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The prerequisite for enrolling in an ASSE 5130 Repairer course is:

A state master plumber license only

Successful completion of an ASSE 5110 Tester course (or approved equal)

An ASSE 5150 Administrator certification

Two years of cooling tower experience

to track

2026 Statistics

Key Facts: ASSE 5130 Exam

Written Exam Questions

ASSE Series 5000

70%

Written Passing Score

ASSE Series 5000

5+ assemblies

Practical Requirement

ASSE 5130 course outline

20 hrs

Course Length

ASSE-approved schools

5110 Tester

Prerequisite

ASSE 5130 policy

3 years

Recertification

ASSE recertification policy

The ASSE 5130 course is twenty hours of training that ends in a fifty-question written exam requiring seventy percent or higher, plus a hands-on practical in which candidates disassemble and reassemble at least five assemblies while demonstrating safe work procedures. Prerequisite is a current ASSE 5110 Tester certification. Preparation should focus on internal component knowledge, troubleshooting symptoms such as chatter and RP discharge, manufacturer rebuild kits for Watts, Febco, Apollo, Ames, and Zurn Wilkins, and post-repair field testing.

Sample ASSE 5130 Practice Questions

Try these sample questions to test your ASSE 5130 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1The prerequisite for enrolling in an ASSE 5130 Repairer course is:

A.A state master plumber license only

B.Successful completion of an ASSE 5110 Tester course (or approved equal)

C.An ASSE 5150 Administrator certification

D.Two years of cooling tower experience

Explanation: ASSE 5130 requires current ASSE 5110 Tester certification (or approved equal). The repairer must already know assembly operation and field testing before learning to rebuild internals and verify the repair with a post-repair field test.

2An ASSE 5130 course typically culminates in:

A.A 100-question written exam only

B.A 50-question written exam and a hands-on practical exam

C.A practical exam only with no written exam

D.An 8-hour refresher class without testing

Explanation: The 5130 course is 20 hours of training ending in a 50-question written exam (70% passing) and a hands-on practical exam that requires the candidate to disassemble and reassemble at least five assemblies and demonstrate safe work practices.

3An RP (ASSE 1013) assembly consists of which key internal components?

A.One check valve and one relief valve

B.Two independently operating check valves separated by a relief-vented zone

C.Two check valves with a float-activated vacuum breaker

D.One check and one atmospheric vent only

Explanation: An RP has two independently operating, spring-loaded check valves with a relief-vented zone between them. A differential relief valve opens if the first check fouls, discharging water from the zone to atmosphere to prevent backflow.

4A DC (ASSE 1015) assembly protects against:

A.Health hazards under backsiphonage only

B.Non-health hazards under both backpressure and backsiphonage

C.Health hazards under both backpressure and backsiphonage

D.Thermal expansion only

Explanation: A DC is used for non-health hazards and uses two independently acting check valves that seat tightly against both backpressure and backsiphonage. Health hazards require the vented-zone protection of an RP.

5A PVB (ASSE 1020) internal component that is NOT present is:

A.Spring-loaded air inlet

B.Spring-loaded check valve

C.Differential relief valve

D.Test cocks

Explanation: A PVB has a spring-loaded check and a spring-loaded air inlet, plus test cocks. It does not have a differential relief valve — that is the defining feature of an RP.

6Before opening any backflow assembly for repair, the repairer must:

A.Leave the shutoffs open to keep pressure

B.Close both shutoff valves and bleed all pressure through the test cocks

C.Remove the relief valve first while pressurized

D.Energize the booster pump to increase pressure

Explanation: The safe sequence is close upstream shutoff, close downstream shutoff, then bleed the trapped water and pressure through the test cocks before opening the assembly. Releasing water against a pressurized assembly is a significant safety hazard.

7Continuous relief-valve discharge on an RP most often indicates:

A.A fouled first check, damaged relief valve seat, or fluctuating supply pressure

B.Normal operation

C.A closed upstream shutoff

D.A drained system

Explanation: An RP that drips or pours from the relief vent continuously typically has debris on the first check seat, a worn relief seat/disc, a weak or misaligned spring, or a fluctuating supply that repeatedly trips the relief. The repairer diagnoses by differential pressure test across the first check and the relief opening point.

8Chatter on a backflow assembly is:

A.A loud whine from the relief valve

B.Rapid oscillation of a check clapper or the relief valve caused by fluctuating pressure, debris, or weak springs

C.Normal operation during high demand

D.The sound of a fully failed assembly

Explanation: Chatter is rapid oscillation of a check or the relief clapper against its seat, usually caused by fluctuating pressure, a weak or damaged spring, debris, undersized piping, or installation error. It accelerates seat wear and must be corrected.

9The USC 10th Edition minimum passing differential across the first check of an RP is:

A.1.0 psid

B.2.0 psid

C.3.0 psid

D.5.0 psid

Explanation: The USC 10th Edition pass/fail criterion for the first check of an RP is a differential of at least 5.0 psid. After a repair, the repairer must demonstrate at least this value on the post-repair field test.

10The minimum relief valve opening point on an RP per USC 10th Edition is:

A.0.5 psid

B.2.0 psid

C.5.0 psid

D.10.0 psid

Explanation: The USC 10th Edition requires the relief valve to open at a minimum differential of 2.0 psid between the supply pressure and the vented zone. Below this value, the relief may not open when needed.

