What is the wet bulb temperature of air if the dry bulb temperature of the air is 90 degrees and the relative humidity is 65%? Illustration GS-RA-22 Illustration GS-RA-22: the U.S. Coast Guard has not released this illustration.
Official USCG Answer & Rule Citation
Correct Answer: Option D — 80 degrees F
Psychrometric chart analysis at 90 degrees Fahrenheit dry bulb and 65 percent relative humidity intersects at a wet bulb temperature of 80 degrees Fahrenheit. Proper reading of psychrometric properties is essential for marine HVAC load calculations.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.