If the specific heats of a gas and a vapor are 0.2KJ/Kg.°K and 1.5 KJ/Kg.°K respectively, and the humidity is 0.01; the humid heat in KJ/°Kg. is________________?

Related Mcqs:

1. Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of _______________ humidity?

   A. Molal
   B. Relative
   C. Percentage
   D. None of these

2. Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of _______________ humidity?

   A. Molal
   B. Relative
   C. Percentage
   D. None of these

3. At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is ________________ percent.?

   A. 100
   B. 0
   C. 50
   D. Between 0 and 100

4. The percentage humidity is less than the relative humidity only at __________________ percent humidity?

   A. Zero
   B. Hundred
   C. Both zero and hundred
   D. None of these

5. Humid volume, at a given temperature is a/an _______________ function of humidity?

   A. Inverse
   B. Exponential
   C. Linear
   D. Logarithmic

6. Psychrometry deals with the properties of gas-vapor mixture. Humidity can be determined by the measurement of the ________________ of a fibre ?

   A. Electrical resistance
   B. Thermal conductivity
   C. Strength
   D. None of these

7. The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the____________________?

   A. Temperature rises
   B. Pressure rises
   C. Temperature falls
   D. Pressure falls

8. When the ____________________ the relative humidity of air decreases, despite an increase in the absolute humidity?

   A. Temperature rises
   B. Pressure rises
   C. Temperature falls
   D. Pressure falls

9. With increase in absolute humidity, the dew point of an unsaturated mixture of air and water vapor (at constant pressure and temperature) ?

   A. Increases
   B. Remains unchanged
   C. Decreases
   D. Decreases linearly

10. An air-water vapour mixture has a dry bulb temperature of 60°C and a dew point temperature of 40°C. The total pressure is 101.3 kPa and the vapour pressure of water at 40°C and 60°C are 7.30 kPa and 19.91 kPa respectively. The humidity of air sample expressed as kg of water vapour/kg of dry air is__________________?

    A. 0.048
    B. 0.079
    C. 0.122
    D. 0.152