Backflow Prevention Assembly Tester Training
Backflow Prevention Assembly Tester Training
Exam Questions and Answers 2025
What is the difference between CV 1 and CV 2 on a double CV assembly -Correct
Answers ✔-The two CV operate the same
In a perfect vacuum, water can be drawn up a column__________feet. -Correct
Answers ✔-33.9
Which of the following is considered to be a chemical contaminant? -Correct
Answers ✔-Arsenic
Which of the following is considered to be a biological health hazard? -Correct
Answers ✔-Giardia
What type of assembly has two internally spring- loaded CV, two shut- off valves,
and four test cocks? -Correct Answers ✔-Double Check
Which of the following is the most suitable protection when directly connecting
potable water supply lines to sewerage systems or to radioactive sources? -Correct
Answers ✔-Air Gap
A Bypass of a Backflow prevention assembly may be permitted only if the
assembly in the bypass: -Correct Answers ✔-Is the same type
What Federal Law made water purveyors responsible for water quality all the way
to the customers tap? -Correct Answers ✔-Safe Drinking Water Act Amendment
of 1986
If a column of water is exerting a pressure of 50 psi, how high must the water be
inside the column? -Correct Answers ✔-115.5ft
As the velocity of water increases, pressure: -Correct Answers ✔-Decreases
Atmospheric pressure at sea level is _____psi -Correct Answers ✔-14.7
Backflow Prevention Assembly Tester Training
, Backflow Prevention Assembly Tester Training
A water supply other than the purveyors approved supply that is available to a
premise is called: -Correct Answers ✔-Auxiliary Water Supply
When testing a DCDA the mainline and bypass assemblies should be a tested
minimum of ________ months. -Correct Answers ✔-12
How can backsiphonage action be broken -Correct Answers ✔-Air Gap
What single difficult to regulate item is more commonly associated with cross
connections, specifically through backsiphonage? -Correct Answers ✔-Garden
Hose
Which device must have proper drainage provided for all enclosures? -Correct
Answers ✔-Reduced pressure Backflow preventer
The appropriate height for an Air Gap is : -Correct Answers ✔-2x pipe size
Diameter above flood rim of the receiving vessel, minimum of 1"
While testing CV 1 on a dc, water recedes from the sight tube attached to TC3. The
gauge should be moved to the centerline of the assembly and the static pressure
drop across CV 1 should be recorded. What other information should be recorded?
-Correct Answers ✔-CV2 is leaking and shutoff valve 2 is leaking
At what point is the relief valve in a RP required to open? -Correct Answers ✔-
2.0psid
What is the minimum spring tension recommended on CV1 in a RPZ? -Correct
Answers ✔-3 psi greater than the tension recommended on CV1 in a RPZ
Which device protects against back pressure and backsiphonage? -Correct Answers
✔-Reduced pressure Backflow preventer
While testing the air inlet valve on a spill proof vacuum breaker, the high side
bleed needle valve may need to be opened more than 1/4 turn in order to allow the
air inlet to open? What is the likely cause? -Correct Answers ✔-Leaking shutoff
valve #1
Backflow Prevention Assembly Tester Training
Backflow Prevention Assembly Tester Training
Exam Questions and Answers 2025
What is the difference between CV 1 and CV 2 on a double CV assembly -Correct
Answers ✔-The two CV operate the same
In a perfect vacuum, water can be drawn up a column__________feet. -Correct
Answers ✔-33.9
Which of the following is considered to be a chemical contaminant? -Correct
Answers ✔-Arsenic
Which of the following is considered to be a biological health hazard? -Correct
Answers ✔-Giardia
What type of assembly has two internally spring- loaded CV, two shut- off valves,
and four test cocks? -Correct Answers ✔-Double Check
Which of the following is the most suitable protection when directly connecting
potable water supply lines to sewerage systems or to radioactive sources? -Correct
Answers ✔-Air Gap
A Bypass of a Backflow prevention assembly may be permitted only if the
assembly in the bypass: -Correct Answers ✔-Is the same type
What Federal Law made water purveyors responsible for water quality all the way
to the customers tap? -Correct Answers ✔-Safe Drinking Water Act Amendment
of 1986
If a column of water is exerting a pressure of 50 psi, how high must the water be
inside the column? -Correct Answers ✔-115.5ft
As the velocity of water increases, pressure: -Correct Answers ✔-Decreases
Atmospheric pressure at sea level is _____psi -Correct Answers ✔-14.7
Backflow Prevention Assembly Tester Training
, Backflow Prevention Assembly Tester Training
A water supply other than the purveyors approved supply that is available to a
premise is called: -Correct Answers ✔-Auxiliary Water Supply
When testing a DCDA the mainline and bypass assemblies should be a tested
minimum of ________ months. -Correct Answers ✔-12
How can backsiphonage action be broken -Correct Answers ✔-Air Gap
What single difficult to regulate item is more commonly associated with cross
connections, specifically through backsiphonage? -Correct Answers ✔-Garden
Hose
Which device must have proper drainage provided for all enclosures? -Correct
Answers ✔-Reduced pressure Backflow preventer
The appropriate height for an Air Gap is : -Correct Answers ✔-2x pipe size
Diameter above flood rim of the receiving vessel, minimum of 1"
While testing CV 1 on a dc, water recedes from the sight tube attached to TC3. The
gauge should be moved to the centerline of the assembly and the static pressure
drop across CV 1 should be recorded. What other information should be recorded?
-Correct Answers ✔-CV2 is leaking and shutoff valve 2 is leaking
At what point is the relief valve in a RP required to open? -Correct Answers ✔-
2.0psid
What is the minimum spring tension recommended on CV1 in a RPZ? -Correct
Answers ✔-3 psi greater than the tension recommended on CV1 in a RPZ
Which device protects against back pressure and backsiphonage? -Correct Answers
✔-Reduced pressure Backflow preventer
While testing the air inlet valve on a spill proof vacuum breaker, the high side
bleed needle valve may need to be opened more than 1/4 turn in order to allow the
air inlet to open? What is the likely cause? -Correct Answers ✔-Leaking shutoff
valve #1
Backflow Prevention Assembly Tester Training
