Plumbing 4th Importance

Question 1

The__________________is required to maintain
sanitary and safe operation conditions in plumbing and drainage systems that are under the jurisdiction of the Authority Having Jurisdiction.

Answer 1

The owner or the owner’s designated agent shall be responsible for maintenance of plumbing systems. To determine compliance with this subsection, the Authority Having Jurisdiction shall be permitted to cause a plumbing system to be reinspected.

Question 2

Ice makers and storage chests must be located in supervised areas such as nurses stations to prevent:

Answer 2

Contamination

Ice makers or ice storage containers shall be located in nursing stations or similarly supervised areas to minimize potential contamination.

Question 3

A bed pan steamer’s indirect waste pipe must have a trap seal of at least:

Answer 3

3 inches

A trap having a seal of not less than 3 inches (76 mm) shall be provided in the indirect waste pipe for a bedpan steamer.

Question 4

An appendix referenced in this code shall not apply unless the appendix is specifically:

Answer 4

Adopted

The provisions in the appendices are intended to supplement the requirements of this code and shall not be considered part of this code unless formally adopted as such.

Question 5

True or False: There is a preference in the code between gravity grease interceptors, hydromechanical interceptors, and engineered systems.

Answer 5

FalseA combination of hydromechanical, gravity grease interceptors, and engineered systems shall be allowed in order to meet this code and other applicable requirements of the Authority Having Jurisdiction where space or existing physical constraints of existing buildings necessitate such installations. A grease interceptor shall not be required for individual dwelling units or for private living quarters. Water closets, urinals, and other plumbing fixtures conveying human waste shall not drain into or through the grease interceptor.

Question 6

Brazing alloys for nonferrous pipe for fuel gas may not be more than_____________phosphorus.

Answer 6

0.05 percent

Pipe joints shall be threaded, flanged, brazed, welded, or press-connect fittings that comply with CSA LC-4. Where nonferrous pipe is brazed, the brazing materials shall have a melting point in excess of 1000°F (538°C). Brazing alloys shall not contain more than 0.05 percent phosphorus. [NFPA 54:5.6.8.1]
(NFPA 54: National Fuel Gas Code)

Question 7

Field wrapping shall provide equivalent protection and is restricted to those fittings and short sections where the factory wrap has necessarily:

Answer 7

Stripped

(1) Ferrous piping shall have a protective coating of an approved type, machine applied and in accordance with recognized standards. Field wrapping shall provide equivalent protection and shall be restricted to those short sections and fittings necessarily stripped for threading. Zinc coating (galvanizing)shall not be deemed adequate protection for piping or fittings. Approved nonferrous piping shall not be required to be wrapped.

Question 8

Drinking fountains shall_________ be installed in public toilet rooms.

Answer 8

Not

Drinking fountains shall not be installed in toilet rooms.

Question 9

_____________is the force exerted by a homogeneous liquid or gas, per unit of area, on the wall of the container.

Answer 9

Pressure

The normal force exerted by a homogenous liquid or gas, per unit of area, on the wall of the container. Residual Pressure. The pressure available at the fixture or water outlet after allowance is made for pressure drop due to friction loss, head, meter, and other losses in the system during maximum demand periods. Static Pressure. The pressure existing without any flow.

Question 10

Where sleeves are used the outside annular space between the sleeve and the fire-resistance-rated assembly:

Answer 10

Shall be firestopped in accordance with this chapter.

Where sleeves are used, the sleeves shall be securely fastened to the fire-resistance-rated assembly. The (inside) annular space between the sleeve and the penetrating item and the (outside) annular space between the sleeve and the fire-resistance-rated assembly shall be firestopped in accordance with this chapter.

Question 11

Systems must have an F rating of not less than
but no less than________________the required
fire resistance rating of the assembly being penetrated.

Answer 11

1 hour

Systems shall have an F rating of not less than 1 hour but not less than the required fire resistance rating of the assembly being penetrated.

Question 12

All piping, fixtures, appliances, and appurtenances shall be___________supported in accordance with this Code.

Answer 12

Adequately

Piping, fixtures, appliances, and appurtenances shall be supported in accordance with this code, the manufacturer’s installation instructions, and in accordance with the Authority Having Jurisdiction.

Question 13

A Type B-W gas vent shall terminate at least ____________feet in vertical height above the
bottom of the wall furnace.

Answer 13

12 feet

A Type B-W gas vent shall terminate at least 12 feet (3658 mm) in vertical height above the bottom of the wall furnace. [NFPA
54:12.7.2(3)]
(NFPA 54: National Fuel Gas Code)

Question 14

A trap arm may change direction without the use of a cleanout when such change of direction does not exceed___________degrees.

Answer 14

90 degrees

A trap arm shall be permitted to change direction without the use of a cleanout where such change of direction does not exceed 90 degrees (1.57 rad). Horizontal changes in direction of trap arms shall be in accordance with Section 706.3. Exception: For trap arms, 3 inches (80 mm) in diameter and larger, the change of direction shall not exceed 135 degrees (2.36 rad) without the use of a cleanout.

Question 15

Water Closet and Urinal Tanks shall be equipped with a listed__________.

Answer 15

Ballcock

Water closet and urinal tanks shall be equipped with a ballcock. The ballcock shall be installed with the critical level not less than1 inch (25.4 mm) above the full opening of the overflow pipe. In cases where the ballcock has no hush tube, the bottom of the water supply inlet shall be installed 1 inch (25.4 mm) above the full opening of the overflow pipe.

Question 16

All showers shall be equipped with approved
_____________having an approved waterway.

Answer 16

Strainers

Showers shall have a waste outlet and fixture tailpiece not less than 2 inches (50 mm) in diameter. Fixture tailpieces shall be constructed from the materials specified in Section 701.2 for drainage piping. Strainers serving shower drains shall have a waterway at least equivalent to the area of the tailpiece.
(2018 UPC - 701.2 Drainage Piping.)

Question 17

For rainwater supplied to drip irrigation systems, trap primers, urinals, and water closets, a filter allowing particulates up to _____________microns must be provided.

Answer 17

100

A filter permitting the passage of particulates not larger than 100microns (100 um) shall be provided for rainwater supplied to water closets, urinals, trap primers, and drip irrigation system.

Question 18

Where the occupant creates surface water drainage, the sumps, gratings or floor drains shall be piped to a storm drain or an approved water__________.

Answer 18

Course

Where the occupant creates surface water drainage, the sumps, gratings, or floor drains shall be piped to a storm drainage or an approved water course.

Question 19

It shall be unlawful for any person to permit the disposal of sewage, except through and by means of an approved________________?

Answer 19

Drainage system

It shall be unlawful for a person to cause, suffer, or permit the disposal of sewage, human excrement, or other liquid wastes, in a place or manner, except through and by means of an approved drainage system, installed and maintained in accordance with the provisions of this code.

Question 20

A grease trap is not________________for individual dwelling units or for any private living quarters.

Answer 20

Required

A combination of hydromechanical, gravity grease interceptors, and engineered systems shall be allowed in order to meet this code and other applicable requirements of the Authority Having Jurisdiction where space or existing physical constraints of existing buildings necessitate such installations. A grease interceptor shall not be required for individual dwelling units or for private living quarters. Water closets, urinals, and other plumbing fixtures conveying human waste shall not drain into or through the grease interceptor.

Question 21

True or False: Water distribution pipe and building supply water pipe and fittings can be made of copper alloy.

Answer 21

True

Pipe, tube, fittings, solvent cement, thread sealants, solders, and flux used in potable water systems intended to supply drinking water shall comply with NSF 61. Where fittings and valves are made from copper alloys containing more than 15 percent zinc by weight and are used in plastic piping systems, they shall be resistant to dezincification and stress corrosion cracking in compliance with NSF 14.
Materials used in the water supply system, except valves and similar devices, shall be of a like material, except where otherwise approved by the Authority Having Jurisdiction.
Materials for building water piping and building supply piping shall comply with the applicable standards referenced in Table 604.1.

Question 22

What must be included by the Authority
Having Jurisdiction as part of the condition of satisfactory compliance with this chapter?

Answer 22

Destructive inspection

The Authority Having Jurisdiction shall conduct a thorough examination of sufficient representative installations, including destructive inspection, to provide verification of satisfactory compliance with this chapter, the appropriate manufacturer’s installation instructions applied by the installer, construction documents, specifications, and applicable manufacturer’s product information.

Question 23

Chapter 16 provisions apply to the alteration, construction, installation, and repair of___________rainwater catchment systems.

Answer 23

Nonpotable

The provisions of this chapter shall apply to the installation, construction, alteration, and repair of nonpotable rainwater catchment systems.

Question 24

An aspirator that is water-operated may only be installed when approval is given by:

Answer 24

Authority having jurisdiction

Provisions for aspirators or other water-supplied suction devices shall be installed with the specific approval of the Authority Having
Jurisdiction.

Question 25

When should plumbing systems be located above the design flood elevation?

Answer 25

Unless designed to keep water out of components

Exception: Plumbing systems shall be permitted to be located below the elevation in accordance with the building code for utilities and attendant equipment or the elevation of the lowest floor, whichever is higher, provided that the systems are designed and installed to prevent water from entering or accumulating within their components and the systems are constructed to resist hydrostatic and hydrodynamic loads and stresses, including the effects of buoyancy, during the occurrence of flooding to such elevation.

