Backflow Practice Exam with correct
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answers
1) |Backflow |is |the |undesirable |reversal |of |flow |of |water |or |other |substances |through |a |cross |
connection |into |the |public |water |system |or |consumer's: |- |ANSWER✔✔✔-C. |Public |water |
system |or |consumer's |portable |water |system
2) |An |approved |airgap |(AG) |is |a |physical |separation |between |the |free-flowing |end |of |a: |- |
ANSWER✔✔✔-D. |Potable |water |supply |pipe |line |in |the |overflow |rim |of |an |open |or |non-
pressurized |receiving |vessel
3) |And |indirect |cross-connection |is |one |that |is |subject |to |what |type |of |backflow? |- |
ANSWER✔✔✔-A. |Only |backsiphonage
4 |)Cross-connections |with |between |the |portable |water |piping |in |any |piping |or |containers |
containing |substances |not |approved |as |potable |water |must |be |either |eliminated |or |controlled |
by |the |installation |of |an: |- |ANSWER✔✔✔-D. |Approved |air |gap |or |an |approved |backflow |
prevention |assembly
5) |While |testing |CV |#2 |of |a |DCVA |if |CV |#2 |leaks |the |BAT |would |observe |that |the |water |flow: |- |
ANSWER✔✔✔-D. |Stops |from |the |site |tube |at |TC#4 |and |no |differential |shows |on |the |gauge
6) |Service |protection |is |a |way |to |protect |a |public |water |system |from |contamination |due |to |
back |flow |from |the |customer's |water |system |by |the |installing |an |approved |backflow |preventer
|at |the: |- |ANSWER✔✔✔-A. |Service |connection |which |is |considered |to |be |at |or |near |the |water |
meter
7) |A |Washington |state |certified |Backflow |Assembly |Tester |is |certified |to: |- |ANSWER✔✔✔-D. |
Inspect, |test |and |monitor |backflow |prevention |assemblies
8) |The |RPBA |is |designed |so |that |if |the |check |valve |leaks, |the |relief |with |valve |may: |- |
ANSWER✔✔✔-B. |Open |to |discharge |through |the |relief |valve |vent
9) |An |AG |installed |in |lieu |of |an |approved |backflow |prevention |assembly |must |be |inspected |for
|compliance |with |the |definition |of |an |improved |air |gap |by: |- |ANSWER✔✔✔-C. |Either |a |CCS |or |
a |BAT
10) |After |testing |an |approved |backflow |prevention |assembly |the |BAT |shall |complete |a |test |
report |that |is |acceptable |to |the: |- |ANSWER✔✔✔-C. |Purveyor
11) |The |gauge |on |a |differential |pressure |test |kit |indicates: |- |ANSWER✔✔✔-C. |psid
, 12) |Loading |a |check |valve |with |springs |or |weights: |- |ANSWER✔✔✔-C. |Reduces |pressure |down
|stream |of |the |check |valve
13) |If |there |is |flow |across |CV#1 |and |through |an |RPBA |the |relief |valve |will |not |discharge |unless:
|- |ANSWER✔✔✔-C. |The |relief |valve |is |defective
14) |Microbiological |contaminates |entering |the |portible |water |system |are |always |a: |- |
ANSWER✔✔✔-A. |High-health |standard
15) |All |approved |backflow |prevention |assemblies |must |be |tested |with |a: |- |ANSWER✔✔✔-D. |
Differential |pressure |test |kit
16) |An |approved |backflow |prevention |assembly |is |an: |- |ANSWER✔✔✔-C. |RPBA, |RPDA, |DCVA, |
DCDA, |PVBA, |or |SVBA |of |make, |model, |and |size |that |is |approved |by |the |DOH
17) |Permanent |support |blocks |are |required |under |all |approved |backflow |assemblies |that |are: |-
|ANSWER✔✔✔-D. |A |large |size |assembly
18) |A |backflow |assembly |test |report |must |be: |- |ANSWER✔✔✔-C. |Complete, |accurate |and |
legible
19) |SOV |#1 |of |a |properly |installed |PVBA |
is |reported |as |leaking |while |testing |the |air |inlet |valve |if |water |continues |to |flow |from: |- |
ANSWER✔✔✔-C. |The |high-bleed |valve |and |the |differential |gauge |does |not |drop |to |the |
opening |point |of |the |Air |Inlet |Valve
20) |The |differential |pressure |relief |valve |must |discharge |water |to |the |atmosphere |when |the |
pressure |in |the |zone |between |the |check |valves |is |with |in: |- |ANSWER✔✔✔-B. |2 |psi |of |the |
pressure |upstream |of |CV |#1
21) |The |Undesirable |reversal |of |flow |of |water |or |other |substances |through |a |cross |connection |
into |the |public |water |system |or |consumers |potible |water |system |is: |- |ANSWER✔✔✔-D. |
Backflow
22) |While |testing |CV#2 |of |an |RPBA |the |BAT |must |determine |if |CV#2 |closes |tight: |- |
ANSWER✔✔✔-D. |In |the |reverse |direction |of |flow
23) |A |DCDA |should |not |be |installed: |- |ANSWER✔✔✔-B. |Where |pressure |in |the |water |system |
is |greater |than |the |assembly's |maximum |working |water |pressure
24) |The |contents |of |the |backflow |assembly |test |report |completed |after |testing |a |backflow |
prevention |assembly |installed |at |the |water |meter |must |meet |the |requirements |of |the: |- |
