RD - Commission on Dietetic Registration (CDR) Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Study for the RD - Commission on Dietetic Registration (CDR) Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What is defined as a physical link between safe water and potentially contaminated water sources?

Air gap
Backflow
Vacuum breaker
Cross-connection

The correct answer is: Cross-connection

A cross-connection is defined as a physical link between safe water sources and potentially contaminated water sources. This term is important in the context of plumbing and water systems, as it represents a point where the two water supplies can interact, leading to the possible backflow of contaminated water into the potable supply. Cross-connections can occur in various systems, such as irrigation systems, industrial sites, or even residential plumbing where improper installations or modifications have taken place. Understanding cross-connections is crucial for maintaining public health standards, as they can create significant risks for water contamination if not properly managed or eliminated. Public health regulations often require protections against cross-connections to ensure the safety of drinking water.