Fuels and Combustion Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm. 25-30 95-100 60-65 3-5 25-30 95-100 60-65 3-5 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Incomplete combustion of a fuel is characterised by the high __________ in the flue gas. Carbon monoxide Smoke Temperature Oxygen Carbon monoxide Smoke Temperature Oxygen ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Preheating of __________ the flame temperature. The gaseous fuel before combustion decreases Either the fuel or the air or both, increases Combustion air decreases Either the fuel or the air does not affect The gaseous fuel before combustion decreases Either the fuel or the air or both, increases Combustion air decreases Either the fuel or the air does not affect ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a by-product recovered in a high temperature coal carbonisation plant? Ethylene Benzol Napthalene Pitch-cresosote mixture (PCM) Ethylene Benzol Napthalene Pitch-cresosote mixture (PCM) ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion of pulverised coal compared to the lumpy coal Provides better control of furnace temperature All of these Facilitates combustion with lower excess air Provides higher thermal efficiency & flame temperature Provides better control of furnace temperature All of these Facilitates combustion with lower excess air Provides higher thermal efficiency & flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Which of the following is not a product of tar distillation? Anthracene & creosote None of these Benzol & pitch Phenol & naphthalene Anthracene & creosote None of these Benzol & pitch Phenol & naphthalene ANSWER DOWNLOAD EXAMIANS APP
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