Backflow Qiz 3

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Backflow Quizzes & Trivia

This quiz is to test your knowledge on backflow


Questions and Answers
  • 1. 
    WHERE IS THE #2 TEST COCK OF A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY LOCATED? 
    • A. 

      UPSTREAM OF SHUT-OFF VALVE #1

    • B. 

      UPSTREAM OF CHECK VALVE #1

    • C. 

      DOWNSTREAM OF SHUT-OFF VALVE #2

    • D. 

      DOWNSTREAM OF THE #2 CHECK VALVE

    • E. 

      BETWEEN #1 AND #2 CHECK VALVE

  • 2. 
    WATER CONTINUOUSLY LEAKING FROM TEST COCK #2 DURING A TEST PROCEDURE OF A PRESSURE VACUUM BREAKER ASSEMBLY IS  PROBABLY CAUSED BY A LEAKING: 
    • A. 

      AIR INLET VALVE

    • B. 

      TEST COCK #1

    • C. 

      INLET SHUT-OFF VALVE #1

    • D. 

      OUTLET SHUT-OFF VALVE #2

  • 3. 
    WHICH ARE 2 TYPES OF CROSS CONNECTIONS?
    • A. 

      POLLUTANT A CONTAMINANT

    • B. 

      BACKSIPHONAGE & BACKPRESSURE

    • C. 

      LOW & HIGH

    • D. 

      TOXIC &NON-TOXIC

    • E. 

      DIRECT & INDIRECT

  • 4. 
    • A. 

      THE AIR INLET VALVE

    • B. 

      THE BOTTOM OF THE INLET PIPING

    • C. 

      SHUT-OFF VALVE #2

    • D. 

      THE BOTTOM OF THE VALVE BODY

    • E. 

      THE BOTTOM OF THE DISCHARGE PIPING

  • 5. 
    WHERE WILL AN ATMOSPHERIC VACUUM BREAKER USUALLY BE INSTALLED? 
    • A. 

      IN A BOILER SYSTEM MAKE-UP LINE

    • B. 

      IN THE SERVICE CONNECTION TO A RESIDENCE

    • C. 

      IN THE SERVICE CONNECTION TO A CAR WASH

    • D. 

      IN A FIRE SPRINKLER SYSTEM

    • E. 

      IN NONE OF THE ABOVE

  • 6. 
    • A. 

      2"

    • B. 

      4"

    • C. 

      6"

    • D. 

      8"

    • E. 

      12"

  • 7. 
    WHAT IS THE SUGGESTED MINIMUM VERTICAL DISTANCE BETWEEN THE RELIEF VALVE DISCHARGE PORT OF A REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER ASSEMBLY AND THE FLOOR PLANE? 
    • A. 

      6"

    • B. 

      12"

    • C. 

      18"

    • D. 

      24"

    • E. 

      30"

  • 8. 
    WHICH OF THE FOLLOWING IS NOT A TYPICAL TEST COCK ADAPTER FITTING SIZE? 
    • A. 

      1/8” x 1/4”

    • B. 

      ¼” x ¼”

    • C. 

      3/8" x ¼”

    • D. 

      ½” x ¼”

    • E. 

      3/4 X ¼”

  • 9. 
    WHEN PERFORMING A FIELD TEST OF A REDUCED PRESSURE PRINCIPLE BACKFLOW ASSEMBLY, THE #2 TEST COCK SHOULD BE: 
    • A. 

      FLUSHED 1ST

    • B. 

      NOT FLUSHED AT ALL

    • C. 

      FLUSHED WITH CAUTION TO PREVENT A PREMATURE RELIEF VALVE DISCHARGE

    • D. 

      PLUGGED

    • E. 

      FLUSHED LAST

  • 10. 
    THE RELIEF VALVE ON A REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER REMAINS CLOSED DURING NORMAL OPERATION DUE TO: 
    • A. 

      SUPPLY SIDE PRESSURE

    • B. 

      THE RELIEF VALVE SPRING

    • C. 

      ZONE PRESSURE

    • D. 

      ALL OF THE ABOVE

  • 11. 
    "CONTAINMENT" PROTECTION": 
    • A. 

      PROTECTS ALL CONSUMERS ON A PUBLIC WATER SYSTEM

    • B. 

