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. 60-65 3-5 25-30 95-100 60-65 3-5 25-30 95-100 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion A coal with high ash content Has higher calorific value Has low quantity of mineral matter Is harder and stronger Is not subjected to washing Has higher calorific value Has low quantity of mineral matter Is harder and stronger Is not subjected to washing ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Steam is intermittently admitted into the fuel bed during the production of producer gas to Convert CO to CO₂ Minimise the chances of clinker formation Increase the gas production rate Increase the combustion rate Convert CO to CO₂ Minimise the chances of clinker formation Increase the gas production rate Increase the combustion rate ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Incomplete combustion of a fuel is characterised by the high __________ in the flue gas. Temperature Carbon monoxide Oxygen Smoke Temperature Carbon monoxide Oxygen Smoke ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Very __________ coals are completely devoid of cokability i.e, it is non coking. Mature Neither A nor B Young Both A & B Mature Neither A nor B Young Both A & B ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion of pulverised coal compared to the lumpy coal Facilitates combustion with lower excess air All of these Provides better control of furnace temperature Provides higher thermal efficiency & flame temperature Facilitates combustion with lower excess air All of these Provides better control of furnace temperature Provides higher thermal efficiency & flame temperature ANSWER DOWNLOAD EXAMIANS APP
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