BACKFLOW TROUBLESHOOTING EXAM
PREP STUDY GUIDE QUESTIONS ANSWERS
COMPLETE SOLUTION BUNDLE
●● When testing the air inlet and a pressure vacuum breaker, if the high
side believe needle valve must be open more than a quarter turn, to
indicates:
Answer: (C) A leaking number 1 shut off valve.
●● When testing the air inlet and in a pressure vacuum breaker, if the
high side bleed needle valve is open 1/4 turn and gage drops to zero and
the air inlet does not open, the problem is:
Answer: (D) The air inlet is stuck closed
●● When testing the check valve in the pressure vacuum breaker, the
check valve is tested:
Answer: (B) in the direction of flow
●● When testing the check valve in the pressure vacuum breaker, which
hose(s) is /are used.
Answer: (C) The high side hose.
, ●● When testing the check valve in the pressure vacuum breaker, if the
number one shut off valve is leaking and the bleed valve must be used,
to compensate you should:
Answer: (C) Bring the flow of water to a drip at the number 2 test cock.
●● The spill resistant pressure vacuum breaker has:
Answer: (C) 2 shut off valves and one test cock and one vent screw.
●● After testing the pressure vacuum breaker and spill resistant pressure
vacuum breaker air inlets, you must:
Answer: (B) remove the hose and check the air inlet to confirm that it
fully opened.
●● When testing the check valve in the spill resistant pressure vacuum
breaker you attempt to lower the water pressure in the check valve body.
When you attempt to lower the pressure, water continues to flow with no
decrease in pressure. What does this indicate:
Answer: (A) A leaking number 1 shut off valve.
●● When testing the pressure and spill resistant pressure vacuum
breaker, prior to closing the number 1 shut off valves, you must:
Answer: (C) raise the gauge to the appropriate height.
PREP STUDY GUIDE QUESTIONS ANSWERS
COMPLETE SOLUTION BUNDLE
●● When testing the air inlet and a pressure vacuum breaker, if the high
side believe needle valve must be open more than a quarter turn, to
indicates:
Answer: (C) A leaking number 1 shut off valve.
●● When testing the air inlet and in a pressure vacuum breaker, if the
high side bleed needle valve is open 1/4 turn and gage drops to zero and
the air inlet does not open, the problem is:
Answer: (D) The air inlet is stuck closed
●● When testing the check valve in the pressure vacuum breaker, the
check valve is tested:
Answer: (B) in the direction of flow
●● When testing the check valve in the pressure vacuum breaker, which
hose(s) is /are used.
Answer: (C) The high side hose.
, ●● When testing the check valve in the pressure vacuum breaker, if the
number one shut off valve is leaking and the bleed valve must be used,
to compensate you should:
Answer: (C) Bring the flow of water to a drip at the number 2 test cock.
●● The spill resistant pressure vacuum breaker has:
Answer: (C) 2 shut off valves and one test cock and one vent screw.
●● After testing the pressure vacuum breaker and spill resistant pressure
vacuum breaker air inlets, you must:
Answer: (B) remove the hose and check the air inlet to confirm that it
fully opened.
●● When testing the check valve in the spill resistant pressure vacuum
breaker you attempt to lower the water pressure in the check valve body.
When you attempt to lower the pressure, water continues to flow with no
decrease in pressure. What does this indicate:
Answer: (A) A leaking number 1 shut off valve.
●● When testing the pressure and spill resistant pressure vacuum
breaker, prior to closing the number 1 shut off valves, you must:
Answer: (C) raise the gauge to the appropriate height.
