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Plumbing > Plumbing 2nd Importance > Flashcards

Plumbing 2nd Importance Flashcards

1
Q

An approved type pressure regulator shall be installed where local static water pressure exceeds_____________pounds per square inch.

A

80 psi

Where static water pressure in the water supply piping is exceeding 80 psi (552 kPa), an approved-type pressure regulator preceded by an adequate strainer shall be installed and the static pressure reduced to 80 psi (552 kPa) or less. Pressure regulator(s)equal to or exceeding 1-1/2 inches (40 mm) shall not require a strainer.
Such regulator(s) shall control the pressure to water outlets in the building unless otherwise approved by the Authority Having
Jurisdiction.

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2
Q

The supply lines or fittings for every plumbing fixture shall be so installed as to prevent____________.

A

Backflow

The supply lines and fittings for every plumbing fixture shall be installed as to prevent backflow in accordance with Chapter 6.

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3
Q

A vent connecting one or more individual vents with a vent stack or a stack vent.

A

Branch vent

A vent connecting one or more individual vents with a vent stack or stack vent.

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4
Q

In floor-mounted, back-outlet water closets installations, which of the following floor flanges must not be used?

A

Eccentric, offset, or reducing

Where floor-mounted, back-outlet water closets are used, the soil pipe shall be not less than 3 inches(80 mm) in diameter. Offset, eccentric, or reducing floor flanges shall not be used.

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5
Q

When penetrating a fire-resistance-rated wall, the fire resistance rating of the wall shall be restored to its_____________rating.

A

Original

Where penetrating a fire-resistance-rated wall, partition, floor, floor-ceiling assembly, roof-ceiling assembly, or shaft enclosure, the fire-resistance rating of the assembly shall be restored to its original
rating.

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6
Q

All water closet seats, except those in
___________units, shall be of the open front type.

A

Dwelling

Water closet seats shall be properly sized for the water closet bowl type, and shall be of smooth, non-absorbent material. Seats, for public use, shall be of the elongated type and either of the open front type or have an automatic seat cover dispenser. Plastic seats shall comply with IAPMO Z124.5.

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7
Q

Piping for medical gas systems shall be listed
Type______________medical gas tube.

A

K or L

Tubes shall be hard-drawn seamless copper ASTM B819 medical gas tube, Type L, except Type K shall be used where operating pressures exceed a gauge pressure of 185 psi (1276 kPa), Type K must be used for sizes exceeding DN80 [(NPS 3) (3-1/8” O.D.)]. ASTM B819 medical gas tube shall be identified by the manufacturer’s markings “OXY,” “MED,”
“OXY/MED,” “OXY/ACR,” or “ACR/MED” in blue (Type L) or green (Type
K). [NFPA 99:5.1.10.1.4 - 5.1.10.1.5]
(NFPA 99: Health Care Facilities Code)

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8
Q

Cast iron fittings up to and including _____________inches in size, when used in connection with potable water piping shall be galvanized.

A

2 inches

Cast-iron fittings up to and including 2 inches (50 mm) in size, where used in connection with potable water piping, shall be galvanized.

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9
Q

Unlisted water heaters must be installed with a clearance of___________on all sides and the rear.

A

12 inches

Unlisted water heaters shall be installed with a clearance of12 inches (305 mm) on all sides and rear. Combustible floors under unlisted water heaters shall be protected in an approved manner.
INFPA 54:10.27.2.2].
(NFPA 54: National Fuel Gas Code)

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10
Q

Gas meters shall not be placed where subjected to:

A

Damage

Gas meters shall not be placed where they will be subjected to damage, such as adjacent to a driveway; under a fire escape; in public passages, halls, or where they will be subject to excessive corrosion or vibration. [NFPA 54:5.7.2.2]
(NFPA 54: National Fuel Gas Code)

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11
Q

Floor drains shall be provided with an approved____________ having a waterway equivalent to the area of the tailpiece.

A

Strainer

Floor drains shall be considered plumbing fixtures, and each such drain shall be provided with an approved-type strainer having a waterway equivalent to the area of the tailpiece. Floor drains shall be of an approved type and shall provide a watertight joint in the
floor.

