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Plumbing Code Training > General Exam #3 > Flashcards

General Exam #3 Flashcards

1
Q

A Plumbing Permit is required for

a. replacing faucet washers
b. clearing drain line stoppages
c. cleaning hot water tanks
d. replacing plumbing fixtures

A

d. replacing plumbing fixtures (103.1.2)

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2
Q

Before any portion of a combination waste and vent system is installed, the code requires that

a. the owner gives consent in writing
b. plans and specifications be approved by the AHJ
c. trap primers be installed for each trap
d. a separate connection be made to the public sewer

A

b. plans and specifications be approved by the AHJ (910.2)

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3
Q

The maximum number of water closets on any 3-inch vertical pipe or stack shall not exceed

A

Four water closets (Table 7-5, footnote #4)

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4
Q

A physical separation that may be a low inlet into the indirect wast receptor from the fixtures, appliances, or devices indirectly connected is a(n)

A

airbreak (203.0)

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5
Q

Sleeves shall be provided to protect all piping through ________and _______ walls.

a. floors, concrete
b. wood, concrete
c. concrete, masonry
d. none of the above

A

c. concrete, masonry (313.10.1)

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6
Q

Enlargement of a 3-inch closet bend or stub to 4 inches is

A

a. not considered an obstruction by code (311.5)

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7
Q

All trenches deeper than the footing of any building or structure and paralleling the same must be at least _____ therefrom.

A

45 degrees (313.3 & 315.1)

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8
Q

Four-inch cast-iron soil stacks shall be supported at ______.

A

the base and each floor not to exceed 15 feet (Table 3-2)

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9
Q

The water test for drainage systems shall be at least ______.

A

10-foot head (712.2)

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10
Q

The total drainage fixture unit value for a SFD home with one kitchen sink. one laundry sink, one bath tub, one lavatory, and one 1.6 gravity tank-type water closet is _______ fixture units.

A

10 total fixture units

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11
Q

ABS-DWV piping shall be limited to __________.

A

Not to exceed 2 stories of residential accommodation (701.1.2)

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12
Q

Copper tube for above ground and venting systems shall be at least __________.

A

Type DWV (701.1.4)

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13
Q

The acceptable fitting for connecting a vertical drain line to a horizontal drain line is a __________.

A

Wye and 1/8 bend (706.14)

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14
Q

Each horizontal drainage pipe shall be provided with a cleanout at its _______.

A

Upper terminal (707.4)

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15
Q

The cleanout fitting for a 4-inch house drain shall not be smaller than _________.

A

3-1/2 inches (Table 7-6)

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16
Q

Horizontal drainage piping shall be run at a uniform slope of not less than _______ percent?

A

Two (708.0)

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17
Q

The minimum size discharge pipe from an ejector in a single-dwelling unit having a water closet connected thereto shall be not less that _________ inches.

A

Two (710.3.2)

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18
Q

The total number of kitchen sinks allowed on a 2-inch vertical waste pipe is _________.

A

Eight (Table 7-5)

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19
Q

The maximum length for a required 1-1/2 inch vent pipe is __________ feet.

A

60 feet (Table 7-5)

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20
Q

Vent terminals in locations having minimum design temperatures below zero degrees F shall be a minimum of ___________ inches.

A

Two (906.7)

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21
Q

The maximum length permitted for an indirect waste pipe without a vent is less than _________ feet.

A

15 feet (803.0)

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22
Q

The maximum temperature of water discharging under pressure directly under pressure is __________.

A

140 degrees F (810.1)

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23
Q

In a combination waste and vent system, the trap serving a floor sink with a 2-inch tailpiece shall be at least _________ inches.

A

3 inches (910.4)

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24
Q

One trap may serve a set of three single-compartment sinks where the waste outlets are not more than __________ inches apart.

A

30 inches (1001.2)

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25
Q

The vertical distance between a fixture outlet and the trap weir shall not exceed _________ inches.

A

24 inches (1001.4)

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26
Q

The total length permitted for a 2-inch trap arm is __________ feet.

