Test 2

Question 1

A TESTER IS PERFORMING A FIELD TEST ON A REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER. DURING THE TEST THE #2 CHECK VALVE IS FOUND TO BE LEAKING. AFTER MAKING THE NECESSARY REPAIRS, WHAT WOULD THE NEXT STEP BE?
A. RETEST THE #2 CHECK VAQLVE
B. RETEST THE ENTIRE ASSEMBLY
C. RETEST THE RELIEF VALVE
D. RETEST THE #1CHECKVALVE
E. APPROVE THE ASSEMBLY WITHOUT ANY RETESTING

Answer 1

B. RETEST THE ENTIRE ASSEMBLY

Question 2

WHAT IS THE PROBABLE CAUSE OF A RELIEF VALVE FAILING TO OPEN DURING A FIELD TEST ON A REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER?
A. LEAKING #1 SHUT-OFF
B. LOW WATER SUPPLY PRESSURE
C. AIR TRAPPED INSIDE THE RELIEF VALVE
D. EXCESSIVE BACKPRESSURE
E. A MALFUNCTION OF THE RELIEF VALVE MECHANISM

Answer 2

E. A MALFUNCTION OF THE RELIEF VALVE MECHANISM

Question 3

WHAT SHOULD YOU DO IF THE AIR INLET VALVE OF A PRESSURE VACUUM BREAKER ASSEMBLY WILL NOT SEAT?
A. THE AIR INLET VALAVE 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

Answer 3

D. INCREASE THE SUPPLY PRESSURE

Question 4

BACKSIPHONAGE CAN BE CAUSED BY AN UNDERSIZED WATER PIPE CARRYING WATER AT A HIGH VELOCITY DUE TO _________.
A. VACUUM EFFECT
B. PIVOT EFFECT
C. VENTURI EFFECT
D. MARGINAL EFFECT
E. GRAVITY EFFECT

Answer 4

C. VENTURI EFFECT

Question 5

WAHT 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

Answer 5

E. THE LOSS OF PRESSURE IN THE SYSTEM

Question 6

WHAT TYPE OF A PROTECTION IS PROVIDED BY A BAROMETRIC LOOP?
A. BACKPRESSURE BACKFLOW
B. ATMOSPHERIC BREAK
C. BACKSIPHONAGE BACKFLOW
D. BACKPRESSURE AND BACKSIPHONAGE BACKFLOW

Answer 6

C. BACKSIPHONAGE BACKFLOW

Question 7

THE REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER IS NOT REQUIRED AT THE SERVICE CONNECTION OF THIS FACILITY.
A. CAR WASH
B. SEWAGE TREATMENT PLANT
C. PLATING PLANT
D. SINGLE FAMILY DWELLING
E. HOSPITAL

Answer 7

D. SINGLE FAMILY DWELLING

Question 8

THE PROPER INSTALLATION OF A PIPE APPLIED ATMOSPHERIC VACUUM BREAKER ON A N IRRIGATION SYSTEM PERMITS THE DOWNSTREAM PIPING TO BE ELEVATED ABOVE THE ATMOSPHERIC VACUUM BREAKER IF ________.
A. THERE ARE NO CONTROL VALVE DOWNSTREAM
B. THE SPRINKLER HEADS ARE AT LEAST 6” BELOW THE AVB
C. A HOSE BIBB IS INSTALLED DOWNSTREAM
D. SHUT-OFF VALVE IS INSTALLED DOWNSTREAM
E. NONE OF THE ABOVE, THIS IS NOT ALLOWED.

Answer 8

E. NONE OF THE ABOVE, THIS IS NOT ALLOWED.

Question 9

WHICH OF THE FOLLOWING IS AN ACCEPTABLE BACKFLOW PREVENTION DEVICE?
A. SWIVEL CONNECTION
B. SPOOL PIECE
C. 4-WAY CONTROL VALVE
D. 2 SWING CHECK VALVES IN TANDEM
E. NONE OF THE ABOVE

Answer 9

E. NONE OF THE ABOVE

Question 10

GIVE A REASON WHY A TEST COCK WOULD NOT BE FLUSHED.
A. TO DETERMINE FLOW THROUGHTHE 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. TO DETERMINE THAT THE TEST COCKS ARE NOT PLUGGED

Answer 10

B. TO EQUALIZE PRESSURE ON BOTH SIDES OF THE CHECK VALVE

Question 11

HOW CAN YOU STOP AN OCCASIONAL DISHCARGE OF WATER FROM THE RELIEF VALVE OF A REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER CAUSED BY SUPPLY PRESSURE FLUCTUATIONS?
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 GLOVE 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.