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12
Q

Pot sinks, scullery sinks, commercial dishwashing machines, silverware washing machines, and other similar fixtures shall be connected______________to the drainage
system.

A

Directly

Pot sinks, scullery sinks, dishwashing sinks, silverware sinks, and other similar fixtures shall be connected directly to the drainage system. A floor drain shall be provided adjacent to the fixture, and the fixture shall be connected on the sewer side of the floor drain trap, provided that no other drainage line is connected between the floor drain waste connection and the fixture drain. The fixture and floor drain shall be trapped and vented in accordance with this code.

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13
Q

Offsets in multistory common vent system shall not exceed___________degrees from vertical.

A

45 degrees

(1) The offset shall not exceed 45 degrees (0.79 rad) from vertical.

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14
Q

Bathtubs, laundries, washing machine stand pipes, kitchen sinks and dishwashers shall be considered_____________fixtures.

A

Suds-producing

Drainage connections shall not be made into a drainage piping system within 8 feet (2438 mm) of a vertical to horizontal change of direction of a stack containing suds-producing fixtures. Bathtubs, laundries, washing machine standpipes, kitchen sinks and dishwashers shall be considered suds-producing fixtures. Where parallel vent stacks are required, they shall connect to the drainage stack at a point 8 feet (2438 mm) above the lowest point of the drainage stack.

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15
Q

___________________means having direct access
without the necessity of removing any panel, door, or similar obstruction?

A

Readily accessible

Having a direct access without the necessity of removing a panel, door, or similar obstruction.

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16
Q

The minimum required combustion air volume shall be___________ cubic feet per 1000 BTU/hour.

A

50 cu. Ft.

The required volume shall be not less than 50 cubic feet per 1000
British thermal units per hour (Btu/hr) (4.83 m3/kW).[NFPA
54:9.3.2.1]
(NFPA 54: National Fuel Gas Code)

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17
Q

For each elbow greater than 45 degrees up to and including 90 degrees, the maximum common vent capacity listed in the venting tables shall be reduced by_____________percent.

A

10 percent

The vent connector capacities listed in the common vent sizing tables include allowance for two 90 degree (1.57 rad) elbows. For each additional elbow up to and including 45 degrees (0.79 rad), the maximum vent connector capacity listed in the venting tables shall be reduced by 5 percent. For each elbow greater than 45 degrees(0.79 rad) up to and including 90 degrees (1.57 rad), the maximum vent connector capacity listed in the venting tables shall be reduced by 10 percent. [NFPA
54:13.2.7]
(NFPA 54: National Fuel Gas Code)

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18
Q

Roof drains shall be of cast iron, copper or copper alloy, lead or:

A

Plastic

Roof drains shall be constructed of aluminum, cast-iron, copper alloy of not more than 15 percent zinc, leaded nickel bronze, stainless steel, ABS, PVC, polypropylene, polyethylene, or nylon and shall comply with ASME A112.3.1 or ASME A112.6.4.

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19
Q

A 50 pound per square inch air pressure may be substituted for the water test. The piping shall withstand the test without leaking for a period of not less than________________minutes.

A

15 minutes

Upon completion of a section or of the entire hot and cold water supply system, the system shall be tested with water or air. The portable water test pressure shall be greater than or equal to the working pressure under which the system is to be used. The air pressure shall be a minimum of 50 psi (345 kPa). Plastic pipe shall not be tested with air. The piping system shall withstand the test pressure without showing evidence of leakage for a period of not less than 15 minutes.

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20
Q

The finished floor of a shower receptor shall slope uniformly from the sides toward the drain not more than___________inch per foot.

A

1/2 inch

The finished floor of the receptor shall slope uniformly from the sides towards the drain not less than 1/4 inch per foot(20.8 mm/m), nor more than 1/2 inch per foot (41.8 mm/m).

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21
Q

The size of the supply piping outlet for any gas appliance shall not be less than____________inch.

A

1/2 inch

The size of the supply piping outlet for a gas appliance shall be not less than 1/2 of an inch in diameter (15 mm).
The size of a piping outlet for a mobile home shall be not less than3/4 of an inch in diameter (20 mm).

