Test 1 Flashcards by Kennedey Paine

WHAT IS THE PRESSURE AT THE BASE OF A 100’ HIGH STANDPIPE FILLED WITH WATER?
A. 0.433
B. 2.31
C. 14.7
D. 43.3

D. 43.3

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A COLUMN OF WATER EXERTS PRESSURE AT THE BOTTOM OF A COLUMN DUE TO?
A. ATMOSPHERIC PRESSURE
B. TEMPERATURE OF THE WATER
C. WEIGHT OF THE WATER
D. MINERALS IN THE WATER

C. WEIGHT OF THE WATER

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WHAT IS THE PRIMARY CONSIDERATION WHEN DECIDING WHETHER TO INSTALL A REDUCED PRESSURE OF A DOUBLE CHECK VALVE ASSEMBLY?
A. AVAILABLE SPACE FOR INSTALLATION
B. COST
C. AVAILABILITY OF A FLOOR DRAIN
D. DEGREE OF HAZARD

D. DEGREE OF HAZARD

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A CROSS-CONNECTION IS AN ACTUAL OR POTENTIAL CONNECTION THAT COULD ALLOW BACKFLOW TO OCCUR BETWEEN A POTABLE WATER SYSTEM AND A PIPING SYSTEM THAT CONTAINS POTENTIALLY UNSAFE _.
A. WATER
B. WATER OR STEAM
C. WATER, STEAM OR GASES
D. WATER, STEAM, GASES, CHEMICALS OR UNKNOWN SUBSTANCES

D. WATER, STEAM, GASES, CHEMICALS OR UNKNOWN SUBSTANCES

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WHAT ARE TWO TYPES OF BACKFLOW CONDITIONS?

A. BACKPRESSURE AND BACKSIPHONAGE
B. BACKSIPHONAGE AND CAPILLARY ACTION
C. ISOLATION AND CONTAINMENT
D. POTABLE AND NON-POTABLE

A. BACKPRESSURE AND BACKSIPHONAGE

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A LINK BETWEEN A POTABLE WATER SUPPLY AND ANY NON-POTABLE SUPPLY OR SOURCE IS CALLED A(N)?
A. AIR GAP
B. BARAMETRIC LOOP
C. CROSS-LOOP
D. CROSS-CONNECTION

D. CROSS-CONNECTION

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A CHECK VALVE IN AN APPROVED BACKFLOW ASSEMBLY MUST BE:
A. RESILIENT SEATED AND LOADED TO THE OPEN POSITION.
B. RESILIENT SEATED AND LOADED TO THE CLOSED POSITION.
C. HARD SEATED AND LOADED TO THE OPEN POSITION.
D. HARD SEATED AND LOADED TO THE CLOSED POSITION.

B. RESILIENT SEATED AND LOADED TO THE CLOSED POSITION.

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TO AVOID CREATING WATER HAMMER, WHEN RETURNING A BACKFLOW PREVENTION ASSEMBLY TO SERVICE THE TESTER SHOULD _________.
A. SLOWLY PRESSURIZE THE ASSEMBLY AND THEN SLOWLY PRESSURIZE THE DOWNSTREAM PIPING.
B. SLOWLY PRESSURIZE THE DOWNSTREAM PIPING AND THEN SLOWLY PRESSURIZE THE ASSEMBLY.
C. CLOSE SHUT-OFF VALVE #2 AFTER OPENING SHUT-OFF VALVE #1.
D. CLOSE SHUT-OFF VALVE #1 AFTER OPENING SHUT-OFF VALVE #2.

A. SLOWLY PRESSURIZE THE ASSEMBLY AND THEN SLOWLY PRESSURIZE THE DOWNSTREAM PIPING.

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IN A BACKSIPHONE CONDITION, THE CHECK VALVES OF A DOUBLE CHECK ASSEMBLY WILL BE ____________.
A. 1ST CHECK CLOSED AND 2ND CHECK OPEN.
B. 1ST CHECK OPEN AND 2ND CHECK CLOSED.
C. 1ST CHECK OPEN AND 2ND CHECK OPEN.
D. 1ST CHECK CLOSED AND 2ND CHECK CLOSED.

