Fuels and Combustion Short/intense flame is produced during combustion of gaseous fuel by using Very little excess air High amount/current of combustion air Low amount/current of combustion air Preheated secondary air Very little excess air High amount/current of combustion air Low amount/current of combustion air Preheated secondary air ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Bomb calorimeter is used to determine the (where, GCV - Gross Calorific Value. NCV - Net Calorific Value.) NCV at constant pressure GCV at constant pressure NCV at constant volume GCV at constant volume NCV at constant pressure GCV at constant pressure NCV at constant volume GCV at constant volume ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Soft coke is not Used in blast furnaces 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 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Higher efficiency in the combustion of solid fuel can not be achieved by Adopting efficient-fuel firing technique & equipment Proper fuel preparation Supplying correct quantity of combustion air Keeping the flue gas exhaust temperature very high Adopting efficient-fuel firing technique & equipment Proper fuel preparation Supplying correct quantity of combustion air Keeping the flue gas exhaust temperature very high ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pure carbon is completely burnt in oxygen. The flue gas analysis is 70%CO₂, 20%CO and 10%O₂. The percent excess oxygen used is 12.5 0 20 10 12.5 0 20 10 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good quality coal should have High ash content High sulphur Low fusion point of ash None of these High ash content High sulphur Low fusion point of ash None of these ANSWER DOWNLOAD EXAMIANS APP
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