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22
Q

What is the minimum size pipe allowed in a medical gas system?

A

1/2 inch

Mains and branches in medical gas piping systems shall be not less than DN15 (NPS 1/2)(5/8 of an inch O.D.) size. Mains and branches in medical-surgical vacuum systems shall be not less than DN20 (NPS 3/4)(7/8 of an inch O.D.) size. [NFPA 99:5.1.10.11.1.2, 5.1.10.11.1.3]
(NFPA 99: Health Care Facilities Code)

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23
Q

Wall-hung fixtures shall be rigidly supported by metal supporting members so that no___________
is transmitted to the connection.

A

Strain

Wall-hung fixtures shall be rigidly supported by metal supporting members so that no strain is transmitted to the connections. Floor-affixed supports for off-the-floor plumbing fixtures for public use shall comply with ASME A112.6.1M. Framing-affixed supports for off-the-floor water closets with concealed tanks shall comply with ASME A112.6.2. Flush tanks and similar appurtenances shall be secured by approved non-corrosive screws or bolts.

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24
Q

Each plumbing fixture trap must be protected against:

A

Siphonage and backpressure

Each plumbing fixture trap, except as otherwise provided in this code, shall be protected against siphonage and backpressure, and air circulation shall be ensured throughout all parts of the drainage system by means of vent pipes installed in accordance with the requirements of this chapter and as otherwise required by this code.

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25
Q

Each fixture trap shall have a water seal of not less than___________ inches.

A

2 inches

Each fixture trap shall have a liquid seal of not less than 2 inches(51 mm) and not more than 4 inches (102 mm), except where a deeper seal is found necessary by the Authority Having Jurisdiction. Traps shall be set true with respect to their liquid seals and, where necessary, they shall be protected from freezing.

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26
Q

No piping shall be directly embedded in___________or masonry.

A

Concrete

Piping in connection with a plumbing system shall be so installed that piping or connections will not be subject to undue strains or stresses, and provisions shall be made for expansion, contraction, and structural settlement. No plumbing piping shall be directly embedded in concrete or masonry. No structural member shall be seriously weakened or impaired by cutting, notching, or otherwise, as defined in the building code.

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27
Q

Gas piping should never be made of which material?

A

Cast-iron

Cast-iron pipe shall not be used. [NFPA 54:5.6.2.1]
(NFPA 54: National Fuel Gas Code)

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28
Q

Fixtures having concealed slip joint connections shall be provided with an access panel or utility space at least____________ inches in its least dimension.

A

12 inches

Fixtures having concealed slip joint connections shall be provided with an access panel or utility space not less than12 inches (305 mm) in its least dimension and so arranged without obstructions as to make such connections accessible for inspection and repair.

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29
Q

Indoor gas hose connectors shall not exceed___________ feet.

A

6 feet

(2) The connector shall be of minimum length and shall not exceed
6 feet (1829 mm)

30
Q

Each pressure relief valve shall be an approved automatic type with drain, and each such relief valve shall be set at a pressure of not more than___________ pounds per square inch.

A

150 psi

Each pressure relief valve shall be an approved automatic type with drain, and each such relief valve shall be set at a pressure of not more than 150 psi (1034 kPa). No shutoff valve shall be installed between the relief valve and the system.

31
Q

The outlet opening of oil and flammable interceptors must have a minimum water seal of:

A

18 inches

The outlet opening shall have not less than an 18 inch (457 mm) water seal and shall have a minimum capacity as follows: Where not more than three motor vehicles are serviced, stored, or both, interceptors shall have a minimum capacity of 6 cubic feet (0.2 m3), and 1 cubic foot (0.03 m3) of capacity shall be added for each vehicle up to 10 vehicles.

32
Q

Fixture traps are protected by vent pipes from:

A

Siphonage

Each plumbing fixture trap, except as otherwise provided in this code, shall be protected against siphonage and backpressure, and air circulation shall be ensured throughout all parts of the drainage system by means of vent pipes installed in accordance with the requirements of this chapter and as otherwise required by this code.

33
Q

What method must be used to connect a parallel vent stack to a drainage stack?