      OFFERS NO PROTECTION TO INDIVIDUALS WITHIN A FACILITY

    • C. 

      PREVENTS BACKSIPHONAGE ONLY

    • D. 

      ALL OF THE ABOVE

  • 12. 
    WHERE IS THE BEST LOCATION FOR THE INSTALLATION OF A BACKFLOW PREVENTION ASSEMBLY? 
    • A. 

      IN A PIT — PROVIDED IT HAS A COVER

    • B. 

      UNDERGROUND

    • C. 

      IN AN EASILY ACCESSIBLE LOCATION IN A HEATED BUILDING

    • D. 

      AT OR NEAR THE CEILING IN THE BASEMENT

  • 13. 
    A CERTIFIED TESTER MUST DESCRIBE THE PROPER APPLICATION OF A BACKFLOW PREVENTCN ASSEMBLY AND THEIR LIMITATIONS WITH RESPECT TO:   
    • A. 

      MINIMUM & MAXIMUM ASSEMBLY WORKING PRESSURE

    • B. 

      MINIMUM & MAXIMUM ASSEMBLY WORKING TEMPERATURE

    • C. 

      BACKFLOW & DEGREE OF HAZARD

    • D. 

      ALL OF THE ABOVE

    • E. 

      NONE OF THE ABOVE

  • 14. 
    A CERTIFIED TESTER MUST RECORD ALL THE FOLLOWING PHYSICAL IDENTIFICATION OF A BACKFLOW PREVENTION ASSEMBLY EXCEPT: 
    • A. 

      MANUFACTURER

    • B. 

      DEGREE OF HAZARD

    • C. 

      MODEL #

    • D. 

      SERIAL #

    • E. 

      LOCATION OF ASSEMBLY

  • 15. 
    • A. 

      INCLUDES AN UPSTREAM SHUT-OFF VALVE

    • B. 

      INCLUDES A SPRING LOADED CHECK VALVE

    • C. 

      IS USED FOR LOW HAZARD PROTECTION ONLY

    • D. 

      INCLUDES A SPRING LOADED AIR INLET VALVE

    • E. 

      MUST BE USED FOR BACKSIPHONAGE PROTECTION ONLY

  • 16. 
    WHY MUST ADEQUATE CLEARANCE BE PROVIDED ABOVE A BACKFLOW PREVENTION  ASSEMBLY? 
    • A. 

      FOR THE OPERATION OF THE SHUT-OFF VALVES

    • B. 

      FOR MAINTENANCE & REPAIR

    • C. 

      FOR TESTING PURPOSES

    • D. 

      FOR VISUAL INSPECTION OF THE ASSEMBLY

    • E. 

      ALL OF THE ABOVE

  • 17. 
    TO CONVERT "FEET OF HEAD" TO PSI, YOU MUST. 
    • A. 

      MULTIPLY BY 1.5

    • B. 

      MULTIPLY BY 3.339

    • C. 

      MULTIPLY BY.433

    • D. 

      MULTIPLY BY 14.7

    • E. 

      MULTIPLY BY 144.

  • 18. 
    • A. 

      THE #2 CHECK VALVE SHOULD BE RETESTED

    • B. 

      THE ENTIRE ASSEMBLY SHOULD BE RETESTED

    • C. 

      THE RELIEF VALVE SHOULD BE RETESTED

    • D. 

      THE #1 CHECK VALVE SHOULD BE RETESTED

    • E. 

      THE ASSEMBLY IS APPROVED WITH NO RETESTING

  • 19. 
    • A. 

      A LEAKING #1 SHUT-OFF VALVE

    • B. 

      LOW WATER SUPPLY PRESSURE

    • C. 

      AIR TRAPPED INSIDE THE RELIEF VALVE

    • D. 

      EXCESSIVE BACKPRESSURE

    • E. 

      A MALFUNCTION OF THE RELIEF VALVE MECHANISM

  • 20. 
    • A. 

      THE AIR INLET VALVE SHOULD BE WIRED CLOSED

    • B. 

      REMOVE THE CHECK VALVE

    • C. 

      REPLACE THE CANOPY COVER

    • D. 

      INCREASE THE SUPPLY PRESSURE

    • E. 

      REMOVE THE AIR INLET VALVE

  • 21. 
    BACKSIPHONAGE CAN BE CAUSED BY AN UNDERSIZED WATER PIPE CARRYING WATER AT A HIGH VELOCITY DUE TO: 
    • A. 

