Related Questions

Which one of the following constituents of the atmosphere causes greatest changes in climate and weather?
A Nitrogen
B Oxygen
C Ozone
D Water Vapour
An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature.
A Is always equal to
B Is always greater than
C Is always less than
D May be greater or less than
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
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
When the psychometric ratio is __________ then the adiabatic saturation temperature and wet bulb temperature becomes equal.
A 1
B > 1
C $$\infty $$
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 difference of wet bulb temperature and adiabatic saturation temperature of unsaturated mixture of any system is
A +ve
B -ve
C Zero
D None of these
For the air water system under ambient conditions, the adiabatic saturation temperature and the wet bulb temperature are nearly equal, because
A Water has a high latent heat of evaporation
B Lewis number is close to unity
C They are always equal under all circumstances
D Solubility of the components of air in water is very small
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
The work done in an adiabatic change in a particular gas depends upon changes in the __________ only.
A Temperature
B Specific heat
C Volume
D Pressure

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