BUILDING WATER SUPPLY SYSTEM AND DESIGN Flashcards

1
Q

____________ require that a potable water
supply be adequately furnished to all
plumbing fixtures.

A

Plumbing codes

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2
Q

carries
cold and hot water through distribution
pipes and delivers it to the plumbing fixtures.

A

water supply system

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3
Q

Also known as water service, which is a

large water supply pipe that carries potable
water or other water source from the

district or city water system to the building.

A

BUILDING SUPPLY

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4
Q

Required by most district water supply

systems to measure and record the amount

of water used.

A

WATER METER

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5
Q

A large pipe, serving as the principal artery
of the water supply system. It carries water

through the building to the furthest riser.

A

BUILDING MAIN

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6
Q

A water supply pipe that extends vertically

in the building at least one story and carries
water to fixture branches.

A

RISER

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7
Q

A water supply pipe that runs from the riser
or main to the fixture being connected. It is
any part of a piping system other than a

riser or main pipe.

A

FIXTURE BRANCH

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8
Q

It runs from the fixture branch to the fixture,

the terminal point of use in a plumbing
system. A shut-off valve is typically located

in the hot and cold water supply at the
fixture connection.

A

FIXTURE CONNECTION

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9
Q

Hot and cold pipes should be spaced at least ___ in
(____ mm) apart or have insulation placed between
them to prevent heat interchange.

A

6 in
(150 mm)

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10
Q

A branch supplying water to two or more fixtures is
called a____

A

zone.

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11
Q

Fixtures are typically
located in clusters called _______.

A

groups

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12
Q

There are times when the width of a wall needs to be
increased to allow for pipes running horizontally to
pass by drainage pipes (or other pipes) running
vertically. These walls of increased thickness are
called______________.

A

plumbing walls

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13
Q

it is where Hot and cold water distribution pipes are installed
parallel to one another, conveying hot and cold water
to risers and branch pipes. Running pipes parallel with
building walls and floors arrange pipes in an
organized manner.

A

RIGID-PIPE DISTRIBUTION CONFIGURATION

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14
Q

This system consists of a plastic or metal plumbing
manifold and flexible plastic piping. The manifold
serves as a common location from which all the
plumbing fixtures are supplied.

A

HOMERUN (MANIFOLD) DISTRIBUTION CONFIGURATION

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15
Q

Manifolds have two separate chambers: the ____________
water chamber is supplied from the main water supply
line and the ________ water chamber is fed from the water
heater.

A

cold
water chamber is supplied from the main water supply
line and the hot water chamber is fed from the water
heater.

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16
Q

Water pressure from the water supply main is relied on
to drive water flow through the system.

A

UPFEED AND DOWNFEED DISTRIBUTION

17
Q

plays a vital role in the
development and functioning of systems that deal
with fluid movement, like plumbing, heating, cooling,
and hydraulic systems.

A

Water pressure

18
Q

When the forces acting on a fluid are uneven, the molecules within
the fluid move in the direction of the _________

A

net force.

19
Q

is a
force exerted by the
weight of the fluid
against the walls of a
vessel containing the
fluid

A

HYDROSTATIC FORCE

20
Q

IS
THE FORCE EXERTED
BY WATER IN A
PLUMBING SYSTEM.

A

WATER
PRESSURE

21
Q

IN PLUMBING WATER
SUPPLY PIPING, THE
MAXIMUM WATER
VELOCITY IS TYPICALLY
RESTRICTED TO __TO __
F/S (__TO__ M/S)

A

5 TO 10
F/S (1.5 TO 3 M/S)

22
Q

MAXIMUM SAFE
VELOCITY FOR
THERMOPLASTIC PIPE IS
ABOUT__ FT/S (___M/S)

A

5 FT/S (1.5 M/S)

23
Q

THIS HAPPENS WHEN A
LIQUID UNDERGOES A
SHARP DROP IN
PRESSURE, CAUSING
THE LIQUID TO
VAPORIZE INTO TINY
VAPOR BUBBLES

A

CAVITATION

24
Q

the vertical distance through
open air between an opening in a
faucet conveying potable water
to the flood level rim of a tank

25
IT IS WATER FLOWING IN THE OPPOSITE DIRECTION FROM NORMAL FLOW
BACKFLOW
26
backflow caused by a negative pressure (vacuum) in a potable water system
BACKPRESSURE OR BACK SIPHONING
27
caused by a down stream pressure that is greater than the supply pressure
BACKPRESSURE BACKFLOW
28
caused by a down stream pressure that is greater than the supply pressure
ATMOSPHERIC VACUUM BREAKER (AVB)
29
a device or plumbing assembly that when properly installed in a plumbing system prevents backflow
VACUUM BREAKER
30
contains a spring loaded poppet, must be installed on the main line leading to the control valves
PRESSURE VACUUM BREAKER (PVB)
31
consists of two check valves assembled in series usually with a ball valve or gate valve installed at each end for isolation and testing
DOUBLE CHECK ASSEMBLY (DCA
32
LARGE INCREASE IN PRESSURE RESULTED BY THE SUDDEN CLOSING OF A VALVE THAT CAUSED FAST-FLOWING WATER TO STOP QUICKLY
WATER HAMMER
33
EXPANSION FROM TEMPERATURE INCREASES CAN PUSH A PIPE THROUGH A WALL OR CAUSE IT TO BURST
THERMAL EXPANSION
34
consists a slip pipe and a flange, which is bolted to an adjoining pipe
SLIP EXPANSION JOINT
35
able to absorb a certain amount of end movement of the pipe
CORRUGATED EXPANSION JOINT
36
APPLIED TO THE OUTER WALLS OF PIPING TO REDUCE HEAT LOSS OR PREVENT CONDENSATION ON THE OUTSIDE PIPE WALLS
PIPE INSULATION
37
refers to the total amount of water required for a specific purpose or area over a given period, influenced by factors such as population, fixture usage, climate, and time of day
WATER DEMANd
38
developed by Dr. Roy Hunter, is used to estimate the design load of plumbing systems by assigning water supply fixture unit (WSFU) values to different fixtures based on their flow rates
fixture unit method,
39
can be used to establish meter and distribution pipe size based on the total demand
WSFU DESIGN TABLE METHOD