WATER DISTRIBUTION GRADE 1
CERTIFICATION ADEQ PRACTICE
EXAM
What-is-the-general-definition-of-an-ion?-An-_________-with-a-positive-or-negative-
charge---ans-✔✔Atom
A-continuous-positive-pressure-in-a-distribution-system-is-essential-for-preventing-what-
event?---ans-✔✔Backflow-Event
_____________-water-pressure-must-be-maintained-to-ensure-adequate-customer-
service-during-peak-flow-periods.-However,-minimum-positive-pressure-must-be-
maintained-in-mains-to-protect-against-backflow-or-backsiphonage-from-cross-
connections.---ans-✔✔Minimum
Name-the-most-common-CAUSE-for-public-water-supply-contamination.-
_________________-or-cross-connection---ans-✔✔Backflow
What-does-a-backsiphonage-condition-usually-cause?-__________-pressure-or-negative-
pressure-on-the-service-or-supply-side.---ans-✔✔Reduced
What-does-a-double-check-valve-backflow-assembly-provide-effective-protection-from?-
Both-backpressure-and-backsiphonage-of-____________.---ans-✔✔Pollution
What-is-equipment-that-utilizes-water-for-cooling,-lubrication,-washing-or-as-a-solvent-
always-susceptible-to?---ans-✔✔Cross-Connection
What-is-the-difference-between-a-reduced-pressure-principle-backflow-device-and-a-
double-check-backflow-device?-The-RP-has-a-______________.---ans-✔✔Relief-Valve
What-is-the-maximum-time-period-between-having-a-backflow-device-tested-by-a-certified-
backflow-tester?-______________-year.---ans-✔✔1
What-is-the-regulatory-definition-of-a-cross-connection-in-a-water-supply?-A-physical-
connection-between-a-public-water-system-and-any-source-of-water-or-other-substance-
that-may-lead-to-contamination-of-the-water-provided-by-the-_____________-through-
backflow.---ans-✔✔PWS
, What-is-the-name-of-a-type-of-valve-that-reduces-the-differential-pressure-across-a-closed-
disk-making-the-main-valve-easier-to-open-and-close?---ans-✔✔Bypass-Valve
As-soon-as-Cl2-gas-enters-the-throat-area,-a-victim-will-sense-a-sudden-stricture-in-this-
area-Nature's-way-of-signaling-to-prevent-passage-of-the-gas-to-the-lungs.-At-this-point,-
the-victim-must-attempt-to-do-two-things:-get-out-of-the-area-of-the-leak,-proceeding-
upwind,-and-to-take-only-very-short-breaths-through-the-mouth.-Normal-breathing-will-
cause-__________,-which-must-be-prevented-if-possible.---ans-✔✔Coughing
Chlorine-gas-causes-suffocation,-constriction-of-the-chest,-tightness-in-the-throat,-and-
edema-of-the-______________.---ans-✔✔Lungs
_______________-available-chlorine-is-very-effective-in-killing-bacteria.---ans-✔✔Free
How-should-an-operator-store-an-empty-chlorine-cylinder?-____________,-tagged-as-
empty.---ans-✔✔Upright
If-a-chlorine-leak-occurs,-where-will-chlorine-gas-accumulate?-Near-the-____________-of-
the-tank.---ans-✔✔Bottom
What-effect-does-chlorine-gas-have-on-the-sense-of-smell?-It-produces-olfactory-
_______________.---ans-✔✔Fatigue
What-is-the-primary-safety-concern-when-using-chlorine-gas-as-opposed-to-calcium-
hypochlorite-or-sodium-hypochlorite?-The-potential-for-a-_____________-leak.---ans-
✔✔Gas
What-may-occur-due-to-chronic-exposure-to-low-concentrations-of-chlorine-gas?-Chronic-
exposure-may-cause-corrosion-of-the-_____________.---ans-✔✔Teeth
What-is-the-process-called-that-changes-water-vapor-to-tiny-droplets-or-ice-crystals?---ans-
✔✔Condensation
What-is-the-unit-of-measurement-for-sound?---ans-✔✔Decibels
What-happens-if-grease-comes-in-contact-with-the-winding-of-a-motor?---ans-✔✔The-
winding-insulation-my-deteriorate.
