Backflow Prevention Assembly Tester (BPAT) | Questions &
Answers & Rationale | 2025/2026 | Latest Update | Instant
Download !!
1. What is the primary purpose of a backflow prevention assembly?
A. Increase water pressure
B. Improve water taste
C. Prevent contamination of potable water supply (correct answer)
D. Lower chlorine residual
Rationale: BPAs prevent contaminants from entering the potable system due to backpressure or
backsiphonage.
2. Backflow caused by a pump creating higher pressure than supply is called:
A. Backsiphonage
B. Cross-connection
C. Backpressure (correct answer)
D. Static pressure
Rationale: Backpressure occurs when downstream pressure exceeds supply pressure.
3. The required test frequency for backflow assemblies in Texas is:
A. Every 6 months
B. Annually (correct answer)
C. Every 2 years
D. When customer requests
Rationale: TCEQ mandates annual testing for all testable assemblies.
,4. Which assembly is used for high-hazard applications only?
A. PVC swing check
B. Double check valve (DCVA)
C. Reduced pressure principle (RP assembly) (correct answer)
D. Pressure vacuum breaker
Rationale: RP assemblies are required for health hazards per plumbing codes.
5. A Pressure Vacuum Breaker protects against:
A. Backpressure
B. Backsiphonage only (correct answer)
C. Both backpressure & backsiphonage
D. High backpressure
Rationale: PVBs cannot protect against backpressure, only backsiphonage.
6. The minimum inlet pressure required to perform a backflow test is:
A. 1 psi
B. 2 psi (correct answer)
C. 10 psi
D. No minimum required
Rationale: Testing accuracy requires minimum 2 psi supply.
7. What is the purpose of the relief valve in an RP assembly?
A. Increase water velocity
B. Discharge when differential pressure drops too low (correct answer)
C. Allow bypass flow
D. Equalize pressure between checks
, Rationale: The relief valve protects against backflow when #1 check drops below 2.0 psi differential.
8. A DCVA must maintain a minimum differential pressure across each check of:
A. 0.5 psi
B. 1.0 psi
C. 1.0 psi for #1 & #2 checks (correct answer)
D. 2.0 psi
Rationale: DCVA minimum passing value is 1.0 psi on each check.
9. The relief valve of an RP assembly must open at:
A. 1.0 psi
B. 2.0 psi differential (correct answer)
C. 3.0 psi
D. 4.0 psi
Rationale: Minimum allowable RV opening point is 2.0 psi.
10. What is the correct test sequence for a DCVA?
A. Check #2 → Check #1
B. Relief valve → Check #1 → Check #2
C. Check #1 → Check #2 (correct answer)
D. Relief valve only
Rationale: Standard testing follows #1 check then #2 check.
11. A reading of 0.5 psi on check #1 during a DCVA test means:
A. Pass
B. Valve is oversized
Answers & Rationale | 2025/2026 | Latest Update | Instant
Download !!
1. What is the primary purpose of a backflow prevention assembly?
A. Increase water pressure
B. Improve water taste
C. Prevent contamination of potable water supply (correct answer)
D. Lower chlorine residual
Rationale: BPAs prevent contaminants from entering the potable system due to backpressure or
backsiphonage.
2. Backflow caused by a pump creating higher pressure than supply is called:
A. Backsiphonage
B. Cross-connection
C. Backpressure (correct answer)
D. Static pressure
Rationale: Backpressure occurs when downstream pressure exceeds supply pressure.
3. The required test frequency for backflow assemblies in Texas is:
A. Every 6 months
B. Annually (correct answer)
C. Every 2 years
D. When customer requests
Rationale: TCEQ mandates annual testing for all testable assemblies.
,4. Which assembly is used for high-hazard applications only?
A. PVC swing check
B. Double check valve (DCVA)
C. Reduced pressure principle (RP assembly) (correct answer)
D. Pressure vacuum breaker
Rationale: RP assemblies are required for health hazards per plumbing codes.
5. A Pressure Vacuum Breaker protects against:
A. Backpressure
B. Backsiphonage only (correct answer)
C. Both backpressure & backsiphonage
D. High backpressure
Rationale: PVBs cannot protect against backpressure, only backsiphonage.
6. The minimum inlet pressure required to perform a backflow test is:
A. 1 psi
B. 2 psi (correct answer)
C. 10 psi
D. No minimum required
Rationale: Testing accuracy requires minimum 2 psi supply.
7. What is the purpose of the relief valve in an RP assembly?
A. Increase water velocity
B. Discharge when differential pressure drops too low (correct answer)
C. Allow bypass flow
D. Equalize pressure between checks
, Rationale: The relief valve protects against backflow when #1 check drops below 2.0 psi differential.
8. A DCVA must maintain a minimum differential pressure across each check of:
A. 0.5 psi
B. 1.0 psi
C. 1.0 psi for #1 & #2 checks (correct answer)
D. 2.0 psi
Rationale: DCVA minimum passing value is 1.0 psi on each check.
9. The relief valve of an RP assembly must open at:
A. 1.0 psi
B. 2.0 psi differential (correct answer)
C. 3.0 psi
D. 4.0 psi
Rationale: Minimum allowable RV opening point is 2.0 psi.
10. What is the correct test sequence for a DCVA?
A. Check #2 → Check #1
B. Relief valve → Check #1 → Check #2
C. Check #1 → Check #2 (correct answer)
D. Relief valve only
Rationale: Standard testing follows #1 check then #2 check.
11. A reading of 0.5 psi on check #1 during a DCVA test means:
A. Pass
B. Valve is oversized
