Question 323 Deck General

70% to pass

Using the available references, if the dry bulb temperature is 68°and the wet bulb temperature is 65°, what is the relative humidity in a cargo hold?

A 66%
B 74%
C 85%
D 90%
AI Explanation

The correct answer is C) 85%. To determine the relative humidity given the dry bulb and wet bulb temperatures, we can use a psychrometric chart or table. With a dry bulb temperature of 68°F and a wet bulb temperature of 65°F, the corresponding relative humidity is approximately 85%. The other answer choices are incorrect because: A) 66% is too low for the given temperatures. B) 74% is also too low. D) 90% is slightly higher than the actual relative humidity of 85%.

Ready to test your knowledge?

Take a Deck General Practice Exam

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience with progress tracking.

Get the App