      A VACUUM EFFECT

    • B. 

      A PIVOT EFFECT

    • C. 

      A VENTURI EFFECT

    • D. 

      A MARGINAL EFFECT

    • E. 

      A GRAVITY EFFECT

  • 22. 
    WHAT IS THE PRIMARY CAUSE OF THE REVERSAL OF FLOW OF WATER IN A PIPING SYSTEM? 
    • A. 

      THE LENGTH OF THE PIPING SYSTEM

    • B. 

      LOW FLOW CONDITIONS

    • C. 

      THE SIZE OF THE PIPE

    • D. 

      THE REVERSAL OF A PUMP

    • E. 

      THE LOSS OF PRESSURE IN THE SYSTEM

  • 23. 
    WHAT TYPE OF PROTECTION IS PROVIDED BY A BAROMETRIC LOOP? 
    • A. 

      BACKPRESSURE BACKFLOW

    • B. 

      AN ATMOSPHERIC BREAK

    • C. 

      BACKSIPHONAGE BACKFLOW

    • D. 

      BACKPRESSURE & BACKSIPHONAGE BACKFLOW

  • 24. 
    A REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER IS NOT REQUIRED AT THE SERVICE CONNECTION OF THIS FACILITY... 
    • A. 

      A CAR WASH

    • B. 

      A SEWAGE TREATMENT PLANT

    • C. 

      A PLATING PLANT

    • D. 

      IN A SINGLE FAMILY DWELLING

    • E. 

      A HOSPITAL

  • 25. 
    THE PROPER INSTALLATION OF A PIPE APPLIED ATMOSPHERIC VACUUM BREAKER ON AN IRRIGATION SYSTEM PERMITS THE DOWNSTREAM PIPING TO BE ELEVATED ABOVE THE ATMOSPHERIC VACUUM BREAKER PROVIDED... 
    • A. 

      THERE ARE NO CONTROL VALVES DOWNSTREAM

    • B. 

      THE SPRINKLER HEADS ARE AT LEAST 6" BELOW THE AVB

    • C. 

      A HOSE BIBB IS INSTALLED DOWNSTREAM

    • D. 

      A SHUT-OFF VALVE IS INSTALLED DOWNSTREAM

    • E. 

      NEVER

  • 26. 
    WHICH OF THE FOLLOWING IS AN ACCEPTABLE BACKFLOW PREVENTION DEVICE? 
    • A. 

      A SWIVEL CONNECTION

    • B. 

      A SPOOL PIECE

    • C. 

      A 4-WAY CONTROL VALVE

    • D. 

      2 SWING CHECK VALVES IN TANDEM

    • E. 

      NONE OF THE ABOVE

  • 27. 
    • A. 

      TO DETERMINE FLOW THROUGH THE DEVICE

    • B. 

      TO EQUALIZE PRESSURE ON BOTH SIDES OF THE CHECK VALVE

    • C. 

      TO PROTECT THE TEST GAUGES FROM DAMAGES

    • D. 

      TO REMOVE LODGED FOREIGN MATERIAL

    • E. 

      DETERMINE THAT THE TEST COCKS ARE NOT PLUGGED

  • 28. 
    • A. 

      BY INSTALLING A PRESSURE REGULATING VALVE ON THE SUPPLY PIPE

    • B. 

      BY INSTALLING A SOFT SEAT CHECK VALVE UPSTREAM OF THE ASSEMBLY

    • C. 

      BY INSTALLING A GLOBE VALVE ON THE DOWNSTREAM PIPING

    • D. 

      BY INSTALLING A SOFT SEAT CHECK VALVE DOWNSTREAM OF THE ASSEMBLY

    • E. 

      BY INSTALLING A STRAINER UPSTREAM OF THE ASSEMBLY

  • 29. 
    ON WHICH OF THE FOLLOWING IS IT NECESSARY TO RECORD THE PRESSURE DIFFERENTIAL AT WHICH THE RELIEF VALVE OPENS DURING A FIELD TEST? 
    • A. 

      REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER

    • B. 

      DOUBLE CHECK DETECTOR ASSEMBLY BACKFLOW PREVENTER

    • C. 

      DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY

    • D. 