What-is-the-most-common-type-of-valve-used-in-isolating-a-small-or-medium-sized-section-
of-a-distribution-system?---ans-✔✔Gate
What-is-a-possible-result-of-over-greasing-a-bearing?-There-is-extreme-_____________-
in-the-bearing-chamber-causing-heat-and-scoring-of-the-shaft.---ans-✔✔Friction
CERTIFICATION ADEQ PRACTICE
EXAM
What-is-the-general-definition-of-an-ion?-An-_________-with-a-positive-or-negative-
charge---ans-✔✔Atom
A-continuous-positive-pressure-in-a-distribution-system-is-essential-for-preventing-what-
event?---ans-✔✔Backflow-Event
_____________-water-pressure-must-be-maintained-to-ensure-adequate-customer-
service-during-peak-flow-periods.-However,-minimum-positive-pressure-must-be-
maintained-in-mains-to-protect-against-backflow-or-backsiphonage-from-cross-
connections.---ans-✔✔Minimum
Name-the-most-common-CAUSE-for-public-water-supply-contamination.-
_________________-or-cross-connection---ans-✔✔Backflow
What-does-a-backsiphonage-condition-usually-cause?-__________-pressure-or-negative-
pressure-on-the-service-or-supply-side.---ans-✔✔Reduced
What-does-a-double-check-valve-backflow-assembly-provide-effective-protection-from?-
Both-backpressure-and-backsiphonage-of-____________.---ans-✔✔Pollution
What-is-equipment-that-utilizes-water-for-cooling,-lubrication,-washing-or-as-a-solvent-
always-susceptible-to?---ans-✔✔Cross-Connection
What-is-the-difference-between-a-reduced-pressure-principle-backflow-device-and-a-
double-check-backflow-device?-The-RP-has-a-______________.---ans-✔✔Relief-Valve
What-is-the-maximum-time-period-between-having-a-backflow-device-tested-by-a-certified-
backflow-tester?-______________-year.---ans-✔✔1
What-is-the-regulatory-definition-of-a-cross-connection-in-a-water-supply?-A-physical-
connection-between-a-public-water-system-and-any-source-of-water-or-other-substance-
that-may-lead-to-contamination-of-the-water-provided-by-the-_____________-through-
backflow.---ans-✔✔PWS
, What-is-the-name-of-a-type-of-valve-that-reduces-the-differential-pressure-across-a-closed-
disk-making-the-main-valve-easier-to-open-and-close?---ans-✔✔Bypass-Valve
As-soon-as-Cl2-gas-enters-the-throat-area,-a-victim-will-sense-a-sudden-stricture-in-this-
area-Nature's-way-of-signaling-to-prevent-passage-of-the-gas-to-the-lungs.-At-this-point,-
the-victim-must-attempt-to-do-two-things:-get-out-of-the-area-of-the-leak,-proceeding-
upwind,-and-to-take-only-very-short-breaths-through-the-mouth.-Normal-breathing-will-
cause-__________,-which-must-be-prevented-if-possible.---ans-✔✔Coughing
Chlorine-gas-causes-suffocation,-constriction-of-the-chest,-tightness-in-the-throat,-and-
edema-of-the-______________.---ans-✔✔Lungs
_______________-available-chlorine-is-very-effective-in-killing-bacteria.---ans-✔✔Free
How-should-an-operator-store-an-empty-chlorine-cylinder?-____________,-tagged-as-
empty.---ans-✔✔Upright
If-a-chlorine-leak-occurs,-where-will-chlorine-gas-accumulate?-Near-the-____________-of-
the-tank.---ans-✔✔Bottom
What-effect-does-chlorine-gas-have-on-the-sense-of-smell?-It-produces-olfactory-
_______________.---ans-✔✔Fatigue
What-is-the-primary-safety-concern-when-using-chlorine-gas-as-opposed-to-calcium-
hypochlorite-or-sodium-hypochlorite?-The-potential-for-a-_____________-leak.---ans-
✔✔Gas
What-may-occur-due-to-chronic-exposure-to-low-concentrations-of-chlorine-gas?-Chronic-
exposure-may-cause-corrosion-of-the-_____________.---ans-✔✔Teeth
What-is-the-process-called-that-changes-water-vapor-to-tiny-droplets-or-ice-crystals?---ans-
✔✔Condensation
What-is-the-unit-of-measurement-for-sound?---ans-✔✔Decibels
What-happens-if-grease-comes-in-contact-with-the-winding-of-a-motor?---ans-✔✔The-
winding-insulation-my-deteriorate.
What-is-the-most-common-type-of-valve-used-in-isolating-a-small-or-medium-sized-section-
of-a-distribution-system?---ans-✔✔Gate
What-is-a-possible-result-of-over-greasing-a-bearing?-There-is-extreme-_____________-
in-the-bearing-chamber-causing-heat-and-scoring-of-the-shaft.---ans-✔✔Friction
