AWWA PRACTICE TEST STUDY GUIDE
Questions and Answers
1. A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY TEST AND
MAINTE- NANCE REPORT SHALL INCLUDE ALL OF THE FOLLOWING
INFORMATION EX- CEPT THE:
A) ADDRESS OF THE INSTALLATIONB) SERIAL NUMBER OF THE ASSEMBLY
C) TEST RESULTS OF CHECK VALVE NUMBER ONE (1)
D) TEST RESULTS OF CHECK VALVE NUMBER TWO (2)
E)DIFFERENTIAL PRESSURE RELIEF VALVE DISCHARGE READING: E) DIFFERENTIAL
PRESSURE RELIEF VALVE DISCHARGE READING
2. THE BY-PASS LINE OF AN APPROVED BACKFLOW PREVENTION ASSEMBLY
MUST CONTAIN AN APPROVED ASSEMBLY OF EQUAL:
A) CORROSION RESISTANCE
B) FLOW CAPACITY
C) PROTECTION
D) SIZE
E)TEMPERATURE RATING: C) PROTECTION
3. AN ATMOSPHERIC TYPE
VACUUM BREAKER SHALL NOT BE SUBJECTED TO WATER PRESSURE FOR
,PERIODS THAN HOURS.
A) SIX (6)
B) EIGHT (8)
C) TWELVE (12)
D) TWENTY-FOUR (24)
E)NONE OF THE ABOVE: C) TWELVE (12)
4. IT IS POSSIBLE FOR A PERFECT VACUUM AT
SEA LEVEL TO RAISE WATER IN A PIPE APPROXIMATELY FEET.
A) TWENTY-FIVE (25)
B) THIRTY (30)
C) THIRTY-TWO (32)
D) THIRTY-FOUR (34)
E)THIRTY-SIX (36): D) THIRTY-FOUR (34)
5. WHAT IS THE MOST DESIRABLE PLACE TO INSTALL A BACKFLOW
PREVENTION DEVICE AND/OR ASSEMBLY?
A) IN A REINFORCED CONCRETE PIT
B) IN AN ACCESSIBLE LOCATION ABOVE GROUND
C) UNDERGROUND, WITH A MINIMUM OF TWELVE (12) INCHES OF COVER
D) AT OR ABOVE CEILING HEIGHT, TO PROTECT IT FROM VANDALISM
E)BEHIND THE BOILER OR EQUIPMENT SERVED, SO IT CAN BE WORKED
ON WHEN THE EQUIPMENT IS REMOVED: B) IN AN ACCESSIBLE LOCATION ABOVE
,GROUND
6. WHICH OF THE FOLLOWING CONDITIONS COULD RESULT IN WATER
CONTA- MINATION THROUGH A CROSS-CONNECTION?
A)A VACUUM CREATED BY THE IMPROPER USE OF WATER HAMMER ARRESTERS
B) THE USE OF SELF CLOSING LAVATORY FAUCETS
C) TURNING OFF SERVICE TO A MULTI-STORY BUILDING AND ALLOWING
THE WATER SUPPLY TO DRAIN
D)A VACUUM CREATED BY THE USE OF QUICK CLOSING VALVES ON THE LOWER
FLOORS OF A BUILDING EXCEEDING TEN (10) FLOORS IN HEIGHT
E)THE INSTALLATION OF WATER CONSERVING FIXTURES, INTO A BUILDING DE-
SIGNED PRIOR TO THEIR REQUIRED US: C) TURNING OFF SERVICE TO A MULTI-STORY
BUILDING AND ALLOWING THE WATER SUPPLY TO DRAIN
7. WHAT IS ANOTHER TERM THAT DESCRIBES WATER QUALITY AS A
HEALTH HAZARD RESULTING FROM BACKFLOW?
A) ISOLATION
B) CONTAMINATION
C) CROSS-CONNECTION
D) POLLUTION
E)CONTAINED: B) CONTAMINATION
8. THE VENTURI EFFECT STATES THAT WHEN THE WATER VELOCITY WITHIN
THE PIPE INCREASES, THE PRESSURE:\
, A) WILL INCREASE PROPORTIONATELY
B) WILL REMAIN CONSTANT
C) COMPRESSES EXCESS VOLUMES OF WATER
D) DECREASES
E)CREATES BACKPRESSURE: D) DECREASES
9. THE DEGREE OF HAZARD IS:
A) THE ACCEPTABLE TEMPERATURE RANGE OF A NON-POTABLE WATER
SOURCE
B) THE ANGLE OF THE BACKFLOW PREVENTER
C) BASED UPON THE QUALITY OF A NON POTABLE WATER SOURCE
D) DISTANCE BETWEEN THE CROSS-CONNECTION AND THE BACKFLOW PRE-
VENTER
E)THE ENGINEER'S SPECIFIED ELEVATION OF NON-POTABLE PIPING: C)
BASED UPON THE QUALITY OF A NON POTABLE WATER SOURCE
10. BACKFLOW MAY BE DESCRIBED AS EITHER:
A) BACKPRESSURE OR BACKSIPHONAGE
B) CONTAMINATION OR POLLUTION
C) CONTAINMENT AND ISOLATION
D) DIRECT AND/OR INDIRECT
E)HIGH TEMPERATURE OR LOW TEMPERATURE: A) BACKPRESSURE OR
BACKSIPHONAGE
Questions and Answers
1. A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY TEST AND
MAINTE- NANCE REPORT SHALL INCLUDE ALL OF THE FOLLOWING
INFORMATION EX- CEPT THE:
A) ADDRESS OF THE INSTALLATIONB) SERIAL NUMBER OF THE ASSEMBLY
C) TEST RESULTS OF CHECK VALVE NUMBER ONE (1)
D) TEST RESULTS OF CHECK VALVE NUMBER TWO (2)
E)DIFFERENTIAL PRESSURE RELIEF VALVE DISCHARGE READING: E) DIFFERENTIAL
PRESSURE RELIEF VALVE DISCHARGE READING
2. THE BY-PASS LINE OF AN APPROVED BACKFLOW PREVENTION ASSEMBLY
MUST CONTAIN AN APPROVED ASSEMBLY OF EQUAL:
A) CORROSION RESISTANCE
B) FLOW CAPACITY
C) PROTECTION
D) SIZE
E)TEMPERATURE RATING: C) PROTECTION
3. AN ATMOSPHERIC TYPE
VACUUM BREAKER SHALL NOT BE SUBJECTED TO WATER PRESSURE FOR
,PERIODS THAN HOURS.
