Fuels and Combustion The advantage of firing pulverised coal in the furnace lies in the fact, that it Accelerates the burning rate and economises on fuel combustion Permits the use of low fusion point ash coal Permits the use of high ash content coal All of these Accelerates the burning rate and economises on fuel combustion Permits the use of low fusion point ash coal Permits the use of high ash content coal All of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following gaseous fuels has the lowest calorific value? Gobar gas Refinery gas Converter gas Blast furnace gas Gobar gas Refinery gas Converter gas Blast furnace gas ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The internal energy of the combustion products is __________ compared to that of reactants. Less More or less ; (depends on the state of fuel.) More Equal Less More or less ; (depends on the state of fuel.) More Equal ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Tolerable concentration of toxic carbon monoxide in atmospheric air is about __________ PPm. 5000 1000 10000 50 5000 1000 10000 50 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ignition temperature of a fuel in air is __________ that in pure oxygen. More than Less than Either more or less; depends on the type of fuel Equal to More than Less than Either more or less; depends on the type of fuel Equal to ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pick out the wrong statement. Regulation of furnace temperature and atmosphere (oxidising or reducing) is easily possible with pulverised fuel firing None of these Pulverised fuel can be completely burnt with less percentage of excess air compared to lump coal Low grade coal can be used, but generally high volatile matter coals are more suitable for making pulverised fuel Regulation of furnace temperature and atmosphere (oxidising or reducing) is easily possible with pulverised fuel firing None of these Pulverised fuel can be completely burnt with less percentage of excess air compared to lump coal Low grade coal can be used, but generally high volatile matter coals are more suitable for making pulverised fuel ANSWER DOWNLOAD EXAMIANS APP
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