WQA Certified Service Technician (CST) Training Practice Test

Question: 1 / 400

What is the purpose of using an air gap with a sink or floor drain in plumbing systems?

To increase aesthetic appeal

To prevent back-siphonage

To reduce system pressure

To simplify drainage

Next Question

Report this question

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy