問題一覧
1
A _____ may be installed with indirect waste.
Grease
2
Because of structural conditions, a 4-inch house drain is installed with a slope of 1/8 inch per foot. This installation will result in a (an) ____________.
reduction in fixture unit loading allowance
3
A ________ may be installed with indirect waste
drinking fountain
4
A seamless drawn-brass fixture tailpiece shall be __________.
20 B&S gauge
5
Water heater vents terminate above a roof surface at least __________ froma vertical wall.
12 inches
6
The distance from the center of a water closet to any side wall or partitions shall not be closet than ________.
15 inches
7
Drinking fountains may be installed with
indirect wastes
8
Joints at the roof around pipes shall be made watertights by the use of
flashings
9
A device to prevent backflow into the potable water system is called a
backflow preventer
10
That portion on a venting system that connects a water heater to a vent is a
vent connector
11
The minimum size waste pipe for a residential kitchen sink is ________.
2 inches
12
Each drainage stack that extends 10 or more stories above the building drain shall be served by _______.
a parallel vent stack
13
The minimum common horizontal waste pipe serving a bathtub, a lavatory, and a kitchen sink shall be at least _______.
2 inches
14
What kind of joint is not allowed in cast iron pipe?
threaded
15
The tailpiece for a lavatory shall not be less than _______.
1-1/4 inch
16
Unless serving sinks or urinals, cleanouts may be omitted on a horizontal drain line that is
less than 1.5 meters
17
The sizing of gas vents for category II, III, and IV shall be in accordance with ________.
the manufacturers instructions
18
When sizing a copper fuel-gas piping system that has an inlet pressure of less than 2 psi with a pressure drop of 0.3 inch w.c., the maximum cubic feet per hour of gas flow allowed through a 5/8 - inch O.D. ACR tube 75 feet in developed length is ________ .
27
19
The maximum length for a 1-1/2 - inch vent pipe is _______ .
60 feet
20
What is the minimum age requirement for an appointee to become a member of the Board of Master Plumbers?
Thirty years old
21
The minimum horizontal distance between a water supply well and the building sewer is ____________ .
50 feet
22
Soil and drain pipes located above food-handling establishments shall be subjected to a standing water test of not less than ______ feet.
10
23
A vent in a combination waste and vent system shall be approximately equal in area to one-half the ___________ .
cross-sectional of the drain pipe served
24
Concealed slip joint connection require a (an) _________.
12 x 12 access panel
25
The minimum size trap and trap arm for a kitchen sink is ________.
1-1/2 inches
26
Single-wall metal pipe shall be constructed of ______ not less than 0.0304 inch thick.
galvanized, sheet steel
27
Nonmetallic shower sub-pans or linings may be built up on the job site of not less than ___________.
three layers of 15 pound felt
28
The required clearance in front of a 3-inch cleanout is __________.
18 inches
29
Ferrous gas piping installed underground in exterior locations shall have at least _________.
1 foot of earth cover
30
The minimum clearance of listed appliances to any combustible wall or partitions is _________.
specified in listing or rating plate and NFPA 211 Standard
31
Leaks in gas piping shall be located by applying ________.
soapy water to the exterior of the pipping
32
A noncorrosive leak detection fluid
approved for use at least 12 inches belowground
33
Sheet metal, constituting a part of any vent connector, shall be at least ________.
0.0304 inches