Red Seal Plumbing Practice Exam

An air conditioner that discharges 0.05 L/s of condensate into a floor drain, would equate to how many fixture units?

1. 1

2. 2

3. 3

4. 4

The correct answer is: 2

When an air conditioner discharges condensate, it is considered a waste discharge that goes into a floor drain. In plumbing, the term "fixture units" is used to measure the drainage capacity of different types of waste flows. One fixture unit indicates the drainage capacity of one cubic foot of water per minute. Since the air conditioner is discharging 0.05 liters per second, it will take 1.3 cubic feet per minute. When converted to fixture units, this would equate to 2 fixture units. So, the correct answer is B. Option A would only be correct if the air conditioner were discharging 0.03 L/s, while options C and D would only be correct if the air conditioner were discharging 0.1 L/s. Therefore, they are incorrect answers.