BAT Inspection & Quality Control 3

Question 1

An RPBA is tested and check valve #2 shows a differential pressure of 1.0 psid. What is the correct determination?

Accepted Answer

Fail; check valve #2 must hold a minimum of 2.0 psid

Answer

Check valve #2 on an RPBA must hold a minimum differential of 2.0 psid; a reading of 1.0 psid is a failing result.

Question 2

During inspection, a tester finds that the relief valve on an RPBA opens at 1.5 psid differential. The minimum acceptable opening point is:

Accepted Answer

2.0 psid differential below inlet pressure

Answer

The RPBA relief valve must open at no more than 2.0 psid below inlet supply pressure to provide adequate protection.

Question 3

A spill-resistant pressure vacuum breaker (SRPVB) differs from a standard PVB in that it:

Accepted Answer

Contains an internal check valve to prevent spillage during testing and operation

Answer

An SRPVB incorporates an internal check valve designed to prevent water spillage during testing and minor backpressure events.

Question 4

Which of the following installation conditions would automatically disqualify a PVB from use, regardless of test results?

Accepted Answer

Installation where the air inlet is less than 12 inches above the highest downstream outlet

Answer

A PVB must be installed so the air inlet is at least 12 inches above the highest downstream outlet; failure to meet this clearance is a disqualifying condition.

Question 5

A tester discovers rust and corrosion on the external body of a DCVA but test results are within acceptable limits. The proper action is:

Accepted Answer

Note the corrosion on the test report and recommend evaluation by the owner

Answer

External corrosion that does not affect test results should be documented on the test report as an observation and referred to the owner for evaluation.

(BAT) Backflow Assembly Tester Certification Practice Test

(BAT) Backflow Assembly Tester Certification Practice Test

BAT Inspection & Quality Control 3