1. What is Humidity?
(a). Weight of water vapor per unit volume
(b). Ratio of water vapor mass to air mass
(c). Presence of water vapor in air
(d). Weight of air per unit volume
2. What is the concentration range of humidity?
(a). 0 to 10%
(b). 0 to 4%
(c). 5 to 15%
(d). 10 to 20%
3. Which instrument measures humidity?
(a). Thermometer
(b). Barometer
(c). Hygrometer
(d). Anemometer
4. What does dew point indicate?
(a). Maximum humidity
(b). Saturated air
(c). The temperature at which water vapor begins to vaporize
(d). Minimum humidity
5. Which type of humidity remains constant even with expansion or contraction of air?
(a). Absolute humidity
(b). Specific humidity
(c). Relative humidity
(d). Dew point
6. What does specific humidity indicate?
(a). Weight of water vapor per unit volume
(b). Ratio of water vapor mass to air mass
(c). Presence of water vapor in air
(d). The temperature at which water vapor begins to vaporize
7. How is relative humidity expressed?
(a). Degree celsius
(b). TO PERCENTAGE
(c). Pascal
(d). Inch mercury
8. How does temperature affect humidification capacity?
(a). Moisture capacity increases
(b). Moisture capacity is reduced
(c). No effect on moisture capacity
(d). Stabilizes humidity capacity
9. Where is relative humidity generally high?
(a). Over continents
(b). Near the equator
(c). In high latitudes
(d). Over the oceans
10. What affects the distribution of regional relative humidity?
(a). Motion of the moon
(b). Speed of sun
(c). Rotation of earth
(d). Presence of clouds
11. When is the average relative humidity high in high latitudes?
(a). Heat
(b). Winter
(c). Spring
(d). Winter season
12. What are the phases of water mentioned in the article?
(a). Solid, liquid and gas
(b). Snow, rain and fog
(c). Dew, frost and mist
(d). Vapor, mist and smoke
13. What drives the process of evaporation?
(a). Pressure
(b). Heat
(c). Air
(d). Cold temperature
14. What is the primary factor affecting the rate of evaporation?
(a). Air pressure
(b). Temperature
(c). Damp
(d). Wind speed
15. What is the main condition for condensation to occur?
(a). High wind speed
(b). Presence of nucleus
(c). Low humidity
(d). High temperature
16. When does dew form?
(a). Hot nights
(b). Clear skies and high humidity
(c). Cold surfaces and low humidity
(d). Cloudy day
17. What is the main factor in frost formation?
(a). Low humidity
(b). High temperature
(c). Clear sky
(d). High humidity and low temperature
18. How is fog formed?
(a). By condensation of water vapor
(b). By rain from clouds
(c). By evaporation of water bodies
(d). Due to dew accumulation
19. What is the specialty of mist compared to fog?
(a). Excess moisture content
(b). Low moisture content
(c). Long Term
(d). Formation on hot nights
20. What is fog?
(a). Low humidity conditions
(b). Low visibility fog
(c). Fog and smoke combination air pollution
(d). High humidity conditions
21. Which instrument measures humidity?
(a). Anemometer
(b). Barometer
(c). Thermometer
(d). Hygrometer
22. How is specific humidity related to air pressure?
(a). Directly proportional
(b). Inversely proportional
(c). No relation
(d). Steady
23. Where is relative humidity highest?
(a). Over continents
(b). Near the equator
(c). In high latitudes
(d). Over the oceans
24. What does dew point indicate?
(a). Maximum humidity
(b). Saturated air
(c). The temperature at which water vapor begins to vaporize
(d). Minimum humidity
25. What is the primary driver of evaporation?
(a). Wind speed
(b). Temperature
(c). Damp
(d). Pressure