A

Yoke vent

Each drainage stack that extends 10 or more stories shall be served by a parallel vent stack, which shall extend undiminished in size from its upper terminal and connect to the drainage stack at or immediately below the lowest fixture drain. Each such vent stack shall also be connected to the drainage stack at each fifth floor, counting down from the uppermost fixture drain, using a yoke vent, the size of which shall not be less in diameter than either the drainage or the vent stack, whichever is smaller.

34
Q

The minimum size of an indirect waste pipe may not be smaller than the drain on the unit, and never less than___________ inch(es), except
for ice-making machines and refrigeration coils.

A

1 inch

Except for refrigeration coils and ice-making machines, the size of the indirect waste pipe shall not be smaller than the drain on the unit, but shall be not smaller than 1 inch (25 mm), and the maximum developed length shall not exceed 15 feet (4572 mm).
Indirect waste pipes for ice-making machines shall be not less than the drain on the unit, and in no case less than 3/4 of an inch(20 mm).

35
Q

The diameter of an individual vent shall not be less than___________inches nor less than 1/2 the
diameter of the drain to which it is connected.

A

1-1/4 inches

The size of vent piping shall be determined from its length and the total number of fixture units connected thereto, in accordance with Table 703.2
The diameter of an individual vent shall be not less than 1-1/4 inches (32 mm) nor less than one-half the diameter of the drain to which it is connected. In addition, the drainage piping of each building and each connection to a public sewer or a private sewage disposal system shall be vented by means of one or more vent pipes, the aggregate cross-sectional area of which shall be not less than that of the largest required building sewer, as determined from Table 703.2.

36
Q

Indirect waste pipes exceeding___________feet, in length shall be directly trapped, but such traps need not be vented.

A

5 feet

Except as hereinafter provided, the size of indirect waste piping shall be in accordance with other sections of this code applicable to drainage and vent piping.
No vent from indirect waste piping shall combine with a sewer-connected vent, but shall extend separately to the outside air. Indirect waste pipes exceeding 5 feet (1524 mm) but less than 15 feet (4572 mm) in length shall be directly trapped, but such traps need not be vented. Indirect waste pipes less than 15 feet (4572 mm) in length shall be not less than the diameter of the drain outlet or tailpiece of the fixture, appliance or equipment served and in no case less than 12 of an inch (15 mm). Angles and changes of direction in such indirect waste pipes shall be provided with cleanouts so as to permit flushing and cleaning.

37
Q

Joints at the roof around vent pipes shall be made________________ by the use of approved
flashings or flashing material.

A

Watertight

Joints at the roof around vent pipes shall be made watertight by the use of approved flashings or flashing material.

38
Q

Emergency safety showers shall___________ be limited in their water supply flow rates.

A

Not

Emergency eyewash and shower equipment shall not be limited in the water supply flow rates. Where hot and cold water is supplied to an emergency shower or eyewash station, the temperature of the water supply shall be controlled by a temperature actuated mixing valve complying with ASSE 1071. The flow rate, discharge pattern, and temperature of flushing fluids shall be provided in accordance with ISEA Z358.1.

39
Q

Each trap, except for traps within an interceptor or similar device shall be___________________.

A

Self-cleaning

Each trap, except for traps within an interceptor or similar device shall be self-cleaning. Traps for bathtubs, showers, lavatories, sinks, laundry tubs, floor drains, urinals, drinking fountains, dental units, and similar fixtures shall be of standard design, weight and shall be of ABS, cast-brass, cast-iron, lead, PP, PVC, or other approved material. An exposed and readily accessible drawn-copper alloy tubing trap, not less than 17 B & S Gauge (0.045 inch) (1.143 mm), shall be permitted to be used on fixtures discharging domestic sewage.

40
Q

Any excavation for a disposal field, irrigation field, or mulch basin must be at least_________
feet vertically from the highest known seasonal groundwater level, and must not extend to a depth where gray water might contaminate the groundwater or surface water.

