Related Questions

The maximum adiabatic flame temperature in air is __________ the maximum flame temperature in pure oxygen.
A Lower than
B Higher than
C Same as
D Not related to
The maximum adiabatic flame temperature of fuels in air is __________ the maximum flame temperature in pure oxygen.
A Lower than
B Higher than
C Same as
D Not related to
Actual flame temperature is always lower than the adiabatic flame temperature, because there is
A No possibility of obtaining complete combustion at high temperature
B Always loss of heat from the flame
C Both A & B
D Neither A nor B
Adiabatic flame temperature of a fuel is dependent on the initial temperature of
A Fuel
B Air
C Both A & B
D Neither A nor B
Theoretical flame temperature of a fuel is that temperature which is attained, when the fuel is completely burnt 'using theoretical amount of air in
A Air
B Oxygen
C Either A or B
D Either A or C without gain or loss of heat
The ratio of maximum adiabatic flame temperature in air to that in pure oxygen is always
A 1
B > 1
C Unpredicatable
The maximum adiabatic flame temperature is attained, when the fuel is burnt with
A Theoretically required amount of air
B More than theoretically required amount of air
C Less than theoretically required amount of air
D Theoretically required amount of oxygen
The maximum adiabatic flame temperature in air as compared to that in pure oxygen is
A Much lower
B Much higher
C Same
D Either lower or higher, depends on the type of fuel
If the specific heat of gaseous products of combustion of a fuel is high, the abiabatic flame temperature will be
A Low
B High
C Very high, if the fuel is of low calorific value
D None of these
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

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