Question 1

Which organization publishes the standard field test procedures for backflow prevention devices (ASSE 5013)?

Accepted Answer

ASSE 5013 is the field test standard published by the American Society of Sanitary Engineering. This standard establishes uniform test procedures that certified testers must follow to verify backflow device functionality.

Question 2

How frequently must backflow prevention devices be tested according to most state regulations?

Accepted Answer

Most jurisdictions require annual testing of backflow prevention assemblies to ensure continued protection. Test frequency may be more frequent in high-hazard applications or based on local authority requirements.

Question 3

Who is legally permitted to perform and certify backflow prevention device tests?

Accepted Answer

Only testers certified by an approved certifying organization are permitted to perform and certify backflow device tests. Certification ensures testers understand proper procedures and can generate legally valid test reports.

Question 4

Which of the following MUST be included on an official backflow prevention device test report?

Accepted Answer

Test reports must include specific technical information: assembly type, make, model, size, serial number, location, test date, all pressure readings, pass/fail results, tester name and certification number, and any repair actions taken.

Question 5

Where must the backflow prevention device test report be filed after testing is completed?

Accepted Answer

Test reports must be filed with the water purveyor (public or private entity supplying water) or AHJ (typically the local water utility or health department). This maintains records of compliance with backflow prevention requirements.

Question 6

What action must be taken when a backflow prevention device fails its annual test?

Accepted Answer

A failed device must be repaired and retested to verify compliance before returning to service. The tester must notify the water purveyor of any failed tests, and the device cannot legally remain in service.

Question 7

Which ASSE standard specifies the requirements for Reduced Pressure Principle (RPZ) assemblies?

Accepted Answer

ASSE 1013 is the product standard for RPZ assemblies used in high-hazard (health hazard) applications. ASSE 1015 covers double check valves, ASSE 1020 covers PVBs, and ASSE 5013 covers field test procedures.

Question 8

What is required for a backflow prevention device to be considered 'approved' by regulatory authorities?

Accepted Answer

Only devices that have been tested and listed by ASSE, the USC Foundation, or other state-approved certifying organizations are approved. This ensures the device meets rigorous performance standards.

Question 9

Where must a Pressure Vacuum Breaker (PVB) be installed according to installation requirements?

Accepted Answer

PVBs must be installed above the highest downstream outlet to function properly. If installed below, backpressure could prevent the air inlet valve from opening, eliminating backflow protection.

Question 10

A PVB device should NOT be used in which situation?

Accepted Answer

PVBs cannot be used where continuous backpressure exists because the air inlet would remain closed, disabling the backflow protection. RPZ assemblies must be used in high-pressure backflow scenarios.

Question 11

What is the minimum size requirement for an air gap in a backflow prevention system?

Accepted Answer

Air gaps must be at least 1 inch minimum or 2 times the diameter of the supply outlet, whichever is greater. This physical separation prevents backflow by making it impossible for contaminated water to reach the supply.

Question 12

According to regulations, backflow prevention devices must be installed in which locations?

Accepted Answer

Assemblies must be installed in accessible locations to allow for periodic testing, maintenance, and inspection. This accessibility requirement ensures devices can be properly serviced throughout their lifecycle.

Question 13

A Double Check (DC) valve is appropriate for protecting against which type of hazard?

Accepted Answer

DC valves are approved for low-hazard (non-health hazard) applications. For high-hazard situations involving potential health hazards, an RPZ or air gap is required instead.

Question 14

An RPZ or air gap is required for which category of cross-connection?

Accepted Answer

RPZ assemblies or air gaps are mandatory for high-hazard (health hazard) cross-connections such as medical waste, sewage, or chemical connections. These provide the highest level of protection.

Question 15

If state regulations require backflow prevention but do not specify annual testing, what do most water purveyors require?

Accepted Answer

Even when state law is silent, most water purveyors require annual testing as the industry standard and best practice. This ensures ongoing protection against cross-contamination.