A

3 feet

No excavation for an irrigation field, disposal field, or mulch basin shall extend within 3 feet (914 mm) vertical of the highest known seasonal groundwater level, nor to a depth where gray water contaminates the groundwater or surface water. The applicant shall supply evidence of groundwater depth to the satisfaction of the Authority Having Jurisdiction.

41
Q

What is the minimum water seal required for interceptors for sand or other similar heavy solids?

A

6 inches

Interceptors (clarifiers) for sand and similar heavy solids shall be so designed and located as to be readily accessible for cleaning and shall have a water seal of not less than 6 inches (152 mm).

42
Q

Interceptors (clarifiers) for sand and similar heavy solids shall be so designed and located as to be readily accessible for cleaning and shall have a water seal of not less than_________inches.

A

6 inches

Interceptors (clarifiers) for sand and similar heavy solids shall be so designed and located as to be readily accessible for cleaning and shall have a water seal of not less than 6 inches (152 mm).

43
Q

Flushometer valves shall not be used where the water___________is insufficient to properly operate them.

A

Pressure

Flushometer valves and tanks shall comply with ASSE 1037. ASME
A112.1037/CSA B125.37, and shall be installed in accordance with Section
603.5.1. No manually controlled flushometer valve shall be used to flush more than one urinal, and each such urinal flushometer valve shall be an approved, self-closing type discharging a predetermined quantity of water. Flushometers shall be installed so that they will be accessible for repair. Flushometer valves shall not be used where the water pressure is insufficient to properly operate them. Where the valve is operated, it shall complete the cycle of operation automatically, opening fully, and closing positively under the line water pressure. Each flushometer shall be provided with a means for regulating the flow through it.

44
Q

What method should be used to connect a domestic dishwashing machine to the drainage system?

A

An approved airgap fitting

No domestic dishwashing machine shall be directly connected to a drainage system or food waste disposer without the use of an approved dishwasher air gap fitting on the discharge side of the dishwashing machine. Listed air gaps shall be installed with the flood-level (FL) marking at or above the flood level of the sink or drainboard, whichever is higher.

45
Q

The minimum fixture branch pipe size for a
Lavatory is_________inch.

A

1/2 inch

The quantity of water required to be supplied to every plumbing fixture shall be represented by fixture units, as shown in Table610.3. Equivalent fixture values shown in Table 610.3 include both hot and cold water demand.

46
Q

Trough-type and invisible seal urinals shall be_____________.

A

Prohibited

Trough urinals and urinals with an invisible seal shall be prohibited.

47
Q

When testing with air, the air shall be kept in the system, or in the portion under test, for in at least___________minutes before inspection
starts.

A

15 minutes

The air test shall be made by attaching an air compressor testing apparatus to a suitable opening and, after closing all other inlets and outlets to the system, forcing air into the system until there is a uniform gauge pressure of 5 pounds-force per square inch (psi)(34 kPa) or sufficient to balance a column of mercury 10 inches(34 kPa) in height. The pressure shall be held without introduction of additional air for a period of not less than 15 minutes.

48
Q

Gutters in public or gang shower rooms shall have rounded corners for easy cleaning and shall be sloped not less than____________percent toward the drain.

A

2 percent

Floors of public shower rooms shall have a nonskid surface and shall be drained in such a manner that wastewater from one bather shall not pass over areas occupied by other bathers. Gutters in public or gang shower rooms shall have rounded corners for easy cleaning and shall be sloped not less than 2 percent toward drains.
Drains in gutters shall be spaced at a maximum of 8 feet(2438 mm) from sidewalls nor more than 16 feet (4877 mm) apart.

49
Q

Water closet bowls for public use shall be of the______________type.

A

Elongated

Nater closets shall comply with ASME A112.19.2/CSA B45.1, ASME A112.19.3/CSA B45.4, or CSA B45.5/IAPMO Z124. Water closet bowls for public use shall be of the elongated type. In nurseries, schools, and other similar places where plumbing fixtures ire provided for the use of children less than 6 years of age, water losets shall be of a size and height suitable for children’s use.

50
Q

If a cross-connection is discovered, the system for potable water must be chlorinated with:

A

50 parts-per-million

(5) The potable water system shall be chlorinated with 50 parts-per-million (ppm) chlorine for 24 hours.