D. 1ST CHECK CLOSED AND 2ND CHECK CLOSED.

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HOW MANY TEST COCKS MUST AN APPROVED DOUBLE CHECK VALVE ASSEMBLY HAVE?
A. 3
B. 4
C. 5
D. 8

B. 4

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A LEAKING CHECK VALVE #2 OF A REDUCED PRESSURE ASSEMBLY AND BACKPRESSURE MAY CAUSE ____________.
A. PRESSURE REGULATOR DAMAGE
B. DISC COMPRESSION
C. RELIEF VALVE DISHCARGE
D. CHECK VALVE #1 TO OPEN

C. RELIEF VALVE DISHCARGE

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WHAT COULD BE THE PROBLEM IF THE RELIEF VALVE OF A REDUCED PRESSURE ASSEMBLY DISCHARGES INTERMITTENTLY?
A. SHUT-OFF VALVE #1 IS CLOSED WITH BACKPRESSURE
B. SHUT-OFF VALVE #1 IS OPEN WITH BACKPRESSURE
C. LARGE PRESSURE FLUCTUATIONS
D. ASSEMBLY IS IMPROPERLY SIZED

C. LARGE PRESSURE FLUCTUATIONS

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WHICH OF HTE FOLLOWING BACKFLOW ASSEMBLIES CONTAINS AN INDEPENDENTLY OPERATING INTERNALLY LOADED CHECK VALVE AND AN INDEPENDENTLY OPERATING LOADED AIR INLET VALVE LOCATED ON THE DISCHARGE SIDE OF THE CHECK?
A. ATMOSPHERIC VACUUM BREAKER
B. DOUBLE CHECK VALVE ASSEMBLY
C. PRESSURE VACUUM BREAKER ASSEMBLY
D. REDUCED PRESSURE BACKFLOW ASSEMBLY

C. PRESSURE VACUUM BREAKER ASSEMBLY

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WHILE TESTING A REDUCED PRESSURE ASSEMBLY, IF THE HIGH SIDE HOSE IS CONNECTED TO THE TEST COCK #3 AND THE LOW SIDE IS CONNECTED TO THE TEST COCK #2, THE NEEDLE ON THE TEST KIT GAUGE WILL INDICATE ________.
A. NO DIFFERENTIAL
B. 15 PSID
C. THE APPARENT STATIC PRESSURE DROP ACROSS CHECK VALVE #1
D. THE OPENING POINT OF THE DIFFERENTIAL PRESSURE RELIEF VALVE

A. NO DIFFERENTIAL

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A DOUBLE CHECK VALVE ASSEMBLY MUST BE TESTED AT LEAST EVERY?
A. 6 MONTHS
B. 12 MONTHS
C. 18 MONTHS
D. 24 MONTHS

B. 12 MONTHS

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WHEN TESTING THE RELIEF OPENING POINT ON A REDUCED PRESSURE BACKFLOW ASSEMBLY, THE TESTER NEEDED TO OPEN THE LOW CONTROL VALVE MORE THAN 1/4 TURN. WHAT WOULD THIS INDICATE?
A. CHECK VALVE #1 LEAKS
B. CHECK VALVE #2 LEAKS
C. THE RELIEF VALVE LEAKS
D. THE SHUT-OFF VALVE LEAKS

D. THE SHUT-OFF VALVE LEAKS

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TO TEST CHECK VALVE #2 OF THE REDUCED PRESSURE ASSEMBLY FOR TIGHTNESS AGAINST BACKPRESSURE, WHICH TEST KIT CONTROL VALVES MUST BE IN THE OPEN POSITION?
A. HIGH AND LOW
B. HIGH AND BYPASS
C. LOW AND BYPASS
D. HIGH, LOW, AND BYPASS

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B. HIGH AND BYPASS

WHEN SETTING UP THE REDUCED PRESSURE ASSEMBLY FOR TESTING, THE TESTER CLOSES SHUT-OFF VALVE #2, OBSERVES THE GAUGE DROP TO THE LOW END OF THE SCALE, AND WATER DISCHARGES FROM THE RELIEF. THE TESTER WOULD THEN _________.
A. CONTINUE THE TEST
B. STOP THE TEST AND FAIL THE ASSEMBLY
C. OPEN SHUT-OFF VALVE #2 AND RETEST THE ASSEMBLY
D. RESET THE TEST KIT WITH THE LOW BLEED AND RETEST THE ASSEMBLY*

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B. STOP THE TEST AND FAIL THE ASSEMBLY

