UPC: Ch 6 Water Supply and Distribution

The code requirement for "an adequate supply of potable running water" is for ________.

a. cleansing and sanitation

b. protection of trap seals

c. water-cooled equipment

d. hydronic systems

A

The primary reason for installing backflow prevention assemblies is to ________________.

a. prevent excessive pressure

b. prevent mixing of hot and cold water

c. prevent pollution or contamination of the potable water supply

d. prevent scalding

C

Ballcocks in water closet tanks shall be installed so that the critical level of the water inlet is

above the full opening of the overflow pipe at least ____________________.

a. 1/2 inch

b. 1 inch

c. 3 inches

d. 6 inches

B

__________________ is the minimum height of the atmospheric vacuum breaker critical level above the highest part of a urinal equipped with a flushometer valve.

a. 1 inch

b. 3 inches

c. 6 inches

d. 12 inches

C

__________________ is the minimum height of the atmospheric vacuum breaker critical level above the overflow rim of a tank, vat or swimming pool.

a. 1 inch

b. 2 nches

c. 6 inches

d. 12 inches

C

__________________ is the minimum height of the atmospheric vacuum breaker critical level above all downstream piping for lawn sprinkler system.

a. 1 inch

b. 12 inches

c. 6 inches

d. 24 inches

B

PEX tubing shall not be installed within the first ______________ of piping connected to a water heater.

a. 12 inches

b. 18 inches

c. 24 inches

d. 36 inches

B

Each outlet on a non-potable water system that is used for special purposes shall be posted

___________________.

a. DANGER — PROCESSED WATER

b. DANGER — CONTAMINATED WATER

c. DANGER — POLLUTED WATER

d. CAUTION — NON-POTABLE WATER DO NOT DRINK

D

The piping materia|(s) not approved in the cold water piping located inside a building is _______________.

a. PVC

b. PE

c. asbestos cement

d. all of the above

D

All malleable iron water fittings shall be _________________.

a. 2 inch or smaller

b. galvanized

c. flanged

d. removed

B

Water valves 2—1/2 inches and larger may have bodies that are ________________.

a. galvanized

b. die-cast

c. aluminum core

d. cast iron

D

Changes in direction of copper tubing may be made with __________________.

a. non-deforming bending equipment

b. metallic fittings

c. heat annealing

d. plastic fittings

A

Water piping systems shall be designed on the basis of the _________________.

a. maximum pressure

b. minimum pressure

c. average residual pressure

d. average service pressure

B

Copper water tube Type "M" may be installed within a building _________________.

a. below slab only

b. above ground only

c. for cold water only

d. if it is wrapped

B

Immediately ahead of each water-supplied appliance and each slip joint or appliance supply

is required a _________________.

a. control valve

b. check valve

c. backwater valve

d. solenoid valve

A

After allowing for friction and other pressure losses, the residual water pressure shall be at

least ________________.

a. .433 psi

b. 7.5 psi

c. 15 psi

d. 29 psi

C

A water piping system with a pressure of 110 psi will require a(an) ______________.

a. reduced pressure backflow device

b. extra-heavy pipe and fittings

c. pressure regulator and strainer

d. pressure-relief valve

C

Any water heater connected to a separate storage tank and having valves between the

heater and tank shall be provided with a _____________________.

a. fullway valve

b. fullway gate valve

c. water pressure regulator

d. water pressure-relief valve

D

Combination temperature and pressure relief valves shall be installed _____________.

a. based on their listing requirements and the manufacturer's instructions

b. within 3 inches to 6 inches of the water heater

c. in lieu of pressure-relief valves

d. on all nonstorage-type water heaters

A

Galvanized steel piping installed under a concrete floor slab within a building shall _______________.

a. have a machine-applied coating

b. have a spiral wrap

c. be installed without joints

d. be installed with brazed joints

A

Cast-iron fittings, up to and including two inches in size, when used in connection with potable

water piping, shall be __________________.

a. extra heavy

b. flanged

c. disallowed

d. galvanized

D

Water piping may be installed in the same trench with less than 12 inches of separation from

a building sewer constructed of __________________.