Answer 11

B. BY INSTALLING A SOFT SEAT CHECK VALVE UPSTREAM OF THE ASSEMBLY.

Question 12

ON WHICH OF THE FOLLOWING IS IT NECESSARY TO RECORD THE PRESSURE DIFFERENTIAL OAT WHICH THE RELIEF VALVE OPENS DURING A FIELD TEST?
A. REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER
B. A DOUBLE CHECK DETECTOR ASSEMBLY BACKFLOW PREVENTER
C. BOTH A & D
D. A REDUCED PRESSURE DETECTOR BACKFLOW PREVENTER

Answer 12

C. BOTH A & D

Question 13

A FACILITY REQUIRING CONTINUOUS WATER SUPPLY SHOULD DO THIS WHEN INSTALLING A “CONTAINMENT” DEVICE.
A. INSTALL 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

Answer 13

B. INSTALL 2 SIMILAR DEVICES IN PARALLEL

Question 14

HOW OFTEN SHOULD ALL TESTING EQUIPMENT BE RECALIBRATED ACCORDING TO THE ANSI/ASSE SERIES 5000?
A. WHENEVER THE TESTER SAYS SO
B. EVERY 5 YEARS
C. ACCORDING TO THE TESTING EQUIPMENT MANUFACTURERS INSTALLATION INSTRUCTIONS.
D. ALL OF THE ABOVE.
E. NONE OF THE ABOVE

Answer 14

C. ACCORDING TO THE TESTING EQUIPMENT MANUFACTURERS INSTALLATION INSTRUCTIONS.

Question 15

A CROSS-CONNECTION CONTROL SURVEYS CHECKLIST EXCLUDES THE FOLLOWING PER THE ANSI/ASSE SERIES 5000.
A. ASSEMBLY IDENTIFICATION
B. ASSEMBLY & DEVICE LOCATIONS
C. LOCAL CODES
D. NONE OF THE ABOVE

Answer 15

C. LOCAL CODES

Question 16

THE UNINTENTIONAL REVERSAL OF FLOW IN A POTABLE WATER SYSTEM WHICH MAY RESULT IN CONTAMINATION OR POLLUTION OF THE SYSTEM IS KNOWN AS _________.
A. TOXIC
B. BACKFLOW PREVENTER
C. NON-POTABLE WATER
D. BACKSIPHONAGE
E. BACKFLOW

Answer 16

E. BACKFLOW

Question 17

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”

Answer 17

B. 12”

Question 18

WHAT MUST BE CONCLUDED WITH AN APPROVED BACKFLOW PREVENTION ASSEMBLY?
A. BALL VALVES FOR SHUT-OFF VALVES
B. UPSTREAM STRAINER
C. RESILIENT SEATED SHUT-OFF VALVES
D. SINGLE HANDLE TEST COCKS
E. STAINLESS SWTEEL CHECK VALVES

Answer 18

C. RESILIENT SEATED SHUT-OFF VALVES

Question 19

Q= VOLUME, V= AVERAGE VELOCITY, A= CROSS SECTIONAL AREA OF THE PIPE.
WHAT IS THE CORRECT FORMULA USE FOR CALCULATING THE VOLUME FLOW RATE?
A. Q= A / V
B. Q= V - A
C. Q= V / A
D. Q= A x V

Answer 19

D. Q= A x V

Question 20

HOW OFTEN SHOULD TEST EQUIPMENT BE CHECK FOR CALIBRATION?
A. MONTHLY
B. QUARTERLY
C. SEMI-ANNUALLY
D. AT THE TIME OF PURCHASE ONLY
E. ANNUALLY

Answer 20

E. ANNUALLY

Question 21

WHAT IS THE USUAL CAUSE OF AN ABNORMAL HUMMING NOISE DURING THE OPERATION OF A BACKFLOW PREVENTION ASSEMBLY?
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

Answer 21

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

Question 22

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’