WHICH OF THE FOLLOWING BACKFLOW ASSEMBLIES IS ALLOWABLE FOR THE USE AGAINST A CONTAMINANT WHEN THE BACKFLOW COULD BE CAUSED BY BACKPRESSURE?
A. ATMOSPHERIC VACUUM BREAKER
B. DOUBLE CHECK VALVE ASSEMBLY
C. PRESSURE VACUUM BREAKER ASSEMBLY
D. REDUCED PRESSURE BACKFLOW ASSEMBLY

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D. REDUCED PRESSURE BACKFLOW ASSEMBLY

WHILE TESTING CHECK VALVE #2 OF A REDUCED PRESSURE BACKFLOW ASSEMBLY UNDER BACKPRESSURE, WHAT WOULD BE OBSERVED IF THE SECOND CHECK VALVE WAS FOULED?
A. NO DIFFERENTIAL ON THE TEST KIT AND NO DISCHARGE FROM THE RELIEF VALVE.
B. NO DIFFERENTIAL ON THE TEST KIT AND DISCHARGE FROMN THE RELIEF VALVE.
C. DIFFERENTIAL ON THE TEST KIT AND NO DISCHARGE FROM THE RELIEF VALVE.
D. DIFFERENTIAL ON THE TEST KIT AND DISCHARGE FROM THE RELIEF VALVE.

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D. DIFFERENTIAL ON THE TEST KIT AND DISCHARGE FROM THE RELIEF VALVE.

WHAT COULD BE DETERMINED WHILE TESTING CHECK VALVE #1 OF A DOUBLE CHECK VALVE ASSEMBLY IF THE GAUGE READS 0.7 PSID?
A. CHECK VALVE #1 IS DEFECTIVE
B. CHECK VALVE #2 IS DEFECTIVE
C. SHUT-OFF VALVE #1 IS LEAKING
D. SHUT-OFF VALVE #2 IS LEAKING

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A. CHECK VALVE #1 IS DEFECTIVE

WHAT COULD A TESTER DETERMINE IF WATER IS OBSERVED FLOWING FROM THE AIR INLET OF THE PRESSURE VACUUM BREAKER PRIOR TO STARTING THE TEST?
A. SHUT-OFF VALVE #1 IS OPEN OR LEAKING
B. SHUT-OFF VALVE #2 IS OPEN OR LEAKING WITH BACKPRESSURE
C. AIR INLET VALVE IS DEFECTIVE
D. CHECK VALVE IS LEAKING

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C. AIR INLET VALVE IS DEFECTIVE

WHAT MAY BE DETERMINED WHEN TESTING THE AIR INLET VALVE OF AN APPROVED PRESSURE VACUUM BREAKER IF THE AIR INLET VALVE IS OBSERVED TO OPEN AFTER CLOSING SHUT-OFF VALVE #1?
A. AIR INLET VALVE IS DEFECTIVE
B. SHUT-OFF VALVE #1 IS LEAKING
C. SHUT-OFF VALVE #2 IS LEAKING WITH FLOW DOWNSTREAM
D. SHUT-OFF VALVE #2 IS LEAKINGI WTH BACKPRESSURE

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C. SHUT-OFF VALVE #2 IS LEAKING WITH FLOW DOWNSTREAM

WHERE IS THE #2 TEST COCK OF A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY LOCATED?
A. UPSTREAM OF THE SHUT-OFF VALVE #1
B. UPSTREAM OF CHECK VALVE #1
C. DOWNSTREAM OF SHUT-OFF VALVE #2
D. BETWEEN #1 AND #2 CHECK VALVE

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B. UPSTREAM OF CHECK VALVE #1

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

C. INLET SHUT-OFF VALVE #1

WHICH ARE 2 TYPES OF CROSS CONNECTIONS? A. POLLUTANT AND CONTAMINANT B. BACKSIPHONAGE AND BACKPRESSURE C. LOW AND HIGH D. TOXIC AND NON-TOXIC E. DIRECT AND INDIRECT

E. DIRECT AND INDIRECT

WHAT IS CONSIDERED TO BE THE CRITICAL LEVEL OF A PRESSURE VACUUM BREAKER ASSEMBLY IF IT IS NOT MARKED? A. THE AIR INLET VALVE B. THYE BOTTOM OF THE INLET PIPING C. SHUT-OFF VALVE #2 D. TH BOTTOM OF THE VALVE BODY E. THE BOTTOM OF THE DISCHARGE PIPING

