Quiz Flashcards
A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY TEST AND MAINTENANCE REPORT SHALL INCLUDE ALL OF THE FOLLOWING INFORMATION EXCEPT THE
DIFFERENTIAL PRESSURE RELIEF VALVE DISCHARGE READING
THE BY-PASS LINE OF AN APPROVED BACKFLOW PREVENTION ASSEMBLY MUST CONTAIN AN APPROVED ASSEMBLY OF EQUAL:
PROTECTION
AN ATMOSPHERIC TYPE VACUUM BREAKER SHALL NOT BE SUBJECTED TO WATER PRESSURE FOR PERIODS THAN ______ HOURS
TWELVE (12)
IT IS POSSIBLE FOR A PERFECT VACUUM AT SEA LEVEL TO RAISE WATER IN A PIPE APPROXIMATELY _________ FEET.
THIRTY-FOUR (34)
WHAT IS THE MOST DESIRABLE PLACE TO INSTALL A BACKFLOW PREVENTION DEVICE AND/OR ASSEMBLY?
IN AN ACCESSIBLE LOCATION ABOVE GROUND
WHICH OF THE FOLLOWING CONDITIONS COULD RESULT IN WATER CONTAMINATION THROUGH A CROSS-CONNECTION?
TURNING OFF SERVICE TO A MULTI-STORY BUILDING AND ALLOWING THE WATER SUPPLY TO DRAIN
WHAT IS ANOTHER TERM THAT DESCRIBES WATER QUALITY AS A HEALTH HAZARD RESULTING FROM BACKFLOW?
CONTAMINATION
THE VENTURI EFFECT STATES THAT WHEN THE WATER VELOCITY WITHIN THE PIPE INCREASES, THE PRESSURE:
DECREASES
THE DEGREE OF HAZARD IS:
BASED UPON THE QUALITY OF A NON POTABLE WATER SOURCE
BACKFLOW MAY BE DESCRIBED AS EITHER:
BACKPRESSURE OR BACKSIPHONAGE
THE FEDERAL LAW PLACING RESPONSIBILITY FOR THE PROTECTION OF THE PUBLIC WATER SUPPLY ON THE PURVEYOR OF WATER IS THE:
SAFE DRINKING WATER ACT
HOW MANY INCHES MUST A PRESSURE TYPE VACUUM BREAKER ASSEMBLY BE INSTALLED ABOVE ALL DOWNSTREAM PIPING?
TWELVE (12)
A DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY WILL PROTECT THE POTABLE WATER SUPPLY FROM:
NON-HEALTH HAZARD – BACKPRESSURE AND BACKSIPHONAGE
HOW MANY INCHES MUST AN ATMOSPHERIC VACUUM BREAKER BE INSTALLED ABOVE ALL DOWNSTREAM PIPING AND HIGHEST OPENING?
SIX (6)
AN ATMOSPHERIC VACUUM BREAKER IS INSTALLED TO PROTECT AGAINST:
BACKSIPHONAGE – HEALTH HAZARD OR NON-HEALTH HAZARD CONDITIONS
THE TERM “APPROVED REDUCED PRESSURE PRINCIPLE ASSEMBLY”, APPLIES TO AN ASSEMBLY WITH TWO SHUT-OFF VALVES, FOUR TEST COCKS AND:
TWO APPROVED CHECK VALVES AND A DIFFERENTIAL PRESSURE RELIEF VALVE
IT IS REQUIRED THAT THE TEST GAUGE BE TESTED FOR ACCURACY AT LEAST:
ANNUALLY
UNDERSIZED WATER PIPING CARRYING WATER AT HIGH VELOCITY CAN CAUSE BACKSIPHONAGE DUE TO:
THE ASPIRATOR EFFECT
AN AIR GAP SEPARATION IS MEASURED FROM THE OUTLET OF THE DISCHARGE PIPE, TO THE:
FLOOD LEVEL RIM
THE MINIMUM TYPE OF CONTAINMENT PROTECTION FOR A NON-HEALTH HAZARD, NON-CHEMICAL FIRE SPRINKLER SYSTEM IS A(N):
DOUBLE CHECK DETECTOR ASSEMBLY BACKFLOW PREVENTER
THE TYPE OF PROTECTION REQUIRED FOR A CLOSED LOOP HEATING SYSTEM CONTAINING CHEMICALS IS:
REDUCED PRESSURE PRINCIPLE ASSEMBLY
FOR CONTAINMENT PROTECTION IN A NON-HEALTH HAZARD SITUATION, THE MINIMUM PROTECTION REQUIRED SHALL BE:
DOUBLE CHECK BACKFLOW PREVENTION ASSEMBLY
WATER CONTINUOUSLY LEAKING FROM TEST COCK #2 DURING A TEST PROCEDURE OF A PRESSURE VACUUM BREAKER ASSEMBLY IS PROBABLY CAUSED BY A LEAKING:
INLET SHUT-OFF VALVE #1
THE REQUIRED BACKFLOW PREVENTION ASSEMBLY FOR A FIRE SUPPRESSION SYSTEM CONTAINING CHEMICALS IS:
REDUCED PRESSURE DETECTOR ASSEMBLY OR REDUCED PRESSURE PRINCIPLE ASSEMBLY
THE REQUIRED TYPE OF BACKFLOW PROTECTION FOR A CLOSED LOOP PIPING SYSTEM CONTAINING GLYCOL IS:
REDUCED PRESSURE PRINCIPLE ASSEMBLY
THE PRIMARY CONSIDERATION IN DETERMINING WHAT TYPE OF BACKFLOW PREVENTER TO INSTALL IS
DEGREE OF HAZARD
WHAT IS THE PROBABLE CAUSE OF A RELIEF VALVE FAILING TO OPEN DURING A FIELD TEST ON A REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER?
A MALFUNCTION OF THE RELIEF VALVE MECHANISM
THE REQUIRED BACKFLOW PROTECTION FOR A CHEMICALLY CHARGED SOLAR HEATING SYSTEM WITH AN EXPANSION TANK IS A(N)
REDUCED PRESSURE PRINCIPLE ASSEMBLY
THE TYPE OF PROTECTION ASSOCIATED WITH AN AIR GAP SEPARATION IS
A) BACKSIPHONAGE – NON-HEALTH HAZARD
B) BACKSIPHONAGE – HEALTH HAZARD
C) BACKPRESSURE – NON-HEALTH HAZARD
D) BACKPRESSURE – HEALTH HAZARD
E) ALL OF THE ABOVE
THE APPLICATION OF A PRESSURE VACUUM BREAKER ASSEMBLY IS FOR:
BACKSIPHONAGE AND ISOLATION