      REDUCED PRESSURE DETECTOR BACKFLOW PREVENTER

    • E. 

      BOTH A & D

  • 30. 
    • A. 

      IINSTALL A DEVICE WITH A BYPASS ARRANGEMENT TO PROVIDE UNDERGROUND SERVICE

    • B. 

      INSTALL 2 SIMILAR DEVICES IN PARALLEL

    • C. 

      MAINTAIN A SPARE PARTS KIT IN CASE OF DEVICE FAILURE

    • D. 

      USE A BYPASS HOSE TO TEST THE DEVICE

  • 31. 
    HOW OFTEN SHOULD ALL TESTING EQUIPMENT BE RECALIBRATED,  ACCORDING TO THE ANSI / ASSE SERIES 5000? 
    • A. 

      WHENEVER THE TESTER THINKS SO

    • B. 

      EVERY 5 YEARS

    • C. 

      ACCORDING TO THE TESTING EQUIPMENT MANUFACTURERS INSTALLATION INSTRUCTIONS

    • D. 

      ALL OF THE ABOVE

    • E. 

      NONE OF THE ABOVE

  • 32. 
    A CROSS CONNECTION CONTROL SURVEYS CHECKLIST EXCLUDES THE FOLLOWING—PER THE ANSI / ASSE SERIES 5000. 
    • A. 

      ASSEMBLY IDENTIFICATION

    • B. 

      ASSEMBLY & DEVICE LOCATIONS

    • C. 

      POTENTIAL CROSS CONNECTIONS

    • D. 

      LOCAL CODES

    • E. 

      NONE OF THE ABOVE

  • 33. 
    THE UNINTENTIONAL REVERSAL OF FLOW IN A POTABLE WATER SYSTEM WHICH MAY RESULT IN CONTAMINATION OR POLLUTION OF THE SYSTEM, 
    • A. 

      TOXIC

    • B. 

      BACKFLOW PREVENTER

    • C. 

      NON-POTABLE WATER

    • D. 

      BACKSIPHONAGE

    • E. 

      BACKFLOW

  • 34. 
    WHAT IS THE RECOMMENDED MINIMUM SIDE CLEARANCE FROM A WALL FOR A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY? 
    • A. 

      6"

    • B. 

      12"

    • C. 

      18"

    • D. 

      24"

    • E. 

      36"

  • 35. 
    WHAT MUST BE INCLUDED WITH AN APPROVED BACKFLOW PREVENTION ASSEMBLY? 
    • A. 

      BALL VALVES FOR SHUT-OFF VALVES

    • B. 

      UPSTREAM STRAINER

    • C. 

      RESILIENT SEATED SHUT-OFF VALVES

    • D. 

      STAINLESS STEEL CHECK VALVES

    • E. 

      SINGLE HANDLE TEST COCKS

  • 36. 
    • A. 

      A DUAL CHECK VALVE BACKFLOW PREVENTER

    • B. 

      A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY

    • C. 

      A REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER

    • D. 

      AN AIR GAP SEPARATION

    • E. 

      A PRESSURE VACUUM BREAKER ASSEMBLY

  • 37. 
    • A. 

      Q=A/V

    • B. 

      Q=V-A

    • C. 

      Q=V/A

    • D. 

      Q =AxV

  • 38. 
    HOW OFTEN SHOULD TEST EQUIPMENT BE CHECKED FOR CALIBRATION? (RECOMMENDED) 
    • A. 

      MONTHLY

    • B. 

      QUARTERLY

    • C. 

      SEMI - ANNUALLY

    • D. 

      ANNUALLY

    • E. 

      AT THE TIME OF PURCHASE ONLY

  • 39. 
    • A. 

      ABNORMAL OPERATING PRESSURE

    • B. 

      THE SHUT-OFF VALVE IS NOT FULLY OPEN AND AIR IS TRAPPED IN THE DEVICE

    • C. 

      EXCESSIVE BACKPRESSURE

    • D. 

      CHECK DISC COMPRESSION

  • 40. 
    • A. 

      AT THE HIGH PRESSURE HOSE GAUGE CONNECTION

    • B. 

      AT THE BYPASS HOSE GAUGE CONNECTION

    • C. 

      AT THE LOW PRESSURE HOSE GAUGE CONNECTION

    • D. 

