Question

A student uses a sling psychrometer to measure relative humidity. The dry bulb thermometer reads 59°F, and the wet bulb reads 41°F. The relative humidity is %.

Hint: Convert the temperatures to Celsius, and then use the chart to determine the relative humidity. Use this formula to convert the temperatures:
(°F–32)× 5/9=°C.

A. 53%

B. 37%

C. 25%

D. 69%

Answer 1

To calculate relative humidity using a sling psychrometer, convert the temperatures to Celsius. Use a chart or table to determine the relative humidity percentage for the converted temperatures. Option A - 53% is the closest to the actual relative humidity in this case.

Step-by-step explanation:

To calculate the relative humidity using the sling psychrometer, we need to convert the temperatures to Celsius first. Using the given formula, we can convert 59°F to Celsius: (59°F - 32) × 5/9 = 15°C. Similarly, we can convert 41°F to Celsius: (41°F - 32) × 5/9 = 5°C.

Next, we can use a chart or table that relates temperature and relative humidity to determine the percentage. Based on the given options, we can see that option A - 53% is the closest to the actual relative humidity for the given temperatures of 15°C (dry bulb) and 5°C (wet bulb).