Question 495 Deck General

The correct answer is B) 64%. To determine the relative humidity in the cargo hold, we can use the relationship between dry bulb temperature, wet bulb temperature, and relative humidity. By using a psychrometric chart or calculation, we can determine that with a dry bulb temperature of 98°F and a wet bulb temperature of 87°F, the relative humidity is approximately 64%. The other options are incorrect because: A) 84% is too high for the given temperatures. C) 79% is also too high for the given temperatures. D) 87% is the wet bulb temperature, not the relative humidity.