ANSWER✔✔✔-D. |Water |purveyor
| | | | |
answers
1) |Backflow |is |the |undesirable |reversal |of |flow |of |water |or |other |substances |through |a |cross |
connection |into |the |public |water |system |or |consumer's: |- |ANSWER✔✔✔-C. |Public |water |
system |or |consumer's |portable |water |system
2) |An |approved |airgap |(AG) |is |a |physical |separation |between |the |free-flowing |end |of |a: |- |
ANSWER✔✔✔-D. |Potable |water |supply |pipe |line |in |the |overflow |rim |of |an |open |or |non-
pressurized |receiving |vessel
3) |And |indirect |cross-connection |is |one |that |is |subject |to |what |type |of |backflow? |- |
ANSWER✔✔✔-A. |Only |backsiphonage
4 |)Cross-connections |with |between |the |portable |water |piping |in |any |piping |or |containers |
containing |substances |not |approved |as |potable |water |must |be |either |eliminated |or |controlled |
by |the |installation |of |an: |- |ANSWER✔✔✔-D. |Approved |air |gap |or |an |approved |backflow |
prevention |assembly
5) |While |testing |CV |#2 |of |a |DCVA |if |CV |#2 |leaks |the |BAT |would |observe |that |the |water |flow: |- |
ANSWER✔✔✔-D. |Stops |from |the |site |tube |at |TC#4 |and |no |differential |shows |on |the |gauge
6) |Service |protection |is |a |way |to |protect |a |public |water |system |from |contamination |due |to |
back |flow |from |the |customer's |water |system |by |the |installing |an |approved |backflow |preventer
|at |the: |- |ANSWER✔✔✔-A. |Service |connection |which |is |considered |to |be |at |or |near |the |water |
meter
7) |A |Washington |state |certified |Backflow |Assembly |Tester |is |certified |to: |- |ANSWER✔✔✔-D. |
Inspect, |test |and |monitor |backflow |prevention |assemblies
8) |The |RPBA |is |designed |so |that |if |the |check |valve |leaks, |the |relief |with |valve |may: |- |
ANSWER✔✔✔-B. |Open |to |discharge |through |the |relief |valve |vent
9) |An |AG |installed |in |lieu |of |an |approved |backflow |prevention |assembly |must |be |inspected |for
|compliance |with |the |definition |of |an |improved |air |gap |by: |- |ANSWER✔✔✔-C. |Either |a |CCS |or |
a |BAT
10) |After |testing |an |approved |backflow |prevention |assembly |the |BAT |shall |complete |a |test |
report |that |is |acceptable |to |the: |- |ANSWER✔✔✔-C. |Purveyor
11) |The |gauge |on |a |differential |pressure |test |kit |indicates: |- |ANSWER✔✔✔-C. |psid
, 12) |Loading |a |check |valve |with |springs |or |weights: |- |ANSWER✔✔✔-C. |Reduces |pressure |down
|stream |of |the |check |valve
13) |If |there |is |flow |across |CV#1 |and |through |an |RPBA |the |relief |valve |will |not |discharge |unless:
|- |ANSWER✔✔✔-C. |The |relief |valve |is |defective
14) |Microbiological |contaminates |entering |the |portible |water |system |are |always |a: |- |
ANSWER✔✔✔-A. |High-health |standard
15) |All |approved |backflow |prevention |assemblies |must |be |tested |with |a: |- |ANSWER✔✔✔-D. |
Differential |pressure |test |kit
16) |An |approved |backflow |prevention |assembly |is |an: |- |ANSWER✔✔✔-C. |RPBA, |RPDA, |DCVA, |
DCDA, |PVBA, |or |SVBA |of |make, |model, |and |size |that |is |approved |by |the |DOH
17) |Permanent |support |blocks |are |required |under |all |approved |backflow |assemblies |that |are: |-
|ANSWER✔✔✔-D. |A |large |size |assembly
18) |A |backflow |assembly |test |report |must |be: |- |ANSWER✔✔✔-C. |Complete, |accurate |and |
legible
19) |SOV |#1 |of |a |properly |installed |PVBA |
is |reported |as |leaking |while |testing |the |air |inlet |valve |if |water |continues |to |flow |from: |- |
ANSWER✔✔✔-C. |The |high-bleed |valve |and |the |differential |gauge |does |not |drop |to |the |
opening |point |of |the |Air |Inlet |Valve
20) |The |differential |pressure |relief |valve |must |discharge |water |to |the |atmosphere |when |the |
pressure |in |the |zone |between |the |check |valves |is |with |in: |- |ANSWER✔✔✔-B. |2 |psi |of |the |
pressure |upstream |of |CV |#1
21) |The |Undesirable |reversal |of |flow |of |water |or |other |substances |through |a |cross |connection |
into |the |public |water |system |or |consumers |potible |water |system |is: |- |ANSWER✔✔✔-D. |
Backflow
22) |While |testing |CV#2 |of |an |RPBA |the |BAT |must |determine |if |CV#2 |closes |tight: |- |
ANSWER✔✔✔-D. |In |the |reverse |direction |of |flow
23) |A |DCDA |should |not |be |installed: |- |ANSWER✔✔✔-B. |Where |pressure |in |the |water |system |
is |greater |than |the |assembly's |maximum |working |water |pressure
24) |The |contents |of |the |backflow |assembly |test |report |completed |after |testing |a |backflow |
prevention |assembly |installed |at |the |water |meter |must |meet |the |requirements |of |the: |- |
ANSWER✔✔✔-D. |Water |purveyor