About the ASSE 5130 Exam

ASSE 5130 is the national certification for Backflow Prevention Assembly Repairers. The credential validates that a technician can disassemble, troubleshoot, rebuild, and return to service ASSE 1013 RP, 1015 DC, 1020 PVB, and 1056 SVB assemblies — including replacing checks, springs, seats/discs, O-rings, relief valves, and test cocks, and performing a post-repair field test to verify correct operation.

Assessment

Written exam plus hands-on practical (disassemble/reassemble 5+ assemblies)

Time Limit

2 hours written plus practical performance

Passing Score

70% written plus pass on practical

Exam Fee

$800-$1,500 course + exam (varies by provider) (ASSE International / IAPMO)

ASSE 5130 Exam Content Outline

25%

Assembly Components and Internals

First check, second check, relief valve, shutoffs, test cocks, air gap on RP, springs, seats and discs, O-rings, diaphragms, and guides on RP, DC, PVB, and SVB assemblies.

20%

Troubleshooting and Failure Diagnosis

Interpreting symptoms such as chatter, continuous RP discharge, failed differential, leaking test cocks, and fouled checks; distinguishing repairable conditions from full replacement.

20%

Disassembly and Rebuild Procedures

Depressurization, safe isolation, correct sequence for removing and replacing internals, torque and reassembly, replacement of springs, seats, discs, and O-rings.

15%

Manufacturer-Specific Knowledge

Watts Series 909/957, Febco 825Y/860, Apollo 4A/40-200, Ames C200/C300, and Zurn Wilkins 375/975 families — rebuild kit part numbers, orientation, and common pitfalls.

10%

Post-Repair Field Testing

Verifying relief valve opening point, first and second check closure, and air inlet operation per USC 10th Edition procedures after reassembly; documenting results.

10%

Safety, Codes, and Standards

ASSE 1013, 1015, 1020, and 1056 standards; confined space, pressure release, PPE, and lockout/tagout relevant to field repair.

How to Pass the ASSE 5130 Exam

What You Need to Know

Passing score: 70% written plus pass on practical
Assessment: Written exam plus hands-on practical (disassemble/reassemble 5+ assemblies)
Time limit: 2 hours written plus practical performance
Exam fee: $800-$1,500 course + exam (varies by provider)

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

ASSE 5130 Study Tips from Top Performers

1Know each internal component of RP, DC, PVB, and SVB assemblies by sight and by function — the practical exam requires identifying and replacing them without prompting.

2Memorize the USC 10th Edition pass/fail criteria so you can confirm the repair worked: RP first check 5.0 psid minimum, DC check 1.0 psid minimum, and relief valve opens at 2.0 psid minimum.

3Study common repair kits and bill of materials for Watts 909/957, Febco 825Y/860, Apollo 4A, Ames C200, and Zurn Wilkins 375/975 — the exam often names manufacturers and part groups.

4Practice the written troubleshooting logic: continuous RP discharge, failed differential, chatter, stuck check, leaking test cock — each has a distinct likely root cause.

5Always depressurize and bleed the assembly before opening it. Several exam questions test safe-work sequencing and lockout/tagout awareness.

6Re-read the USC 10th Edition field test procedures so you can run a post-repair test cleanly; the practical exam expects you to verify your own repair.

7Know the ASSE standard that applies to each assembly family: 1013 (RP), 1015 (DC), 1020 (PVB), 1056 (SVB), plus 1047 (RPDA) and 1048 (DCDA) for fire service.

Frequently Asked Questions

What is the prerequisite for taking the ASSE 5130 Repairer course?

Successful completion of an ASSE 5110 Tester course or an approved equal is required before taking the 5130 Repairer course. This ensures candidates already understand assembly operation and field testing before learning to rebuild internals and verify the repair with a post-repair field test.

How long is the ASSE 5130 course and what does the exam include?

The 5130 course is typically 20 hours of training. Certification requires passing a 50-question written exam with at least 70% correct, and a hands-on practical performance exam. The practical requires disassembly and reassembly of at least five assemblies and a demonstration of safe work procedures.

What causes an RP assembly to discharge continuously after a repair?

Continuous RP discharge after repair usually indicates a fouled or improperly seated first check, reversed spring orientation, a leaking first-check seat/disc, or a relief valve seat/disc problem. The repairer diagnoses by running a post-repair field test and watching the differential across the first check and the relief valve opening point.

What is chatter and what causes it on a backflow assembly?

Chatter is rapid oscillation of a check clapper caused by fluctuating upstream pressure, undersized piping, or air in the line. On an RP, chatter of the relief valve or checks can indicate a weak or damaged spring, debris across the seat, or an undersized installation relative to the flow demand.

Do I need to do a field test after a repair?

Yes. ASSE 5130 requires candidates to perform and document a post-repair field test using USC 10th Edition procedures to verify that the repaired assembly meets minimum pass criteria — typically 5.0 psid across the first check, 1.0 psid across the second check, and a 2.0 psid relief valve opening point for an RP.

Is the ASSE 5130 exam open book?

The written exam is administered per the ASSE-approved training provider's policy; most 5130 written exams are closed book. The practical portion is hands-on, and candidates typically bring their own tools and test kit, with manufacturer literature available as allowed by the proctor.

How often do I need to recertify ASSE 5130?

ASSE Series 5000 certifications must be recertified every three years. 5130 recertification typically includes a recertification class and a combined written and practical exam administered by an ASSE-approved school before the expiration date.