Water Damage Restoration Technician (WRT) Certification Practice Test

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Enhance your career with the Water Damage Restoration Technician Certification. Test your knowledge with multiple-choice questions that include hints and explanations. Prepare thoroughly for the WRT exam!

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When the air is cooled sufficiently, what does the relative humidity reach?

  1. 50%

  2. 75%

  3. 100%

  4. 150%

The correct answer is: 100%

When air is cooled sufficiently, the relative humidity reaches 100%. This phenomenon occurs because cooler air can hold less moisture than warmer air. When the air temperature drops, its capacity to retain moisture decreases, leading to condensation. At 100% relative humidity, the air is saturated with moisture, meaning it cannot hold any more water vapor, and any additional moisture present will condense into liquid, such as dew or fog. This concept is fundamental in understanding how temperature and humidity interact, especially in the context of water damage restoration, where controlling humidity levels is essential to prevent further damage and mold growth.

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