Cross Connection Practice Exam

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Study for the Cross Connection Exam. Prepare with interactive quizzes and multiple-choice questions, each complete with hints and detailed explanations. Get ready to excel in your certification!

Practice this question and more.

When flushing the test cocks of a Reduced Pressure Principle Backflow Assembly, what must be done with the number two test cock?

It must be opened last
It must be closed before flushing
It must be left open
It should not be flushed

The correct answer is: It must be opened last

Opening the number two test cock last during the flushing process of a Reduced Pressure Principle Backflow Assembly is important for maintaining system integrity and accuracy. This procedure ensures that any potential contaminants are cleared out before this last point of potential backflow into the water supply. The sequence of flushing the test cocks matters; opening the second test cock last allows for the proper removal of debris and ensures that the pressure differential created by the assembly remains intact. By following this sequence, you also help to prevent any fluctuations in pressure that could compromise the system's effectiveness. This practice is key in ensuring that the assembly operates correctly and protects the drinking water supply from contamination. In this context, opening the other test cocks first aids in establishing a thorough and effective flushing process, and the importance of keeping the assembly and its components functioning correctly cannot be overstated, particularly in systems designed to prevent backflow.