Fuels and Combustion Supply of excess air for complete combustion of fuel is necessitated to facilitate None of these Attainment of high temperature Its thorough mixing with air Attainment of chemical equilibrium None of these Attainment of high temperature Its thorough mixing with air Attainment of chemical equilibrium ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The weathering index of a coal Is a measure of its caking tendency Is related to its calorific value Is a measure of its size stability, when stored & exposed to weather Gives an idea of the fusion temperature of ash Is a measure of its caking tendency Is related to its calorific value Is a measure of its size stability, when stored & exposed to weather Gives an idea of the fusion temperature of ash 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. 1700-1800 400-500 900-1000 1400-1500 1700-1800 400-500 900-1000 1400-1500 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value as determined by bomb calorimeter is the Lower calorific value at constant pressure Net calorific value at constant volume Higher calorific value at constant volume Gross calorific value at constant pressure Lower calorific value at constant pressure Net calorific value at constant volume Higher calorific value at constant volume Gross calorific value at constant pressure ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Fuel gases containing hydrocarbons (ie.g. coke oven gas) are not preheated before burning, mainly because The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating It reduces its calorific value tremendously It reduces its flame temperature tremendously The hydrocarbons crack thereby choking and fouling the heat transfer surface by carbon soot There are chances of explosion during preheating It reduces its calorific value tremendously It reduces its flame temperature tremendously ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Coalification means the Underground gasification of coal Direct hydrogenation of coal Complete combustion of coal Process of conversion of lignite into anthracite Underground gasification of coal Direct hydrogenation of coal Complete combustion of coal Process of conversion of lignite into anthracite ANSWER DOWNLOAD EXAMIANS APP
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