HVAC Excellence Commercial Air Conditioning ESCO Certification Practice Exam

Question: 1 / 400

How does humidity affect thermal comfort?

It has no impact on comfort levels

Lower humidity can make it feel cooler than it is

Higher humidity can make it feel warmer than it actually is

Both B and C are correct

Humidity plays a crucial role in determining thermal comfort, impacting how we perceive temperature in our environment. Higher humidity levels reduce the body's ability to cool itself through evaporation of sweat. This results in an increased sensation of heat, making individuals feel warmer than the actual air temperature. Conversely, lower humidity allows sweat to evaporate more effectively, which can create a cooling effect, leading to the perception that the environment is cooler than it truly is.

Therefore, both the effects noted in the options are valid: lower humidity can enhance the cooling sensation, while higher humidity can contribute to a warmer feeling. Thus, selecting the option that acknowledges both of these conditions accurately reflects how humidity interacts with thermal comfort.

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