than Either more or less; depends on the type of fuel Equal to Less than More than 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. 4 40 96 20 4 40 96 20 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 Wet scrubber Hydrocyclones Bag filter Multicyclones Wet scrubber Hydrocyclones Bag filter ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion During coking of coal, the ash content (percentage) Decreases Remains constant None of these Increases Decreases Remains constant None of these Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fossil fuels mean Solid fuels Premature fuels with low calorific value Those fuels which are found in the crust of earth Liquid fuels Solid fuels Premature fuels with low calorific value Those fuels which are found in the crust of earth Liquid fuels ANSWER DOWNLOAD EXAMIANS APP
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