      AT TEST COCK #1

    • E. 

      AT TEST COCK #2

  • 41. 
    THE MAXIMUM DISTANCE THAT AN ABSOLUTE VACUUM AT SEA LEVEL CAN LIFT A COLUMN OF WATER IS 
    • A. 

      2.3'

    • B. 

      4.6'

    • C. 

      11.5'

    • D. 

      14.7'

    • E. 

      33.9'

  • 42. 
    WHAT IS THE REASON FOR THE METER ON A DOUBLE CHECK DETECTOR ASSEMBLY BACKFLOW PREVENTER? 
    • A. 

      TO DETECT ANY BACKFLOW

    • B. 

      TO BYPASS THE WATER METER

    • C. 

      TO TEST THE ALARM SYSTEM

    • D. 

      TO DETERMINE THE DIRECTION OF FLOW

    • E. 

      TO DETECT UNAUTHORIZED WATER USAGE

  • 43. 
    AN UNPROTECTED BYPASS AROUND A BACKFLOW PREVENTION ASSEMBLY OR DEVICE. 
    • A. 

      IS CONSIDERED TO BE A CROSS CONNECTION AND NEVER PERMITTED

    • B. 

      MUST BE WITHIN 3' OF THE DEVICE

    • C. 

      MUST HAVE A CHECK VALVE

    • D. 

      MUST BE THE SAME SIZE

  • 44. 
    WHAT NORMALLY PROTECTS THE POTABLE WATER SUPPLY TO A URINAL EQUIPPED WITH A FLUSHOMETER VALVE? 
    • A. 

      REDUCED PRESSURE PRINCIPLE BACKFLOW ASSEMBLY

    • B. 

      DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY

    • C. 

      PIPE APPLIED ATMOSPHERIC VACUUM BREAKER

    • D. 

      DUAL CHECK TYPE BACKFLOW PREVENTER

    • E. 

      PRESSURE VACUUM BREAKER ASSEMBLY

  • 45. 
    • A. 

      5 PSIG

    • B. 

      10 PSIG

    • C. 

      15 PSIG

    • D. 

      20 PSIG

    • E. 

      25 PSIG

  • 46. 
    • A. 

      SERIAL # OF THE ASSEMBLY

    • B. 

      TEST RESULTS OF CHECK VALVE #1

    • C. 

      TEST RESULTS OF CHECK VALVE #2

    • D. 

      ADDRESS OF THE INSTALLATION

    • E. 

      DIFFERENTIAL PRESSURE RELIEF VALVE DISCHARGE

  • 47. 
    The physical operation of a HOSE CONNECTION VACUUM BREAKER is classified as a type of.. 
    • A. 

      Dual check valve type backflow preventer

    • B. 

      Atmospheric vacuum breaker

    • C. 

      Backflow preventer with intermediate atmospheric vent

    • D. 

      Pressure vacuum breaker assembly

  • 48. 
    The degreeof hazard is 
    • A. 

      Temperature of a non-potable water source

    • B. 

      The angle of the backflow assembly

    • C. 

      Based upon the quality of a non-potable water system

    • D. 

      Distance between the cross connection and the back low assembly

  • 49. 
    The LABORATORY FAUCET BACKFLOW PREVENTER is NOT intended to be 
    • A. 

      Hydraulically shocked

    • B. 

      Installed in areas without toxic fumes

    • C. 

      Operated with continuous pressure

    • D. 

      Washed with de-ionized water

  • 50. 
    If, during a field test of a REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER, the tester finds a leaking #2 check valve, the repairs should be made and the 
    • A. 

      #2 check valve retested

    • B. 

      Entire assembly is retested

    • C. 

      #1 check valve retested

    • D. 

      Assembly should be approved without retesting

  • 51. 
    A term that describes the quality of water that is impaired in respect to taste, odor, or utility,but does not constitute a health hazard is…… 
    • A. 

      Toxic

    • B. 

      Pollutant

    • C. 

      Back-siphonage

    • D. 

      Containment

  • 52. 
    Atmospheric pressure is…… 
    • A. 

      The pressure exerted by the height of a water column

    • B. 

      The pressure exerted by the weight of the atmosphere (14.7 psi at sea level)

    • C. 

      Increased as the elevation above sea level increases

    • D. 