51
Q

When gray water systems are designed, they must be able to distribute the total estimated amount of gray water on a:

A

Daily basis

Gray water systems shall be designed to have the capacity to accommodate peak flow rates and distribute the total amount of estimated gray water on a daily basis to a subsurface irrigation field, subsoil irrigation field, or mulch basin without surfacing, ponding, or runoff.

52
Q

Openings shall be located so that one combustion air opening extends within the lower___________inches of the appliance
enclosure.

A

12 inches

Two permanent openings, one commencing within 12 inches (305
mm) of the top of the enclosure and one commencing within 12 inches (305 mm) of the bottom of the enclosure, shall be provided.

53
Q

True or False: All natural gas regulations and tables are based on the use of gas having a specific gravity of 0.60.

A

True

The following regulations shall comply with this section and Section 1215.0, shall be the standard for the installation of gas piping. Natural gas regulations and tables are based on the use of a gas having a specific gravity of 0.60 and for undiluted liquefied petroleum gas, having a specific gravity of 1.50. Where gas of a different specific gravity is to be delivered, the specific gravity conversion factors provided by the serving gas supplier shall be used in sizing piping systems from the pipe sizing tables in this chapter.

54
Q

Each vent shall terminate not less than ___________feet in every direction from any lot line (alley and street excepted).

A

3 feet

Each vent shall terminate not less than 10 feet (3048 mm) from, or not less than 3 feet (914 mm) above, an openable window, door, opening, air intake or vent shaft, or not less than 3 feet (914 mm)in every direction from a lot line, alley and street excepted.

55
Q

Indirect waste pipes less than________________in length shall be directly trapped, but such traps need not be vented.

A

15 feet

Except as hereinafter provided, the size of indirect waste piping shall be in accordance with other sections of this code applicable to drainage and vent piping.
No vent from indirect waste piping shall combine with a sewer-connected vent, but shall extend separately to the outside air. Indirect waste pipes exceeding 5 feet (1524 mm) but less than 15 feet (4572 mm) in length shall be directly trapped, but such traps need not be vented. Indirect waste pipes less than 15 feet (4572 mm) in length shall be not less than the diameter of the drain outlet or tailpiece of the fixture, appliance or equipment served and in no case less than 12 of an inch (15 mm). Angles and changes of direction in such indirect waste pipes shall be provided with cleanouts so as to permit flushing and cleaning.

56
Q

Sixty degree branches or offsets may be used when installed in a true___________position.

A

Vertical

Vertical drainage lines connecting with horizontal drainage lines shall enter through 45 degree (0.79 rad) wye branches, combination wye and one-eighth bend branches or other approved fittings of equivalent sweep. Branches or offsets of 60 degrees (1.05 rad)shall be permitted to be used where installed in a true vertical position.

57
Q

After the potable water system has been chlorinated with 50 ppm chlorine for 24 hours, then it must be:

A

Flushed

(6) The potable water system shall be flushed after 24 hours, and a standard bacteriological test shall be performed. Where test results are acceptable, the potable water system shall be permitted to be recharged.

58
Q

No fitting having more than__________inlet at the
same level shall be used unless such fitting is constructed so that the discharge from one inlet cannot readily enter any other inlet.

A

One

Horizontal drainage lines, connecting with a vertical stack, shall enter through 45 degree (0.79 rad) wye branches, 60 degree (1.05 rad) wye branches, combination wye and one-eighth bend branches, sanitary tee or sanitary tapped tee branches, or other approved fittings of equivalent sweep. No fitting having more than one inlet at the same level shall be used unless such fitting is constructed so that the discharge from one inlet cannot readily enter any other inlet. Double sanitary tees shall be permitted to be used where the barrel of the fitting is not less than two pipe sizes larger than the largest inlet, (pipe sizes recognized for this purpose are 2 inches, 2-1/2 inches, 3 inches, 3-1/2 inches, 4 inches, 4-1/2 inches, 5 inches, 6 inches, etc.) (50 mm, 65 mm, 80 mm, 90 mm, 100 mm, 115 mm, 125 mm, 150 mm, etc.).