D. TH BOTTOM OF THE VALVE BODY

WHERE WILL AN ATMOSPHERIC VACUUM BREAKER USUALLY BE INSTALLED? A. IN A BOILER SYSTEM MAKE-UP LINE B. IN THE SERVICED CONNECTION TO A RESIDENCE C. IN THE SERVICE CONNECTION TO A CAR WASH D. IN A FIRE SPRINKLER SYSTEM E. NONE OF THE ABOVE

E. NONE OF THE ABOVE

WHEN PROTECTED BY A PIPE APPLIED ATMOSPHERIC VACUUM BREAKER, A 2" INLET TO A TANK SHALL BE INSTALLED AT LEAST _____ ABOVE THE FLOOD LEVEL OF THE TANK. A. 2" B. 4" C. 6" D. 8" E. 12"

C. 6"

WHAT IS THE SUGGESTED MINIMUM VERTICAL DISTANCE BETWEEN THE RELIEF VALVE DISCHARGE PORT OF A REDUCE PRESSURE PRINCIPLE BACKFLOW PREVENTER ASSEMBLY AND THE FLOOR PLANE? A. 6" B. 12" C. 18" D. 24" E. 30"

B. 12"

WHICH OF TH FOLLOWING IS NOT A TYPICAL TEST COCK AAPTER FITTING SIZE? A. 1/8" X 1/4" B. 1/4" X 1/4" C. 3/8" X 1/4" D. 1/2" X 1/4" E. 3/4" X 1/4"

C. 3/8" X 1/4"

WHEN PERFORMING A FIELD TEST OF A REDUCED PRESSURE PRINCIPLE BACKRFLOW ASSEMBLY, THE #2 TEST COCK SHOULD BE _________. A. FLUSHED FIRST B. FLUSHED LAST C. FLUSHED WITH CAUTION TO PREVENT A PREMATURE RELIEF VALVE DISCHARGE. D. PLUGGED

C. FLUSHED WITH CAUTION TO PREVENT A PREMATURE RELIEF VALVE DISCHARGE.

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

D. ALL OF THE ABOVE

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. PROVIDES ALL THE ABOVE

B. OFFERS NO PROTECTION TO INDIVIDUALS WITHIN A FACILITY

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. AT AN EASILY ACCESSIBLY LOCATION IN A HEATED BUILDING D. AT OR NEAR THE CEILING IN A BASEMENT

C. AT AN EASILY ACCESSIBLY LOCATION IN A HEATED BUILDING

A CERTIFIED TESTER MUST DESCRIBE THE PROPER APPLICATION OF A BACKFLOW PREVENTION ASSEMBLY AND THEIR LIMITATIONS WITH RESPECT TO _________. A. MINIMUM AND MAXIMUM ASSEMBLY WORKING PRESSURE B. MINIMUM AND MAXIMUM ASSEMBLY WORKING REMPERATURES C. BACKFLOW AND DEGREE OF HAZARD D. ALL OF THE ABOVE E. NONE OF THE ABOVE

D. ALL OF THE ABOVE

A CERTIFIED TESTER MUST RECORD ALL OF THE FOLLOWING PHYSICAL IDENTIFICATION OF A BACKFLOW PREVENTION ASSEMBLY EXCEPT THE _________. A. MANUFACTURER B. DEGREE OF HAZARD C. MODEL # D. SERIAL # E. LOCATION OF ASSEMBLY

B. DEGREE OF HAZARD

THE FOLLOWING STATEMENT IS CORRECT IN REGARDS TO A PIPE APPLIED ATMOSPHERIC VACUUM BREAKER. A. IT INCLUDES AN UPSTREAM SHUT-OFF VALVE B. IT INCLUDES A SPRING LOADED CHECK VALVE C. IT IS USED FOR LOW HAZARD PROTECTION ONLY D. IT INCLUDES A SPRING OADED AIR INLET VALVE E. IT MUST BE USED FOR BACKSIPHONAGE PROTECTION ONLY

E. IT MUST BE USED FOR BACKSIPHONAGE PROTECTION ONLY

WHY MUST ADEQUATE CLEARANCE BE PROVIDED ABOVE A BACKFLOW PREVENTION ASSEMBLY? A. FOR THE OPERATION OF THE SHUT-OFF VALVES B. FOR MAINTENANCE AND REPAIR C. FOR TESTING PURPOSES D. FOR VISUAL INSPECTION OF THE ASSEMBLY E. FOR ALL THE ABOVE REASONS

E. FOR ALL THE ABOVE REASONS

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

C. MULTIPLY BY .433

Test 1 Flashcards

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