      Decreased as the elevation above sea level decreases

  • 53. 
    The following absolute pressure could cause backsiphonage to occur in a hydraulic system (distribution system) at sea level, 
    • A. 

      10.5 psia

    • B. 

      15.0 psia

    • C. 

      33.9 psia

    • D. 

      100 psia

  • 54. 
    An ATMOSPHERIC TYPE VACUUM BREAKER'S critical component subject to failure is the:  
    • A. 

      Upstream shutoff valve

    • B. 

      Loaded check valve

    • C. 

      Canopy

    • D. 

      Air inlet valve

  • 55. 
    An air gap separation is measured from the outlet to the….. 
    • A. 

      Fixture drain plug

    • B. 

      Level of the liquid

    • C. 

      Flood level rim of the receptacle

    • D. 

      None listed

  • 56. 
    • A. 

      14.4 Ibs.

    • B. 

      23.5 Ibs.

    • C. 

      37.5 Ibs

    • D. 

      62.4 Ibs.

  • 57. 
    Which of the following is NOT a cause of backpressure? 
    • A. 

      Elevated plumbing

    • B. 

      Thermal expansion

    • C. 

      Pumps

    • D. 

      Aspiration

  • 58. 
    According to the ASSE Series 5000, a certified tester must record all the following      physical identification of a BACKFLOW PREVENTION ASSEMBLY except: 
    • A. 

      Degree of hazard

    • B. 

      Model #

    • C. 

      Serial #

    • D. 

      Location of assembly

  • 59. 
    What type of backflow occurs with an indirect cross connection? 
    • A. 

      Backpressure

    • B. 

      Indirect

    • C. 

      Backsiphonage & backpressure

    • D. 

      Backsiphonage

  • 60. 
    The primary concern of the water purveyor where an auxiliary water system is Maintained and utilized by a customer, is to assure that…… 
    • A. 

      The auxiliary system pressure is less than the public water system pressure

    • B. 

      An approved backflow prevention assembly is installed on the service connection

    • C. 

      The auxiliary system is chlorinated

    • D. 

      The auxiliary water system is metered

  • 61. 
    ATMOSPHERIC TYPE VACUUM BREAKERS shall not be subjected to continuous water pressure for periods...   
    • A. 

      Longer than 6 hours

    • B. 

      Longer than 12 hours

    • C. 

      Longer than 18 hours

    • D. 

      Longer than 24 hours

  • 62. 
    What causes the relief valve to close on a REDUCED PRESSURE PRINCIPLE ASSEMBLY? 
    • A. 

      Relief valve spring pressure

    • B. 

      Supply side water pressure

    • C. 

      Pressure differential between check valve #1 & check valve #2

    • D. 

      All listed

  • 63. 
    This may cause a check valve to leak……. 
    • A. 

      A dirty or damaged check disc

    • B. 

      A damaged check seat

    • C. 

      A broken or damaged spring

    • D. 

      All listed

  • 64. 
    Why is the relief valve of a REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER spring loaded?   
    • A. 

      To reduce the incoming pressure

    • B. 

      To force the relief valve open

    • C. 

      To force the 1st check valve to open

    • D. 

      To force the relief valve closed

  • 65. 
    Which of the following is included in a HIGH HAZARD classification? 
    • A. 

      Radioactive waste

    • B. 

      Raw sewage

    • C. 

      Caustic soda

    • D. 

      All listed

  • 66. 
    The purpose for testing the differential pressure on a backflow assembly is to....
    • A. 

      Check spring tension

    • B. 

      Make sure check is seated

    • C. 

      Record for test report

    • D. 

      All listed

  • 67. 
    What may cause BACKSIPHONASE BACKFLOW in a water distribution system? 
    • A. 

      A loss of pressure caused by a ruptured pipe

    • B. 

      High demand

    • C. 

      A change in direction of flow

    • D. 

      All listed

  • 68. 
    A ¼” diameter potable water supply shall have at least a/an________air gap separation between the supply pipe and the flood level rim. 
    • A. 

      1/2"

    • B. 

      1"

    • C. 

      2"

    • D. 

      4"

  • 69. 
    Which of the following does NOT determine the type of test procedure to be used when testing backflow assemblies?   
    • A. 

      The size of the assembly

    • B. 

      Type of assembly

    • C. 

      Manufacturer

    • D. 

