Dew point temperature always gives an indication of the __________________ of the moist air ?

Related Mcqs:

1. At 100% relative humidity, the dew point temperature of moist air is_________________?

   A. Less than the wet bulb temperature
   B. More than the wet bulb temperature
   C. Equal to the wet bulb temperature
   D. Equal to the ambient temperature

2. When dry bulb temperature & wet bulb temperature of moist air is the same, it means that the _________________?

   A. Partial pressure of water vapour is less than the total pressure
   B. Humidity is < 100% & dew point temperature of air has not reached
   C. Dew point temperature of air has not reached & air is not saturated fully
   D. Air is fully saturated

3. Moist air is cooled along the line of constant ________________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs ?

   A. Enthalpy
   B. Relative humidity
   C. Wet bulb temperature
   D. Dew point temperature

4. __________________ of air does not increase with increase in temperature?

   A. Density
   B. Thermal diffusivity
   C. Viscosity
   D. Thermal conductivity

5. Minimum temperature upto which water can be theoretically cooled down in the cooling tower by evaporative cooling is equal to the ______________ temperature of air?

   A. Wet bulb
   B. Dry bulb
   C. Saturation
   D. Dew point

6. The minimum temperature to which the water can be cooled in a cooling tower is the ______________ temperature of air?

   A. Ambient
   B. Dry bulb
   C. Dew point
   D. Wet bulb

7. Moist climate is the most favourable factor in the site selection far a_________________?

   A. Steel plant
   B. Textile factory
   C. Petroleum refinery
   D. Coke oven battery

8. The boiling & freezing points on a newly defined temperature scale in degree ‘D’ are 400°D & 100°D respectively. The temperature reading corresponding to 60°C on this new temperature scale will be equal to _____________ °D ?

   A. 140
   B. 180
   C. 240
   D. 280

9. Heating the Hypo-eutectoid steels to 30°C above the upper critical temperature line, soaking at that temperature and then cooling slowly to the room temperature to form a pearlite & ferrite structure is called_______________________?

   A. Tempering
   B. Hardening
   C. Annealing
   D. Normalising

10. The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and at around room temperature, this ratio is proportional to(where, T = absolute temperature, °K) ?

    A. T
    B. 1/T
    C. T2
    D. 1/T2