Rec-101 Water Systems Level 1 Module 1

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

• winterized, sanitized, flushed