      Both a & c

  • 70. 
    The Performance Requirements for BACKFLOW PREVENTION ASSEMBLY TEST KITS recommends the test equipment be checked for calibration at least 
    • A. 

      Monthly

    • B. 

      Quarterly

    • C. 

      Semi-annually

    • D. 

      Annually

  • 71. 
    • A. 

      A PRESSURE VACUUM BREAKER ASSEMBLY should not be installed where it

    • B. 

      A REDUCED PRESSURE PRINCIPLE ASSEMBLY should be installed in place

    • C. 

      A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY should be installed

    • D. 

      Both a & b

  • 72. 
    Which of the following devices may be used to control thermal expansion problems?  
    • A. 

      Soft seating check valves

    • B. 

      Pressure relief valves

    • C. 

      Thermal expansion tanks

    • D. 

      Both b & c

  • 73. 
    A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY may NOT be used to protect against……..   
    • A. 

      Contaminants

    • B. 

      Pollutants

    • C. 

      Backpressure

    • D. 

      Backsiphonage

  • 74. 
    Which of the following is NOT a required part of an ATMOSPHERIC TYPE VACUUM BREAKER? 
    • A. 

      Air inlet float valve

    • B. 

      The body

    • C. 

      Air canopy

    • D. 

      Shutoff valve

  • 75. 
    THERMAL EXPANSION.... 
    • A. 

      Is the pressure increase which occurs in a piping system every time a water heater comes on to recover the temperature lost through the usage of hot water

    • B. 

      Occurs in any hot water system when water is heated or recovered during periods of non-use

    • C. 

      Can cause a dangerous increase in pressure

    • D. 

      All of the above

  • 76. 
    While testing a REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER, a fluctuation in the pressure differential during a static condition is caused by………   
    • A. 

      Rapidly changing supply pressure

    • B. 

      Backpressure backflow

    • C. 

      Leaking #1 check valve

    • D. 

      Leaking #2 check valve

  • 77. 
    Which shutoff valve would have to be closed before a REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER ASSEMBLY can be completely tested?   
    • A. 

      #1 only

    • B. 

      #2 only

    • C. 

      None

    • D. 

      #1 & #2

  • 78. 
    If the air inlet valve of a PRESSURE VACUUM BREAKER ASSEMBLY will not seat……. 
    • A. 

      It should be wired closed

    • B. 

      The check valve should be removed

    • C. 

      The canopy cover should be replaced

    • D. 

      The supply pressure is too low

  • 79. 
    Static pressure is……… 
    • A. 

      Produced by fluid in motion

    • B. 

      The force exerted by a fluid at rest

    • C. 

      The force exerted by a change in atmospheric pressure

    • D. 

      None listed

  • 80. 
    When field testing a backflow prevention device in a confined space, which of the following guidelines should be followed? 
    • A. 

      Review a procedure to follow in case of emergency

    • B. 

      Perform work as a team

    • C. 

      Test atmosphere before entering

    • D. 

      All listed

  • 81. 
    A REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTOR's relief valve operates from the inlet water pressure and the water pressure at 
    • A. 

      The #2 shutoff valve

    • B. 

      The atmospheric vent

    • C. 

      #4 test cock

    • D. 

      Intermediate zone pressure

  • 82. 
    When testing a relief valve on a REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER ASSEMBLY, which test cocks should be open? 
    • A. 

      1 & 3

    • B. 

      1 & 4

    • C. 

      2 & 3

    • D. 

      3 & 4

  • 83. 
    Which of the following is NOT a cause of backpressure? 
    • A. 

      Elevated plumbing

    • B. 

      Thermal expansion

    • C. 

      Pumps

    • D. 

      Aspiration

  • 84. 
    To exert a pressure of 1 psi at the base of a column of water, the column would have to be_____________in height. 
    • A. 

      4.34"

    • B. 

      12"

    • C. 

      14.7"

    • D. 

      27.75"

  • 85. 
    To obtain an optional line-pressure reading while testing a DOUBLE CHECK VALVE BACKFLOW PREVENTION ASSEMBLY, a suitable pressure gauge is attached to test cock 
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

    • E. 

      All Listed

  • 86. 
    A PRESSURE VACUUM BREAKER ASSEMBLY'S shutoff valves 
    • A. 

