Fuels and Combustion With increase in C/H ratio of a fuel, the dew point of flue gases Remains same Decreases May increase or decrease ; depends on the type of fuel Increases Remains same Decreases May increase or decrease ; depends on the type of fuel Increases ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion For long flame and easy ignition, the coal used should have High volatile matter Low ash High ash High calorific value High volatile matter Low ash High ash High calorific value ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Oxygen percentage (by weight) in atmospheric air is 19 29 21 23 19 29 21 23 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Combustion of pulverised coal as compared to that of lump coal Can be done with less excess air Develops a low temperature flame Develops a non-luminous flame Provides a lower rate of heat release Can be done with less excess air Develops a low temperature flame Develops a non-luminous flame Provides a lower rate of heat release ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Correct viscosity of furnace oil at the burner tip for proper atomisation is about 25 centistokes. To reduce the viscosity of high viscosity furnace oil (250 centistokes) to the correct atomisation viscosity (i.e. 25 cst), it should be preheated to about____°C. 70 85 145 105 70 85 145 105 ANSWER DOWNLOAD EXAMIANS APP
Fuels and Combustion Emission of dense white smoke out of the chimney of a thermal power plant is an indication of the use of Less air for combustion Pulverised coal in boilers Too much air for combustion Correct amount of air for combustion Less air for combustion Pulverised coal in boilers Too much air for combustion Correct amount of air for combustion ANSWER DOWNLOAD EXAMIANS APP
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