BAT Inspection & Quality Control 2

Question 1

When performing a field test on a double check valve assembly (DCVA), what is the minimum acceptable differential pressure reading across check valve #1?

Accepted Answer

2.0 psid

Answer

DCVA check valve #1 must maintain a minimum differential pressure of 2.0 psid to pass a field test.

Question 2

A reduced pressure principle assembly (RPBA) is tested and the relief valve opens during the #1 check valve test. What does this indicate?

Accepted Answer

Check valve #1 has failed and is not holding the required pressure differential

Answer

If the relief valve opens during the #1 check test, check valve #1 is not holding a sufficient differential above the relief valve opening point.

Question 3

Which of the following conditions would cause a tester to FAIL an RPBA during inspection?

Accepted Answer

Relief valve drips intermittently under normal supply pressure

Answer

An RPBA relief valve that drips under normal operating pressure indicates the valve is not seating properly and the assembly should fail.

Question 4

During inspection of a pressure vacuum breaker (PVB), the air inlet valve disc is visually found to be cracked. What is the correct action?

Accepted Answer

Fail the assembly and require repair before returning to service

Answer

A cracked air inlet disc is a mechanical defect that requires the assembly to be failed and repaired before it can be returned to service.

Question 5

A backflow prevention assembly is installed in a pit. What is a critical inspection concern unique to pit installations?

Accepted Answer

The pit must be free of standing water and provide adequate access for testing

Answer

Pit installations must be free of standing water, properly drained, and provide safe access so a tester can safely perform field tests.

(BAT) Backflow Assembly Tester Certification Practice Test

(BAT) Backflow Assembly Tester Certification Practice Test

BAT Inspection & Quality Control 2