Answer 22

E. 33.9’

Question 23

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

Answer 23

E. TO DETECT UNAUTHORIZED WATER USAGE

Question 24

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

Answer 24

A. IS CONSIDERED TO BE A CROSS-CONNECTION AND NEVER PERMITTED.

Question 25

WHAT NORMALLY PROTECTS THE POTABLE WATER SUPPLY TO A URINAL EQUIPPED WITH A FLUSHOMETR VALVE? A. REDUCED PRESSURE PRINCIPLE BACKFLOW B. DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY C. PIPE APPLIED ATMOSPHERIC VACUUM BREAKER D. DUAL CHECK TYPE BACKFLOW PREVENTER E. PRESSURE VACUUM BREAKER ASSEMBLY

Answer 25

C. PIPE APPLIED ATMOSPHERIC VACUUM BREAKER

Question 26

AN ABSOLUTE PRESSURE OF 25 PSIA (AT SEA LEVEL) IS EQUAL TO APPROXIMATELY ______. A. 5 PSIG B. 10 PSIG C. 15 PSIG D. 20 PSIG

Answer 26

B. 10 PSIG

Question 27

THE TEST A MAINTENANCE REPORT FOR A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY EXCLUDES THE FOLLOWING: A. SERIAL # OF THE ASSEMBLY B. TEST RESULTS OF CHECK VALVE #1 C. TEST RESULTS OF CHECK VALVE #2 D. DIFFERENTIAL PRESSURE RELIEF VALVE DISCHARGE E. ADDRESS OF INSTALLATION

Answer 27

D. DIFFERENTIAL PRESSURE RELIEF VALVE DISCHARGE

Question 28

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 ASEMBLY

Answer 28

B. ATMOSPHERIC VACUUM BREAKER

Question 29

THE DEGREE OF 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. THE DISTANCE BETWEEN THE CROSS-CONNECTION AND THE BACKFLOW ASSEMBLY

Answer 29

C. BASED UPON THE QUALITY OF A NON-POTABLE WATER SYSTEM

Question 30

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

Answer 30

C. OPERATED WITH CONTINUOUS PRESSURE

Question 31

A TERM THAT DESCRIBES THE QUALI5TY OF WATER THAT IS IMPAIRED IN RESPECT TO TASTE, ODOR, OR USILITY BUT DOES NOT CONSTITUTE A HEALTH HAZARD IS _____________. A. TOXIC B. POLLUTANT C. BACKSIPHONAGE D. CONTAINMENT

Answer 31

B. POLLUTANT

Question 32

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.

Answer 32

B. THE PRESSURE EXERTED BY THE WEIGHT OF THE ATMOSPHERE (14.7 PSI AT SEA LEVEL)

Question 33

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

Answer 33

A. 10.5 PSIA

Question 34

AN ATMOSPHERIC TYPE VACUUM BREAKERS CRITICAL COMPONENT SUBJECT TO FAILURE IS THE ____________. A. UPSTREAM SHUT-OFF VALVE B. LOADED CHECK VALVE C. CANOPY D. AIR INLET VALVE

Answer 34

D. AIR INLET VALVE

Question 35

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 OF THE ABOVE

Answer 35

C. FLOOD LEVEL RIM OF THE RECEPTACLE

Question 36

THE WEIGHT OF A 1 CUBIC FOOT OF WATER AT SEA LEVEL IS _______. A. 14.4 LBS B. 23.5 LBS C. 37.5 LBS D. 62.4 LBS

Answer 36

D. 62.4 LBS

Question 37

WHICH OF THE FOLLOWING IS NOT A CAUSE OF BACKPRESSURE? A. ELEVATED PLUMBING B. THERMAL EXPANSION C. PUMPS D. ASPIRATION

Answer 37

D. ASPIRATION

Question 38

ACCORDING TO THE ASSE SERIES 5000, A CERTIFIED TESTER MUST RECORD ALL OF THE FOLLOWING PHYSICAL IDENTIFICATION OF A BACKFLOW PREVENTION ASSEMBLY EXCEPT THE __________. A. DEGREE OF HAZARD B. MODEL # C. SERIAL # D. LOCATION OF ASSEMBLY

Answer 38

A. DEGREE OF HAZARD

Question 39

WHAT TYPE OF BACKFLOW OCCURS WITH AN INDIRECT CROSS-CONNECTION? A. BACKPRESSURE B. INDIRECT C. BACKSIPHONAGE AND BACKPRESSURE D. BACKSIPHONAGE

Answer 39

D. BACKSIPHONAGE