WorksheetsRelative Humidity & DewPoint
Total questions: 10
Worksheet time: 5mins
What is the relative humidity when the dry-bulb temperature is 16°C and the wet-bulb temperature is 14°C?
90%
80%
14%
13%
Which weather variable can be determined by using a psychrometer?
Barometric Pressure
Cloud Cover
Relative Humidity
Wind Speed
Base your answer to the following question on the graph below. The graph shows air temperature and relative humidity at a single location during a 24-hour period.
What was the approximate change in relative humidity from 12 noon to 4 p.m.?
10%
15%
20%
30%
What is the relative humidity when the drybulb temperature is 16°C and the wet-bulb temperature is 10°C?
6%
14%
33%
45%
The data table below shows the dry-bulb and wet-bulb temperatures measured with a psychrometer on four different days at the same location.
According to the data shown in the table, which day had the highest relative humidity?
1
2
3
4
A dry-bulb temperature of 30°C and a wet-bulb temperature of 29°C were recorded at a weather station. What are the relative humidity and the most likely weather conditions?
Relative humidity is 29% with clear skies
Relative humidity is 29% with a good chance of snow.
Relative humidity is 93% with clear skies.
Relative humidity is 93% with a good chance of rain.
The diagram below represents the wet-bulb and dry-bulb temperatures on a sling psychrometer. What was the relative humidity of the air when these temperatures were recorded?
5%
17%
20%
63%
The diagram below shows dry-bulb and wet-bulb temperature readings for a parcel of air. What is the dewpoint of the air?
27°C
10°C
3°C
–5°C
What is the dewpoint when the air temperature is 28°C and the relative humidity is 47%?
8°C
13°C
16°C
19°C
What is the dewpoint if the relative humidity is 100% and the air temperature is 20°C?
0°C
10°C
20°C
100°C