A) SIX (6)
B) EIGHT (8)
C) TWELVE (12)
D) TWENTY-FOUR (24)
E)NONE OF THE ABOVE: C) TWELVE (12)
4. IT IS POSSIBLE FOR A PERFECT VACUUM AT
SEA LEVEL TO RAISE WATER IN A PIPE APPROXIMATELY FEET.
A) TWENTY-FIVE (25)
B) THIRTY (30)
C) THIRTY-TWO (32)
D) THIRTY-FOUR (34)
E)THIRTY-SIX (36): D) THIRTY-FOUR (34)
5. WHAT IS THE MOST DESIRABLE PLACE TO INSTALL A BACKFLOW
PREVENTION DEVICE AND/OR ASSEMBLY?
A) IN A REINFORCED CONCRETE PIT
B) IN AN ACCESSIBLE LOCATION ABOVE GROUND
C) UNDERGROUND, WITH A MINIMUM OF TWELVE (12) INCHES OF COVER
D) AT OR ABOVE CEILING HEIGHT, TO PROTECT IT FROM VANDALISM
E)BEHIND THE BOILER OR EQUIPMENT SERVED, SO IT CAN BE WORKED
ON WHEN THE EQUIPMENT IS REMOVED: B) IN AN ACCESSIBLE LOCATION ABOVE
,GROUND
6. WHICH OF THE FOLLOWING CONDITIONS COULD RESULT IN WATER
CONTA- MINATION THROUGH A CROSS-CONNECTION?
A)A VACUUM CREATED BY THE IMPROPER USE OF WATER HAMMER ARRESTERS
B) THE USE OF SELF CLOSING LAVATORY FAUCETS
C) TURNING OFF SERVICE TO A MULTI-STORY BUILDING AND ALLOWING
THE WATER SUPPLY TO DRAIN
D)A VACUUM CREATED BY THE USE OF QUICK CLOSING VALVES ON THE LOWER
FLOORS OF A BUILDING EXCEEDING TEN (10) FLOORS IN HEIGHT
E)THE INSTALLATION OF WATER CONSERVING FIXTURES, INTO A BUILDING DE-
SIGNED PRIOR TO THEIR REQUIRED US: C) TURNING OFF SERVICE TO A MULTI-STORY
BUILDING AND ALLOWING THE WATER SUPPLY TO DRAIN
7. WHAT IS ANOTHER TERM THAT DESCRIBES WATER QUALITY AS A
HEALTH HAZARD RESULTING FROM BACKFLOW?
A) ISOLATION
B) CONTAMINATION
C) CROSS-CONNECTION
D) POLLUTION
E)CONTAINED: B) CONTAMINATION
8. THE VENTURI EFFECT STATES THAT WHEN THE WATER VELOCITY WITHIN
THE PIPE INCREASES, THE PRESSURE:\
, A) WILL INCREASE PROPORTIONATELY
B) WILL REMAIN CONSTANT
C) COMPRESSES EXCESS VOLUMES OF WATER
D) DECREASES
E)CREATES BACKPRESSURE: D) DECREASES
9. THE DEGREE OF HAZARD IS:
A) THE ACCEPTABLE TEMPERATURE RANGE OF A NON-POTABLE WATER
SOURCE
B) THE ANGLE OF THE BACKFLOW PREVENTER
C) BASED UPON THE QUALITY OF A NON POTABLE WATER SOURCE
D) DISTANCE BETWEEN THE CROSS-CONNECTION AND THE BACKFLOW PRE-
VENTER
E)THE ENGINEER'S SPECIFIED ELEVATION OF NON-POTABLE PIPING: C)
BASED UPON THE QUALITY OF A NON POTABLE WATER SOURCE
10. BACKFLOW MAY BE DESCRIBED AS EITHER:
A) BACKPRESSURE OR BACKSIPHONAGE
B) CONTAMINATION OR POLLUTION
C) CONTAINMENT AND ISOLATION
D) DIRECT AND/OR INDIRECT
E)HIGH TEMPERATURE OR LOW TEMPERATURE: A) BACKPRESSURE OR
BACKSIPHONAGE
