TESTER EXAM FINAL COMPREHENSIVE
ASSESSMENT TEST PAPER QUESTIONS AND
SOLUTIONS
⩥ A valve designed to open in the direction of normal flow and close
with the reversal of flow..
Answer: Check valve
⩥ Overflow level.
Answer: The maximum height that water or liquid will rise in a
receptacle before it flows over the rim.
⩥ Backflow.
Answer: A hydraulic condition, caused by a difference in pressures, in
which non-potable water or other fluids flow into a potable water
system.
⩥ RPBP.
Answer: A shortened name for a reduced pressure backflow preventer
⩥ Air Gap.
,Answer: In plumbing, the unobstructed vertical distance through the free
atmosphere between the lowest opening from any pipe or outlet
supplying water to a tank, plumbing fixture, or other container, and the
overflow rim of that container
⩥ potential cross connection.
Answer: Any arrangements of pipes, fittings, or devices that indirectly
connects a potable water supply to a non-potable source
⩥ Dysentery.
Answer: A disease (sometime waterborne) caused by pathogenic
microorganisms and characterized by severe diarrhea with passage of
mucus and blood
⩥ Backsiphonage.
Answer: A backflow condition in which the pressure in the distribution
system is less than atmospheric pressure (subatmospheric)
⩥ Hose bib.
Answer: A faucet to which a hose may be attached
⩥ Carrier.
Answer: A human or animal that carries germs and can pass them to
another person without getting the disease himself.
, ⩥ Reduced pressure zone backflow preventer.
Answer: A mechanical device consisting of two independnetly operating,
spring-loaded check valves with a reduced pressure zone between check
valves.
⩥ Auxiliary supply.
Answer: Any water source or system, other than the potable water
supply, that may be available in the building or premesis.
⩥ Actual Cross Connection.
Answer: Any arrangement of pipes, fittings, that connects a potable
water supply directly to a non-potable source at all times.
⩥ Hepatitis.
Answer: An inflammation of the liver caused by a pathogenic virus.
Symptoms are jaundice, general weakness, nausea, and the presence of
dark urine.
⩥ Feed water.
Answer: Water that is added to a commercial or industrial system and
subsequently used by the system, such as water that is fed to a boiler to
produce steam.