59
Q

What is the lowest water pressure required after allowing for friction and other pressure losses?

A

15 psi

Where the water pressure in the main or other source of supply does not provide a residual water pressure of not less than 15pounds force per square inch (psi) (103 kPa), after allowing for friction and other pressure losses, a tank and a pump or other means that will provide said 15 psi (103 kPa) pressure shall be installed. Where fixtures, fixture fittings, or both are installed that, require residual pressure exceeding 15 psi (103 kPa), the minimum residual pressure shall be provided.

60
Q

Every fixture that discharges into a gravity grease interceptor must be:

A

Individually trapped and vented

Each fixture discharging into a grease interceptor shall be individually trapped and vented in an approved manner.

61
Q

Piping penetrations must be inspected by the Authority Having Jurisdiction to verify compliance, before they are:

A

Concealed

Prior to being concealed, piping penetrations shall be inspected by the Authority Having Jurisdiction to verify compliance with the fire-resistance rating prescribed in the building code.

62
Q

The building sewer shall be_______________ at all points.

A

Watertight

Building sewers shall be tested by plugging the end of the building sewer at its points of connection with the public sewer or private sewage disposal system and completely filling the building sewer with water from the lowest to the highest point thereof, or by approved equivalent low-pressure air test. Plastic DWV piping systems shall not be tested by the air test method. The building sewer shall be watertight.

63
Q

Which of the following are required of the joint of a wall-hung lavatory, where it contacts the wall?

A

Made watertight

When a fixture comes in contact with the wall or floor, the joint between the fixture and the wall or floor shall be made watertight.

64
Q

Every water supply to a urinal shall be protected by an approved type vacuum breaker or other approved____________ prevention device.

A

Backflow

A water supply to a urinal shall be protected by an approved-type vacuum breaker or other approved backflow prevention device in accordance with Section 603.5.
(2018 UPC - 603.5 Specific Requirements.)

65
Q

In the case of one- and two-family dwellings, stormwater may be discharged on flat areas such as:

A

Streets or lawns

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.

66
Q

Water closets and urinals shall be flushed by means of an approved flush tank or_____________valve.

A

Flushometer

Except where not deemed necessary for safety or sanitation by the Authority Having Jurisdiction, each plumbing fixture shall be provided with an adequate supply of potable running water piped thereto in an approved manner, so arranged as to flush and keep it in a clean and sanitary condition without danger of cross-connection. Water closets and urinals shall be flushed using an approved flush tank or flushometer valve.

67
Q

Sumps, condensers, or intercepting tanks which are constructed of concrete shall have walls and bottom not less than_______________inches in thickness.

A

4 inches

Sumps, condensers, or intercepting tanks that are constructed of concrete shall have walls and bottom not less than 4 inches(102 mm) in thickness, and the inside shall be cement plastered not less than 1/2 of an inch (12.7 mm) in thickness. Condensersconstructed of metal shall be not less than No. 12 U.S. standard gauge (0.109 inch) (2.77 mm), and such metal condensers shall be protected from external corrosion by an approved bituminous coating.

68
Q

The principle artery of the venting system to which vent branches may be connected.

A

Main vent

The principal artery of the venting system to which vent branches may be connected.

69
Q

The trap shall be the same________________ as the trap arm to which it is connected.

A

Size

The size (nominal diameter) of a trap for a given fixture shall be sufficient to drain the fixture rapidly, but in no case less than nor more than one pipe size larger than given in Table 702.1. The trap shall be the same size as the trap arm to which it is connected.

70
Q

Openings shall be located so that one combustion air opening extends within the upper______________inches of the appliance
enclosure.

A

12 inches

Two permanent openings, one commencing within 12 inches (305
mm) of the top of the enclosure and one commencing within 12 inches (305 mm) of the bottom of the enclosure, shall be provided.

71
Q

A manually operated_________________shall not be placed in any equipment vent connector.

A

Damper

A manually operated damper shall not be placed in an appliance vent connector. Fixed baffles shall not be classified as manually operated dampers. [NFPA 54: 12.14]
(NFPA 54: National Fuel Gas Code)

Plumbing (5 decks)

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