Question 26

A person registered or licensed to design plumbing systems is not required to design rainwater catchment systems for irrigation with a maximum storage capacity of:

Answer 26

360 gallons

Exceptions: (1) A person registered or licensed to perform plumbing design work is not required to design rainwater catchment systems used for irrigation with a maximum storage capacity of 360 gallons
(1363 L).

Question 27

Inspect and clear debris from rainwater gutters, downspouts and roof washers of alternate water source every:

Answer 27

6 months.

Rainwater catchment systems and components shall be inspected and maintained in accordance with Table 1601.5 unless more frequent inspection and maintenance are required by the manufacturer.

Question 28

No treatment is required for rainwater used for aboveground irrigation where the maximum storage volume is less than:

Answer 28

360 gallons

Exceptions: (1) Water treatment is not required for rainwater catchment systems used for aboveground irrigation with a maximum storage capacity of 360 gallons (1363 L).

Question 29

What standards are F and T ratings tested in accordance with?

Answer 29

ASTM E119, ASTM E814, UL 263, or UL 1479

Penetrations shall be protected by an approved penetration firestop system installed as tested in accordance with AST E119, AST E814, UL 263, or UL 1479 with a positive pressure differential of not less than 0.01 of an inch of water (0.002 kPa).

Question 30

If a rated assembly is penetrated by piping,
_______________piping may not be connected
to noncombustible piping unless the transition is demonstrated to be in accordance with this chapter.

Answer 30

Combustible

Where piping penetrates a rated assembly, the combustible piping shall not connect to noncombustible piping unless it is capable of being demonstrated that the transition is in accordance with of Section 1404.3.

Question 31

Systems protecting floor penetrations must have a_____________of no less than 1 hour but
not less than the required fire resistance rating of the floor being penetrated.

Answer 31

T rating

Floor penetrations contained within the cavity of a wall at the location of the floor penetration do not require a T rating. No T rating shall be required for floor penetrations by piping that is not in direct contact with combustible material.

Question 32

After the installation, alteration, or repair of any gas piping, and before it is used:

Answer 32

Notify Authority Having Jurisdiction of readiness for inspection

Upon completion of the installation, alteration, or repair of gas piping, and prior to the use thereof, the Authority Having Jurisdiction shall be notified that such gas piping is ready for inspection.

Question 33

True or False: Subsoil drains shall be of perforated or open-jointed approved drain tile or pipe.

Answer 33

True

Subsoil drains shall be provided around the perimeter of buildings having basements, cellars, crawl spaces, or floors below grade. Such subsoil drains shall be permitted to be positioned inside or outside of the footing, shall be of perforated or open-jointed approved drain tile or pipe, not less than 3 inches (80 mm) in diameter, and shall be laid in gravel, slag, crushed rock, approved3/4 of an inch (19.1 mm) crushed, recycled glass aggregate, or other approved porous material with not less than 4 inches(102 mm) surrounding the pipe. Filter media shall be provided for exterior subsoil piping.

Question 34

True or False: Flagpoling of vents is prohibited except where the roof is used for purposes other than weather protection.

Answer 34

True

Vent pipes shall be extended separately or combined, of full required size, not less than 6 inches (152 mm) above the roof or firewall. Flagpoling of vents shall be prohibited except where the roof is used for assembly purposes or parking. Vents within 10 feet (3048 mm) of a part of the roof that is used for assembly purposes or parking shall extend not less than 7 feet (2134 mm) above such roof and shall securely stay.

Question 35

What kind of valve does not need to be equipped with a locking feature?

Answer 35

Fixture supply control valves

Valves, except fixture supply control valves, shall be equipped with a locking feature.

Question 36

Defective pipe, tubing, and fittings shall be:

Answer 36

Replaced

Gas pipe, tubing, and fittings shall be clear and free from cutting burrs and defects in structure or threading, and shall be thoroughly brushed and chip and scale blown. Defects in pipe, tubing, and fittings shall not be repaired. Defective pipe, tubing, and fittings shall be replaced. [NFPA 54: 5.6.5]
(NFPA 54: National Fuel Gas Code)

Question 37

What other requirements for firestop protection must be met, besides those in Chapter 14?

Answer 37

Building code

Piping penetrations of required fire-resistance-rated walls, partitions, floors, floor/ceiling assemblies, roof/ceiling assemblies, or shaft enclosures shall be protected in accordance with the requirements of the building code, and this chapter.

