BACK FLOW TEST - -Guaranteed passing score -100 Questions and An...

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BACK FLOW TEST

Actual Qs and Ans - Expert-Verified Explanation -Guaranteed passing score -100 Questions and Answers

-Format: Multiple-choice / Flashcard

Question 1: B. bottom of the device body

Answer:

In accordance with A.S.S.E Standards, if not marked, the critical level of a pressure vacuum breaker

assembly is considered to be the level of the:

• check valve

• bottom of the device body

• discharge piping

• number one test cock

• number two test cock

Question 2: C. backsiphonage backflow

Answer:

The reversal of normal flow in a system caused by a negative pressure (vacuum or partial vacuum) in the supply piping.

• atmostpheric vacuum breaker

• backflow

• backsiphonage backflow

• backpressure backflow

Question 3: C. 1048

Answer:

Double check detector assembly backflow preventer:

A. 1056

B. 1052

C. 1048

D. 1047

Question 4: D. preventing back siphonage backflow

Answer:

The type of protection provided by a barometric loop is:

• an atmospheric break

• preventing loss of prime on a pump

• preventing back pressure backflow

• preventing back siphonage backflow

• preventing service connection contamination

Question 5: D. back pressure and back siphonage- low hazard only

Answer:

In accordance with A.S.S.E. Standards, dual check valve type backflow preventers for carbonated

beverage dispensers are approved for:

• back pressure- high hazard only

• back siphonage only- high and low hazard

• back pressure and back siphonage- high hazard

• back pressure and back siphonage- low hazard only

• back pressure only- high and low hazard

Question 6: True

Answer:

True or False: A backflow preventer with an intermediate atmospheric vent is approved for protection against both back pressure and back siphonage.

Question 7: A. 12 months

Answer:

The State of Ohio Plumbing Code requires that all double check valve backflow assemblies be tested at

the time of installation and at least once every:

• 12 months

• 24 months

• 36 months

• 48 months

• 60 months

Question 8: A. cross connection

Answer:

Any arrangement of pipes, fittings, fixtures, or devices that connects a nonpotable system to a potable water system.

• cross connection

• criss siphonage

• backflow

• degree of hazard

Question 9: False

Answer:

True or False: A pressure vacuum breaker assembly may not be used for high hazard backflow protection.

Question 10: A. health hazard (high)

Answer:

An actual or potential threat of contamination of a physical or toxic nature to the potable water system to such a degree that there would be a danger to health.

• health hazard (high)

• health hazard (low)

• pollution

• contamination

Question 11: C. inlet shut off valve

Answer:

The number one test cock on a pressure vacuum breaker assembly is located between the check valve

and the:

• air inlet valve

• downstream check valve

• inlet shut off valve

• number two test cock

• outlet shut off valve

Question 12: B. twelve inches

Answer:

In accordance with A.S.S.E. standards, the critical level for installation of a pressure vacuum breaker

above the highest point of downstream use is a minimum of:

• six inches

• twelve inches

• eighteen inches

• twenty four inches

• thirty inches