A

5 feet (Table 10-1)

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27
Q

Fixture traps shall have a water seal of not less than _________ inch(s).

A

2 inches (1005.0)

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28
Q

Closet bends or stubs shall be cut off as to present a smooth surface, even with the __________.

A

top of the closet ring (316.3.2)

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29
Q

A fixture tailpiece for a kitchen sink shall be at least __________ inch O.D.

A

1-1/2 inch (404.3)

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30
Q

The minimum pressure that should be maintained for fixtures containing flush tank supplies shall be ______ psi (piping sized using procedure in Appendix A).

A

8 psi (Appendix A, A3.1)

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31
Q

Elastomeric gasketed a rubber-rings joints shall comply with __________.

A

Installation standards, Appendix I

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32
Q

Screw-type ground joint metal-to-metal seat unions may be used at any point in the ______________.

A

Water supply system (316.2.2)

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33
Q

A bathtub with slip joint connections that will be concealed shall be provided with____________.

A

a minimum 12-inch X 12-inch access panel (404.2)

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34
Q

The distance from the center of any water closet to a side wall or partition shall not be less than ___________ inches.

A

15 inches (407.6)

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35
Q

No shower stall or receptor shall have a finished interior unable of encompassing a 30-inch circle except _____________>

A

showers designed to be accessible, and private use showers

36
Q

Vacuum breakers for water closet flushometer valves shall be installed with the critical levels at least __________ inch(s) above the overlfow rim of the bowl or the distance according to its listing.

A

6 inches (603.4.1)

37
Q

Valves on the discharge side of the water meter shall be _____________.

A

fullway valves (605.2)

38
Q

Water pressure regulators are required where the pressure is in excess of ___________ psi.

A

80 psi (608.2)

39
Q

The minimum size of any building supply pipe allowed be the code is ________ inch(es).

A

3/4 inch (610.8 (6))

40
Q

The minimum size of any building sewer shall be determined on the basis of the ___________.

A

total fixture units (717.0)

41
Q

The straight run of any building sewer, cleanouts are required at intervals of not to exceed _________.

A

100 feet (719.1)

42
Q

Every abandoned building sewer shall be plugged or capped within _______ feet of the property line.

A

5 feet (722.1)

43
Q

A natural gas pressure of 8 inches water column is most nearly ________ psi.

A

.288 psi (useful tables)

44
Q

The air pressure test (final inspection) shall be no less than ________ times the proposed maximum working pressure, but not less than _________ psi, irrespective of design pressure.

A

1-1/2 times, 3 psi (1214.3.2)

45
Q

For underground gas piping systems installed where external damage to the pipe is not likely to result, the minimum cover shall be _________ inches.

A

12 inches (1211.1.2(A))

46
Q

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

A

1/2 inch (1216.4)

47
Q

The overall length of an appliance connector for a gas water heater shall not exceed _______ inches.

A

72 inches (1212.4)

48
Q

Combustion air apenings used to connec t indoor spaces shall not be less than ________ square inches.

A

100 sq. in. (507.3 (1))

49
Q

Gas water heaters in residential garages shall be installed so that pilots and burners are above the floor level not less than _________ inches.

A

18 inches (508.14(1))

50
Q

The total fall of a 4-inch house sewer 150 feet long and installed at a grade of 1/8 inch per foot is most nearly __________.

A

18.75 inches

51
Q

Expansion and contraction of pipes may be provided for by use of __________.

A

expansion joints (313.2 and 705.3.2)

52
Q

The inspection of a gas piping system prior to covering or concealing such piping is called a ____________.

A

Rough piping inspection (1204.3.1)

53
Q

The discharge line from a sewage ejector shall be provided with a ________.

A

backwater valve and gate valve (710.4)

54
Q

In a special venting installation for island sinks, the return bend used under the drain board may be a _______________>

A

45-degree, 90-degree, 45-degree elbow (909)

55
Q

Each plumbing fixture trap shall be protected against siphonage and back pressure by means of a __________.

A

vent pipe (901)

56
Q

A joint made by firmly packing with oakum and filled with molten lead to a depth of not less than one inch, etc., is used with ____________.

