Plumbing

Question 1

What does MEP stand for?

Answer 1

Mechanical, electrical, plumbing

Question 2

Two plumbing codes

Answer 2

IPC and UPC (uniform plumbing code)

Question 3

used to indicate that a line is lying below, can be detectable or non-detectable; buried 10”-36” deep; red- yellow- orange- blue- purple- green-

Answer 3

Underground marking tape; power; gas; communication; potable water; irrigation (may change); sewer

Question 4

Drinking supply; also supply that goes to all fixtures in a building; Needs separate trenches- at least 5’ from sewer

Answer 4

Potable water

Question 5

Three basic purposes of plumbing

Answer 5

Get water out where you don’t want it; get water where you do want it; remove wastewater after its used

Question 6

What does DWV stand for?

Answer 6

Drains, waste, and venting

Question 7

Cold water =; hot water =

Answer 7

Waters supply; water supply after going through the water heater

Question 8

Piping material for DWV

Answer 8

ABS or PVC

Question 9

Hot and cold water distribution

Answer 9

PEX

Question 10

piping material that is strong, corrosion-resistant, leak-proof, nonabsorbent, easily cut and joined, no-hub above ground and bell-and-spigot below ground, noise reducing

Answer 10

Cast iron

Question 11

Plastic piping material that is more thermo resistant, used for underground exterior, susceptible to UV light, doesn’t need priming

Answer 11

ABS

Question 12

Plastic piping material that is more heat resistant, joined by solvent cementing, has high pressure rating, orange, usually for fire sprinklers- more in residential than comercial

Answer 12

CPVC

Question 13

Piping material that is used normally in construction industry for supply of water and as a refrigerant line in HVAC systems; can’t touch metal- will corrode; type DWV; type M, type L, type K

Answer 13

Copper

Question 14

Thinnest type of copper piping used for… ; yellow

Answer 14

Type DWV

Question 15

Plastic piping material used for sanitary sewers and vent piping; above and below ground storm drainage; joined by solvent cementing;
Used for most DWV

Answer 15

PVC

Question 16

Safest plastic piping material for water distribution; not very common; comes in coils; corrosion resistant; high temperature and high pressure resistant; hot and cold water distribution; used in storm sewers

Answer 16

PEX

Question 17

Consists of waste pipes, soil pipes, vent piping; does NOT connect to storm because it can contaminate water

Answer 17

Sanitary sewer

Question 18

Roof drains and piping, gutter and downspouts, parking lots and streets; “gray water”-may be used for sprinklers

Answer 18

Storm sewer

Question 19

Piping material that can be used to water distribution, sanitary waste and storm water drainage, but mainly for gas systems; durable but very heavy; coated with zinc are called galvanized pipe and are corrosion-resistant- if not galvanized, rusts

Answer 19

Steel

Question 20

Device that measures the consumed amount of water in cubic feet or gallon

Answer 20

Water meters

Question 21

A device that regulates the flow of water; shut off- turns it on or off, doesn’t adjust water flow; modulating/regulating- monitors how much water is flowing through

Answer 21

Valve

Question 22

Types of drain lines

Answer 22

Sanitary sewer and storm sewer

Question 23

Required by every fixture connected to sanitary sewer to keep sanitary gasses out of building; can be integral or external

Answer 23

Trap

Question 24

A pipe that is used as a drain and a vent; only allowed over short distances; will need to be one pipe size bigger than the drain required for the fixture above the vent

Answer 24

Wet vent

Question 25

Three major factors determine the size of DWV system

Answer 25

Slope of pipes; DFU they serve; size of the largest fixture trap

Question 26

Slope of pipes: Less than 3” needs __ per ft 3”-6” needs __ per ft 8” or greater needs __ per ft

Answer 26

1/4; ;

Question 27

Factors to determine size of storm drains

Answer 27

No venting and no traps…

Question 28

water supplied to a home or building from a private well or public municipality used to supple water to plumbing fixtures (water tower); must be potable (drinking water); non-potable water needs to be marked; most fixtures require a minimum branch size of 1/2”

Answer 28

Domestic water

Question 29

Quick-acting valves …

Answer 29

Water hammer

Question 30

All hot water lines and roof drains need to be

Answer 30

Insulated- hot water lines- ; roof drains- prevent condensation

Question 31

all piping is tested for _____, _____ it is covered; underground piping is tested and inspected ______ to being _________

Answer 31

Leaks; before; prior; backfilled

Question 32

Test where pipes must hold 10’ of head pressure for 15 min

Answer 32

Water test