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WorksheetsWater systems Week 7
Total questions: 26
Worksheet time: 13mins
What does DWV mean?
distribution waste valve
distribution water valve
drain, waste, vent
drain, water, ventilate
Why is ABS piping used in the RV industry?
it resists impact in cold temperature
it can be easily identified because of its green color
it holds up during travel conditions
it is cheaper to install
An RV water distribution system needs
a means of providing pressure
off-board water tanks
a source of hard water
at least 5 potable water connections
If a customer complains of lukewarm water at one or more hot faucets
a bypass valve might be partially open or failed
a check valve might be malfunctioning or broken
there might be a problem with the shutoff valve
the propane supply to the heater is inadequate
Sealants used when building city water test kits should
be for potable water
be for non-potable water
have UV resistance
have the longest lifespan
What sealant is most appropriate to use when assembling a city water test kit?
thread
acrylic resin
butyl rubber
epoxy
Which step is part of a freshwater system inspection?
conduct a water system leak test
use three grades of antifreeze
disconnect hot and cold water lines
perform a 3 minute drop test
When inspecting a freshwater system, make sure it functions properly on
pump and city water hookup
pump only
city water hookup only
external pump
How long do demand system and air pressure tests last?
2 minutes
5 minutes
10 minutes
20 minutes
NFPA 1192 paragraph 7.3.7.5 requires potable water tanks to be _____, _____, and _____ before use.
sanitized, flushed, drained
sanitized, cleaned, flushed
winterized, drained, flushed
What is the main purpose of opening the faucets until the water runs clear?
let air into the system
let antifreeze out of the system
verify hard water does not exist
verify that exterior fixtures flush
When de-winterizing what is the purpose of opening the faucet in the coach?
let air into the system
drain the fresh water tank
open low point drain valves
allow antifreeze into the system
Choose from _____ grades of antifreeze that are suitable for the _____ when winterizing.
2; temperature
4; temperature
2; pressure
4; pressure
During winterization of an entire RV water system, all water is
replaced with antifreeze to prevent freezing
irrigated so that the RV will function in humidity
flushed for maintenance purposes when the RV is inhabited
sanitized before it is declared suitable for use
What does the liquid waste holding tank contain, and what does the body waste holding tank contain?
gray water; solid waste water
black water; gray water
toilet waste; shower waste
body waste; faucet waste
An anti-siphon trap device can be substituted for a
secondary vent
faucet fixture
trap
holding tank
When an RV is equipped with a liquid waste holding system, a _____ test should be performed for 15 minutes during a fixture flood test.
static water
leak
operating
lockup pressure
When conducting PDI of a waste water system, conduct a flow test _____ a flood test.
before
after
alongside
without
What is measured in the picture?
main drain termination area
shower area
bathroom area
minimum holding tank area
When winterizing the waste system, what is the purpose of pouring another cup of antifreeze down the drain at the kitchen, lavatory sink, and shower/tub drains?
to check if the fresh water tank has antifreeze
to determine if there is air in the water line
to check if the p-traps have antifreeze
to stabilize the lines for movement
After flushing and cleaning holding tanks during winterization, drain each tank and
close termination valves
pour antifreeze in them
flush once more
empty and fill them
Sewage waste water holding tanks can receive discharge from
any number of RV fixtures
one RV fixture only
two RV fixtures only
no less than 5 RV fixtures
Which test requires the entire drainage system, including holding tanks, to be filled until water appears at the bottom of the lowest fixture on each system?
fixture flood test
flow test
air pressure test
demand system test
What is checked last during a flow test?
leaks
pressure
air flow
temperature
When conducting a fixture flow and flood test what is the first step?
Fill all the fixtures
inspect for leaks
Level the RV
Insert drain plug
According to the RV standards the termination drain outlet must be located on the_______ side of the rv within ___ feet of the rear of the RV.
Right / 18 inches
Left / 18 Inches
Right / 22.5 feet
Left / 22.5 ft