A

Cast-iron bell and spigot soil pipe (705.1.1)

57
Q

Drains for gutters in public or gang shower rooms shall be spaced not more than ______ feet apart.

A

16 feet (411.9)

58
Q

Potable water supply to carbonators shall be protected by either an airgap or ______.

A

a vented backflow preventer (602.4.12)

59
Q

Single-wall metal vent connectors shall be securely supported and joints fastened with ________.

A

Sheet metal screws (510,.10..7)

60
Q

Gas piping inside any building shall not be installed in of through a _____________.

A

circulating air duct, clothes chute, gas vent, (1211.2.5)

61
Q

The finished floor of any shower receptor shall slope uniformly from the sides toward the drain within _______.

A

1/4 to 1/2 inch per foot (411.6)

62
Q

A shewer line installed horizontally will require cleanouts for each aggregate change in direction __________>

A

exceeding 135 degrees (719.1)

63
Q

Where a 1-inch diameter pipe is replaced with a 2-inch diameter pipe , the cross-sectional area will ___________>

A

increase four times (Useful tables)

64
Q

A pipe that makes an angle of 45 degrees from the vertical is considered ___________.

A

Vertical (224)

65
Q

One requirement for backwater valves is that they shall _________>

A

remain closed except during periods of flow (710.6)

66
Q

What is a prohibited fitting that shall not be used as a drainage fitting?

A

Side inlet quarter bend (311.1)

67
Q

No-hub cast-iron piping in 5-foot lengths, installed horizontally aboveground, shall be supported at ______________.

A

Every joint (Table 3-2)

68
Q

Requests for inspections to the AHJ are required to be made in advance by not less than ______ hours.

A

24 hours (103.5.4.1)

69
Q

Building sewers shall be tested by filling the water __________.

A

From the lowest to the highest point (723)

70
Q

Drainiage fittings shall not be made of _______.

A

Styrene (701.2)

71
Q

The distance from any gas vent 12 inches in size or smaller from a vertical wall or similar obstruction shall be _______ feet.

A

8 feet (510.6.2(1))

72
Q

Single-wall metal pipe for vent connectors shall be constructed of galvanized sheet steel not less than __________ inch.

A

0.0304 inch (510.7.1)

73
Q

To obtain the cubic feet per hour of gas required, divide input of appliance by __________.

A

the average Btu heating value per cubic foot of gas (1216.3)

74
Q

Detection of leaks in gas piping systems shall be located by means of ________.

A

a noncorrosive leak detection fluid (1214.4.2)

75
Q

THe inspection of gas piping that includes a determination that the gas piping size, material, and installation meet the requirement of the code is called a __________.

A

Rough piping inspection (1204.3.1)

76
Q

A pressure-type vacuum breaker is a device designed to be used for _________.

A

preventing back-siphonage (Table 6-2)

77
Q

Wall-mounted water closets shall be rigidly supported by ___________.

A

Metal supporting members (407.4)

78
Q

Bathtub traps may be constructed of ______.

A

Brass (1003.1)

79
Q

Gas equipment, located on the roof, requires an inside means of access for buildings more than _______ feet in height.

A

15 feet (509.3.2)

80
Q

The developed length between the trap of a water closet and its vent shall not exceed _____ feet.

A

6 feet (Table 10-1)

81
Q

A ________ may be installed when permitted for special conditions.

A

Drum trap (1004.0)

82
Q

Indirect waste pipes exceeding 5 feet in lenght shall be __________>

A

Trapped (803.0)

83
Q

The limits of a clothes washer standpipe above its trap is ____________ inches.

A

18 to 30 inches (804.1)

84
Q

Each drainage stack that exceeds 10 or more stories above the building drain shall be served by _____________.

A

a parallel relief stack (907.1)

85
Q

Indirect wast piping serving ice machines over 15 feet need not be larger in diameter than the drain outlet or tailpiece of the fixture, but in no case less than _______ inch(es).

A

3/4 inch (801.2.1)

Plumbing Code Training (5 decks)

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