Question 16

Who is responsible for maintaining records of backflow prevention device testing?

Accepted Answer

Both the water purveyor and property owner should maintain test records to demonstrate compliance history. These records are essential for regulatory audits and establishing maintenance patterns.

Question 17

What certifying organization established the USC standard for backflow prevention?

Accepted Answer

The USC Foundation (University of Southern California) developed widely-used backflow prevention standards and operates a major certification program. USC standards are recognized and approved in many states.

Question 18

For new commercial construction, when must a backflow prevention device be installed?

Accepted Answer

Backflow prevention devices must be installed before new systems are put into service to prevent contamination from day one. Waiting until issues arise violates building codes and water regulations.

Question 19

An existing low-hazard assembly is being used in a newly identified high-hazard application. What is required?

Accepted Answer

When a hazard level increases from low to high (health hazard), the assembly must be upgraded to provide the required level of protection. A DC valve is insufficient for high-hazard scenarios.

Question 20

Which action is a certified backflow tester NOT permitted to perform?

Accepted Answer

Testers cannot adjust or modify device components to artificially achieve passing results. This would compromise the integrity of the test. Devices that fail must be reported and repaired by qualified technicians.

Question 21

What is the primary responsibility of the Authority Having Jurisdiction (AHJ) regarding backflow prevention?

Accepted Answer

The AHJ (typically local water utility or health department) enforces backflow prevention regulations, verifies compliance through test reports, and takes action against non-compliant properties.

Question 22

Which type of property typically requires backflow prevention?

Accepted Answer

Industrial, commercial, multi-family (apartments), and high-hazard residential properties require backflow prevention. Single-family homes generally need protection only if they have specific cross-connections.

Question 23

According to ASSE standards, what is the acceptable range for Check #1 pressure reading on an RPZ during testing?

Accepted Answer

Check #1 must hold at least 0.5 PSI above Check #2, but should typically read 1 to 2 PSI above in normal operation. Readings outside the acceptable range indicate potential check valve issues.

Question 24

What document is used to verify that a tester is certified to perform backflow device testing?

Accepted Answer

A current certification card from an approved certifying organization (ASSE, USC, or state-recognized program) is required evidence that a tester is qualified. The card must be presented to the water purveyor with test reports.

Question 25

A water purveyor discovers that a property owner has bypassed an installed backflow prevention device. What is the likely regulatory consequence?

Accepted Answer

Bypassing or disabling a required backflow prevention device is a serious code violation. Water purveyors have authority to discontinue service, impose fines, and require immediate compliance.

Question 26

Which of the following accurately describes the relationship between ASSE and state backflow requirements?

Accepted Answer

States commonly adopt ASSE standards as the baseline for backflow prevention but often establish additional or stricter requirements. ASSE standards represent minimums, not maximums.

Question 27

What is the proper response when a tester discovers an unapproved backflow prevention device already installed on a property?

Accepted Answer

Unapproved devices do not meet regulatory standards and cannot be certified. The tester must report the finding to the AHJ, and the property must upgrade to an ASSE, USC, or state-listed device.

Question 28

How long should test reports typically be retained by the property owner for regulatory compliance?

Accepted Answer

Most jurisdictions require retaining test reports for 3-5 years or indefinitely. This documentation demonstrates ongoing compliance history and is essential for regulatory audits.

Question 29

When a certified tester fails a backflow prevention device, the tester's primary responsibility is to:

Accepted Answer

The tester must notify the water purveyor or AHJ in writing of any failed device. This triggers regulatory action requiring the property owner to repair and retest the device.

Question 30

Which standard applies specifically to Double Check Valve (DC) assembly requirements?

Accepted Answer

ASSE 1015 is the product standard for Double Check Valve assemblies used in low-hazard applications. This standard establishes the design, performance, and testing requirements for DC devices.

Regulations & Codes Practice Questions

Download VoltExam — $17.99 Lifetime

More Backflow Prevention Certification Exam Topics