Related Questions

The proper indication of incomplete combustion is
A High CO content in flue gases at exit
B High CO2 content in flue gases at exit
C High temperature of flue gases
D The smoking exhaust from chimney
Incomplete combustion of a fuel is characterised by the high __________ in the flue gas.
A Smoke
B Temperature
C Oxygen
D Carbon monoxide
Incomplete combustion of fuel in the furnace is judged by high __________ of the flue gases.
A CO content
B Dew point
C CO2 content
D O2 content
During combustion of a gaseous fuel, the presence of a non-luminous flame is an indication of the
A Incomplete combustion
B Complete combustion
C High oxygen in flue gas
D None of these
For the case of a fuel gas undergoing combustion with air, if the air/fuel ratio is increased, the adiabatic flame temperature will
A Increase
B Decrease
C Increase or decrease depending on the fuel type
D Not change
When incomplete combustion loss is high, the flue gas analysis shows large amount of
A CO2
B CO
C O2
D C
Deficiency of combustion air during combustion of a gaseous fuel
A Lengthens the flame
B Causes heat loss of fuel by its partial combustion
C Both A & B
D Shortens the flame
The combustion efficiency of a gas turbine using perfect combustion chamber is of the order of
A 75%
B 85%
C 90%
D 99%
In open cycle turbojet engines used in military aircraft, reheating the exhaust gas from the turbine by burning, more fuel is used to increase the
A Thrust and range of aircraft
B Efficiency of the engine
C Both (A) and (B)
D None of these
Incomplete combustion can be best judged by
A Smoky chimney exit
B Excess air in flue gases
C Measuring carbon monoxide in flue gases
D Measuring temperature of flue gases at exit of furnace

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