Backflow Prevention Practice Exam

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Gauges used for field tests of backflow preventers must have the calibration checked ____?

After every 50 tests
If dropped
If used in temperature extremes
Annually

The correct answer is: Annually

The calibration of gauges used for field tests of backflow preventers must be checked annually to ensure their accuracy and reliability. Regular calibration is essential because any inaccuracies in the gauge can lead to improper assessment of the backflow preventer's performance, which could ultimately compromise the safety and quality of the water supply. By adhering to an annual calibration schedule, professionals maintain the integrity of the testing process and ensure compliance with industry standards. This practice minimizes the risk of undetected backflow incidents and helps in preserving public health. While it might be important to check calibration after specific events such as dropping the gauge or using it in extreme temperatures, these situations are not the primary factors that dictate the overall need for regular calibration. Regular annual checks, regardless of such conditions, serve as a best practice for reliable testing standards in backflow prevention.