Question 38

Where sleeves are used they must be securely fastened:

Answer 38

To the fire-rated assembly

Where sleeves are used, the sleeves shall be securely fastened to the fire-resistance-rated assembly. The (inside) annular space between the sleeve and the penetrating item and the (outside) annular space between the sleeve and the fire-resistance-rated assembly shall be firestopped in accordance with this chapter.

Question 39

Copper and copper alloy pipe shall not be used if the gas contains more than an average of 0.3 grains of__________ per 100 SCF of gas.

Answer 39

Hydrogen sulfide

Copper and copper alloy pipe shall not be used if the gas contains more than an average of 0.3 grains of hydrogen sulfide per 100standard cubic feet (scf) of gas (0.7 mg/100 L). Threaded copper, copper alloy, or aluminum alloy pipe shall not be used with gases corrosive to such material. [NFPA 54:5.6.2.3 - 5.6.2.4]
(NFPA 54: National Fuel Gas Code)

Question 40

If a gray water installation exceeds a maximum discharge capacity of 250 gallons per day, it must be designed by a

Answer 40

Registered Design Professional

Alternate water source systems shall be designed in accordance with this chapter shall be designed by registered design professional or licensed person who demonstrates competency to design the alternate water source system as required by the Authority Having Jurisdiction. Components, piping and fittings used in an alternate water source system shall be listed.

Question 41

What must closet bends or stubs be even with, after they are cut off to present a smooth surface?

Answer 41

Top of the closet ring

Closet bends or stubs shall be cut off so as to present a smooth surface even with the top of the closet ring before rough inspection is called. Closet rings (closet flanges) shall be adequately designed and secured to support fixtures connected thereto.

Question 42

Where sleeves are used the inside annular space between the sleeve and the penetrating item:

Answer 42

Shall be firestopped in accordance with this chapter.

Where sleeves are used, the sleeves shall be securely fastened to the fire-resistance-rated assembly. The (inside) annular space between the sleeve and the penetrating item and the (outside) annular space between the sleeve and the fire-resistance-rated assembly shall be firestopped in accordance with this chapter.

Question 43

How shall copper to copper joints be attached?

Answer 43

Brazed

Copper-to-copper joints shall be brazed using a copper-phosphorus or copper-phosphorus-silver brazing filler metal (BCuP series)
without flux. [NFPA 99:5.1.10.4.1.7]
(NFPA 99: Health Care Facilities Code)

Question 44

True or False: The mention of ‘one- and two-family dwellings’ implies that they are exempt from providing rain gutters on pitched roofs.

Answer 44

False

Roofs, paved areas, yards, courts, courtyards, vent shafts, light wells, or similar areas having rainwater, shall be drained into a separate storm sewer system, or into a combined sewer system where a separate storm sewer system is not available, or to some other place of disposal satisfactory to the Authority Having Jurisdiction. In the case of one- and two-family dwellings, storm water shall be permitted to be discharged on flat areas, such as streets or lawns, so long as the storm water shall flow away from the building and away from adjoining property, and shall not create a nuisance.

Question 45

Gravity grease interceptors complying with
IAPMO Z1001 may not be installed anywhere in a building where:

Answer 45

Food is handled

Each grease interceptor shall be so installed and connected that it shall be easily accessible for inspection, cleaning, and removal of the intercepted grease. A gravity grease interceptor that complies with IAPMO Z1001 shall not be installed in a building where food is handled. Location of the grease interceptor shall meet the approval of the Authority Having Jurisdiction.

Question 46

What kind of building requires a connection to the public sewer or a private sewage disposal system?

Answer 46

Buildings with plumbing fixtures

Plumbing fixtures, drains, appurtenances, and appliances, used to receive or discharge liquid wastes or sewage, shall be connected properly to the drainage system of the building or premises, in accordance with the requirements of this code.
2018 UPC - 304.0 Connections to Plumbing System Required.
2018 UPC - 304. 1General.

The drainage system of each new building and of new work installed in an building shall be separate and independent from that of any other building where available, every building shall have an independent connection with or private sewer.
2018 UPC - Independent Systems.
2018 UPC - 311.1 General.
2018 UPC® QuickPass Flash Cards

Question 47

Gas appliances of other than natural draft design and other than Category I vented appliances shall be provided with____________ ventilation, and dilution air in accordance with the appliance manufacturer’s instructions.

Answer 47

Combustion

Appliances of other than natural draft design appliances not-designated as Category I vented appliances, and appliances equipped with power burners shall be provided with combustion, ventilation, and dilution air in accordance with the appliance manufacturer’s instructions. [NFPA 54:9.3.1.2]
(NFPA 54: National Fuel Gas Code)