Fuels and Combustion For maximum discharge through a chimney, its height should be More than 105.7 metres 200 meters Equal to the height of the hot gas column producing draught Infinitely long More than 105.7 metres 200 meters Equal to the height of the hot gas column producing draught Infinitely long ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Flue gas from the heating chamber of byproduct coke ovens is removed by Natural draft Steam ejector Induced draft fan Forced draft fan Natural draft Steam ejector Induced draft fan Forced draft fan ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pulverised coal used in boiler firing need not have Lower ash content Less moisture content High bulk density High fusion point of its ash Lower ash content Less moisture content High bulk density High fusion point of its ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always Unpredicatable > 1 1 Unpredicatable > 1 1 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coking coals are invariably Bituminous coals Lignites Anthracites Semi-anthracites Bituminous coals Lignites Anthracites Semi-anthracites ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Carbon Content by weight in air dried wood may be about __________ percent. 10 25 80 50 10 25 80 50 ANSWER DOWNLOAD EXAMIANS APP