Quiznetik
Engineering Thermodynamics | Set 6
1. The degree of saturation is the ratio of
A. (saturated specific humidity / actual specific humidity)^2
B. 1/(saturated specific humidity * actual specific humidity)
C. saturated specific humidity / actual specific humidity
D. actual specific humidity / saturated specific humidity
Correct : D. actual specific humidity / saturated specific humidity
2. At any dbt, the the difference of wbt reading below below dbt, is the amount of water vapour held in mixture.
A. smaller, smaller
B. greater, greater
C. greater, smaller
D. smaller, greater
Correct : C. greater, smaller
3. When unsaturated air flows over a sheet of water in an insulated chamber
A. specific humidity of air decreases
B. the water evaporates
C. both air and water are cooled during evaporation
D. all of the mentioned
Correct : A. specific humidity of air decreases