Fuels and Combustion
Bomb calorimeter is used to determine the (where, GCV - Gross Calorific Value. NCV - Net Calorific Value.)

NCV at constant pressure
NCV at constant volume
GCV at constant pressure
GCV at constant volume

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Fuels and Combustion
Pick out the wrong statement.

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

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