Fuels and Combustion Too much of excess air in combustion results in high All of these Fuel consumption for the same heat load Percentage of oxygen in flue gases Stack gas temperature All of these Fuel consumption for the same heat load Percentage of oxygen in flue gases Stack gas temperature 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 10 20 12.5 0 10 20 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of __________ in a dry gaseous fuel does not contribute to its calorific value. Oxygen Hydrogen Sulphur Carbon Oxygen Hydrogen Sulphur Carbon ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A good coking coal should have high __________ content. Sulphur & phosphorus None of these Moisture Ash Sulphur & phosphorus None of these Moisture Ash ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a product of tar distillation? Phenol & naphthalene Anthracene & creosote Benzol & pitch None of these Phenol & naphthalene Anthracene & creosote Benzol & pitch None of these ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Pitch creosote mixture (PCM) as compared to furnace oil is a better fuel, because its Flue gas has lower dew point thereby facilitating more waste heat recovery Sulphur content is lower All of these Emissivity factor is higher Flue gas has lower dew point thereby facilitating more waste heat recovery Sulphur content is lower All of these Emissivity factor is higher ANSWER DOWNLOAD EXAMIANS APP
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