Climate and Weather NDA Questions

NDA Physical Geography

Climate and Weather MCQ Questions


13.
Why does greater movement of air result in greater evaporation?
A.
Movement of air reduces temperature near the surface
B.
Movement of air replaces the saturated layer with an unsaturated layer
C.
Movement of air increases atmospheric pressure
D.
Movement of air cools the surface rapidly
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ANSWER :
B. Movement of air replaces the saturated layer with an unsaturated layer
14.
The transformation of water vapour into liquid water is called:
A.
Condensation
B.
Transpiration
C.
Sublimation
D.
Evaporation
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ANSWER :
A. Condensation
15.
What is the main cause of condensation?
A.
Decrease in pressure only
B.
Gain of heat
C.
Increase in wind speed
D.
Loss of heat
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ANSWER :
D. Loss of heat
16.
In free air, condensation results from cooling around very small particles termed as:
A.
Hygroscopic condensation nuclei
B.
Adiabatic nuclei
C.
Ionic particles
D.
Tropopause particles
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ANSWER :
A. Hygroscopic condensation nuclei
17.
Which of the following is the MOST favourable condition for condensation?
A.
Increase in wind speed only
B.
Decrease in air temperature
C.
Increase in air temperature
D.
Decrease in relative humidity
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ANSWER :
B. Decrease in air temperature
18.
Condensation can take place under all of the following conditions EXCEPT:
A.
When both volume and temperature are reduced
B.
When the temperature of air is reduced to dew point with volume remaining constant
C.
When moisture is added to the air through evaporation
D.
When the temperature of the air increases with volume remaining constant
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ANSWER :
D. When the temperature of the air increases with volume remaining constant