      Are installed at the inlet of the assembly only

    • B. 

      Are not used during a field test procedure

    • C. 

      Contain an inlet test cock on all assemblies

    • D. 

      Are located at the inlet and outlet of all assemblies

  • 87. 
    What information is NOT required on the BACKFLOW ASSEMBLY FIELD TEST REPORT? 
    • A. 

      Type of assembly

    • B. 

      Serial # of assembly

    • C. 

      Water temperature of assembly

    • D. 

      Test results

  • 88. 
    • A. 

      The DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY should be replaced with an air gap

    • B. 

      The DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY should be replaced with a dual check

    • C. 

      The DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY is the correct application, no changes needed

    • D. 

      None listed

  • 89. 
    The purpose of the ASSE Professional Qualification Standard Series 5000 is to 
    • A. 

      Establish minimum performance criteria for backflow assembly testers

    • B. 

      Establish minimum performance criteria for backflow assembly repairers

    • C. 

      Establish minimum performance criteria for backflow assembly surveyors

    • D. 

      All listed

  • 90. 
    Which of the following conditions would NOT cause a properly operating pressure differential valve to open? 
    • A. 

      Large pressure fluctuations

    • B. 

      A leaking #2 check valve with backpressure

    • C. 

      A leaking #2 shutoff valve

    • D. 

      A leaking #1 check valve

  • 91. 
    The minimum requirements for an approved air gap separation shall be at least.
    • A. 

      7 the effective opening of the supply pipe

    • B. 

      6" above the outlet of the supply pipe

    • C. 

      Twice the effective opening of the supply pipe, but not less than 1"

    • D. 

      12" above the surrounding ground or floor

  • 92. 
    ALL backflow assemblies are required to have 
    • A. 

      A check

    • B. 

      A test cock

    • C. 

      Isolation valves

    • D. 

      All listed

  • 93. 
    Before testing the #1 check valve of a DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY, you must first 
    • A. 

      Attach the high pressure hose to the test cock #3

    • B. 

      Attach the low pressure hose to test cock #2

    • C. 

      Close shutoff valve #1

    • D. 

      Flush all four test cocks

  • 94. 
    A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY test and maintenance report shall include all of the following information except the 
    • A. 

      Address of the installation

    • B. 

      Serial # of the assembly

    • C. 

      Test results of check valve #1

    • D. 

      Differential pressure relief valve discharge reading

  • 95. 
    For containment protection in a low hazard situation, the minimum protection required shall be ……     
    • A. 

      Reduced Pressure Principal Backflow preventer

    • B. 

      2 single check valves in series

    • C. 

      Double Check Backflow prevention assembly

    • D. 

      Atmospheric Type Vaccum Breaker

  • 96. 
    In addition to the air gap separation, the recommended backflow protection for the potable water supply to a pump used for handling raw sewage is a/an…… 
    • A. 

      DOUBLE CHECK DETECTOR ASSEMBLY BACKFLOW PREVENTER

    • B. 

      DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY

    • C. 

      REDUCED PRESSURE PRINCIPAL BACKFLOW PREVENTER

    • D. 

      PRESSURE VACCUM BREAKER ASSEMBLY

  • 97. 
    A backflow preventer with intermediate Atmospheric Vent must be installed to allow….. 
    • A. 

      DRAINAGE BETWEEN THE CHECK VALVES

    • B. 

      FULL-PORT FLOW

    • C. 

      HORIZONTAL FLOW

    • D. 

      HYDRAULIC SHOCK RELIEF

  • 98. 
    Potential cross connections can be 
    • A. 

      Best protected with an Atmospheric Vacuum Breaker

    • B. 

      Controlled with water pressure

    • C. 

      Permitted by a plumbing inspector

    • D. 

      Numerous, varried, and unpredictable

  • 99. 
    The federal law placing responsibility for the protection of the public water supply on the purveyor of the water is.... 
    • A. 

      OSHA

    • B. 

      Safe Drinking Water Act

    • C. 

      FDA Unicode

    • D. 

      Clean water act

  • 100. 
    An air gap, to be considered affected by two intersecting walls, must encroach upon or be within a zone, defined as______     times the effective opening of the potable water outlet in width. 
    • A. 

      1 1/2

    • B. 

      2

    • C. 

      3

    • D. 

      4