Backflow Prevention Practice Exam

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Study for the Backflow Prevention Exam. Access flashcards and multiple choice questions with hints and explanations. Prepare effectively!

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If the test cock is open during a pressure test, what might be affected?

Relief valve pressure
System integrity
Flow measurement accuracy
Backflow prevention

The correct answer is: Flow measurement accuracy

When the test cock is open during a pressure test, the accuracy of flow measurement can be affected. The test cock is designed to provide access to the system for testing and maintenance, typically allowing water to exit or enter the system. If it is left open during a pressure test, it can create an unintended path for water to flow, which compromises the measurement of pressure and flow rates. This can lead to skewed data, making it difficult to determine the actual performance and condition of the backflow prevention device being tested. Maintaining a closed test cock during such tests is crucial for obtaining reliable measurements that reflect the true operational characteristics of the system. This ensures that assessments of the backflow prevention device's functionality are valid and trustworthy.