a. cast iron

b. clay

c. asbestos cement

d. bituminized fiber

A

The available pressure at the water meter is 80 psi. At the highest supply outlet, 36 feet above

the water meter, the pressure would be _____________ psi when sizing a water system according to Chapter 6.

a. 62

b. 44

c. 116

d. 80

A

Building supplies shall be no smaller than that required for the installation and, in no case,

smaller than ________________ inch(es).

a. 1/2

b. 3/4

c. 1

d. 2

B

Copper tubing used for water piping under a concrete slab within a building shall be __________________.

a. installed with brazed joints with cast brass fittings

b. protected with a factory-applied coating

c. installed without joints where possible

d. installed with Type K copper tube with brazed joints

C

CPVC water pipe may be used for hot and cold water distribution systems _______________________.

a. in residences only

b. within a building

c. below ground only

d. above ground only

Copper or stainless steel flexible connectors for water heater connectors shall be limited to _____________________.

a. 12 inches

b. 18 inches

c. 24 inches

d. 36 inches

C

Unions shall be installed in a water supply system within 12 inches of ____________.

a. water heating tanks

b. conditioning tanks

c. regulating equipment

d. all of the above

D

The type of valve required on a building supply to any building is a _________________.

a. fullway valve

b. corporation valve

c. butterfly valve

d. globe valve

A

All backflow devices or assemblies shall be tested by a ___________________.

a. licensed agent

b. representative from the Authority Having Jurisdiction

c. certified backflow assembly tester

d. third-party certified agency

C

Other than systems sized by the use of Table 610.4, the maximum velocity of a cold water

system containing copper and copper alloy tube and fittings shall be limited to _________.

a. 5 feet per second

b. 8 feet per second

c. 10 feet per second

d. 15 feet per second

B

Discharge piping serving a pressure-relief shall be provided with a ____________.

a. full size drain extended to outside

b. check valve to prevent backflow

c. trapped drain line

d. drain that terminates 30 inches or more above grade

A

The quantity of water required to be supplied to every plumbing fixture shall be represented

by __________________.

a. gallons per minute

b. feet per second

c. fixture units

d. available head pressure

C

The size and material of irrigation water piping installed outside of any building and

separated from the potable water supply by means of an approved backflow prevention device is _________________________.

a. regulated by code

b. not regulated by code

c. regulated by the National Sanitation Foundation

d. regulated by the American Society of Sanitary Engineers

B

Hard-drawn copper tubing, marked with a blue stripe, is referred to as ___________.

a. Type K

b. Type L

c. Type M

d. Type DWV

B

The color stripe on Type "K" hard-drawn copper tubing is ____________________.

a. green

b. blue

c. red

d. yellow

A

Flaring tools are used to make joints for ______________.

a. hard Type K copper tubing

b. soft copper water tubing

c. yellow brass water piping

d. aluminum water piping

B

The distance between a water heater and the union on the water lines shall not be more than

__________________ inches.

a. 6

b. 12

c. 18

d. 24

B

Whenever fixtures and/or fixture fittings are installed that require a residual water pressure

higher than 15 pounds per square inch _____________.

a. that minimum pressure shall be provided

b. provisions shall be made to use fixtures that do not require higher residual pressure

c. the piping system shall be not less than copper tubing Type L

d. A and C apply

A

Except for plastic piping, water piping systems shall be permitted to be tested with ________________.

a. 10 psi air pressure

b. 50 psi air pressure

c. 10 psi C02

d. 60 psi C02

B

The duration for a water system pressure test shall be for a period of not less than _________________ minutes.

a. 5

b. 10

c. 15

d. 30

C

In occupancies where plumbing fixtures are installed for ___________, hot water shall be required for bathing, washing, laundry, cooking and similar purposes.

a. public use

b. commercial use

c. private use

d. daycare facilities

C

Except as required in Sections 1602.1 and 1603.1, nonpotable water systems shall have a _________ with black uppercase lettering, with the words "CAUTION: NONPOTABLE WATER, DO NOT DRINK."

a. white background

b. blue background

c. green background

d. yellow background

D

Plastic materials for __________________ piping outside underground shall have a blue insulated copper tracer wire or other approved conductor installed adjacent to the piping.

