Fuels and Combustion During combustion of gaseous fuels, deficiency of air Does not affect the flame length Tends to shorten the flame Increases the flame temperature Lengthens the flame Does not affect the flame length Tends to shorten the flame Increases the flame temperature Lengthens the flame ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Calorific value of furnace oil is about __________ Kcal/kg. 15000 10000 20000 5000 15000 10000 20000 5000 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Low temperature oxidation of coal during storage does not decrease its Calorific value Oxygen content None of these Caking power Calorific value Oxygen content None of these Caking power ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion The weathering index of a coal Is a measure of its caking tendency Gives an idea of the fusion temperature of ash Is a measure of its size stability, when stored & exposed to weather Is related to its calorific value Is a measure of its caking tendency Gives an idea of the fusion temperature of ash Is a measure of its size stability, when stored & exposed to weather Is related to its calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Furnace oil consumption in a furnace for a given duty employing preheated combination air (at 300° ) may be reduced by about __________ percent as compared to the use of atmospheric combustion air. 35 5 10 20 35 5 10 20 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Hard coke is manufactured from Lignite Semi-anthracite Bituminous coal Anthracite Lignite Semi-anthracite Bituminous coal Anthracite ANSWER DOWNLOAD EXAMIANS APP
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