Fuels and Combustion Calorific value of bituminous coal may be around __________ Kcal/kg. 6500 500 1500 20000 6500 500 1500 20000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Ratio of primary air to secondary air increases with increase in the rank of coal, because the Oxygen content progressively decreases High rank coals have higher amount of volatile matter Calorific value of the coal increases Ratio of fixed carbon to volatile matter increases Oxygen content progressively decreases High rank coals have higher amount of volatile matter Calorific value of the coal increases Ratio of fixed carbon to volatile matter increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Presence of nitrogen in combustion air does not reduce the Amount of heat liberated Any of the above Flue gas temperature Flame temperature Amount of heat liberated Any of the above Flue gas temperature Flame temperature ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Caking index of coal blend used for blast furnace coke making is about 8 22 12 36 8 22 12 36 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will Decrease Not change Increase Increase or decrease depending on the fuel type Decrease Not change Increase Increase or decrease depending on the fuel type ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C. 1400-1500 400-500 900-1000 1700-1800 1400-1500 400-500 900-1000 1700-1800 ANSWER DOWNLOAD EXAMIANS APP
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