a. building supply

b. well

c. irrigation

d. hose bib

A

Any water system that prevents dissipation of building pressure back into the water main shall

be provided with an approved, listed, and adequately sized _________________ or other approved device.

a. double-check valve

b. expansion tank

c. temperature & pressure relief valve

d. PRV

B

Pipe joint material shall be insoluble in water, nontoxic, and applied ________________.

a. on male threads only

b. on pipe threads and inside fittings

c. on inside fitting threads only

d. in warm weather only

A

Surfaces to be joined by soldering or brazing shall be cleaned bright by ____________.

a. mechanical or manual means

b. a self-cleaning flux

c. a corrosive flux

d. sulfuric acid

A

Solder and fluxes used in piping systems conveying potable water are prohibited when the

lead content exceeds ___________.

a. 0.2 of 1 percent

b. 0.5 of 1 percent

c. 1 percent

d. less than 10 percent

A

The minimum wall thickness for threaded plastic pipe (not molded fittings) shall be ________________.

a. Schedule 40

b. Schedule 80

c. 1/8 inch

d. 1/16 inch

B

When brazing, the alloys shall have a liquid temperature above _____________ degrees F.

a. 800

b. 840

c. 1000

d. 1200

C

A push-fit fitting is ________________.

a. assembled using excessive force

b. assembled by pushing tube/pipe into the fitting and is sealed with an "O" ring that forms the joint

c. prohibited by Code

d. permitted to be installed in accessible locations only

B

Heat-fusion weld joints ______________________.

a. are used in some thermoplastic systems

b. are low-temperature, metallic pipe welds

c. require prior approval of an Authority Having Jurisdiction

d. may be used in drainage systems but not pressure systems

A

____________________ systems shall be clearly identified, have a purple background with uppercase yellow lettering.

a. Gray water

b. Reclaimed (recycled) water

c. Rainwater catchment

d. None of those listed

D

The area of coverage of a single fire sprinkler shall not exceed _________________.

a. 100 square feet

b. 200 square feet

c. 300 square feet

d. 400 square feet

D

What size drain for the fire sprinkler system shall be provided on the system side of the

water distribution shut off valve? _______________

a. 1/2 inch

b. 3/4 inch

c. 1 inch

d. 1-1/2 inch

A

Non metallic pipe and tubing for fire sprinklers shall be protected from exposure to the

occupied space by a material having a minimum fire rating of ______________ minutes.

a. 15

b. 30

c. 45

d. 60

A

In locations where intermediate temperature sprinklers are required, the minimum distance

from a kitchen range top (heat source) is ______________________.

a. 6 inches

b. 9 inches

c. 18 inches

d. 24 inches

B

In locations where intermediate temperature sprinklers are required, the minimum distance

from a kitchen range top (heat source) is ______________________.

a. 6 inches

b. 9 inches

c. 18 inches

d. 24 inches

B

The sprinkler pipe size from the water supply source to a sprinkler shall not be less than _______________________ inch.

a. 3/8

b. 1/2

c. 3/4

d. 1

C

What is the minimum temperature rating of intermediate temperature fire sprinklers when

installed in attics and concealed spaces directly beneath a roof? _________________

a. 135° F

b. 170° F

c. 175° F

d. 225° F

C

The water distribution size of the fire sprinkler system in a single family home has been

determined to be 1 inch. The available pressure at the service is 55psi. The water meter listing

specifies a flow rate of 14 gpm. With a water service developed length of 38 feet, the available psi for fire sprinklers is _______________________.

a. 49.8

b. 50.8

c. 51.8

d. 55.0

A

The minimum water test time for a fire sprinkler system is ______________ minutes.

a. 15

b. 30

c. 60

d. 120

A

Nonmetallic fire sprinkler pipe shall be certified for residential sprinkler installations and shall

have a pressure rating of not less than __________ psi at 120° F.

a. 100

b. 120

c. 130

d. 150

C

The water supply for a one story dwelling unit of 1785 square feet shall have the capacity to

provide the required flow rate to the sprinklers for a period of ___________ minutes.

a. 5

b. 7

c. 10

d. 15

B