Question 498 Deck General

The correct answer is A) 67%. To determine the relative humidity given the dry bulb and wet bulb temperatures, we can use a psychrometric chart or table. Based on the provided dry bulb temperature of 77°F and wet bulb temperature of 69°F, the relative humidity is approximately 67%. The other options are incorrect because: B) 70% is slightly higher than the actual relative humidity of 67%. C) 77% is too high and would correspond to a lower wet bulb temperature. D) 81% is also too high and does not match the given dry and wet bulb temperatures.