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問題一覧
1
Do fixtures need overflows?
Hell naw
2
A water closet shall not consume no more than?
1.28 or less
3
Color code for MLK
Red, blue, green
4
MLK meaning
Thin, Thick, Thickish
5
DWV color code
Yellow
6
Copper can be used for the gas line to go to the water heater only if there is no….
Sulfur
7
What is the minimum rise for a waterheat vent is?
5 ft
8
T&P pipe can be ?
Copper & cpvc
9
You cant have ___ the first 18 inches when connecting to waterheater
Pex
10
1/2 inch gas pipe must be supported every….
6 ft
11
1 1/4 or larger gas pipe must be supported every __ when going horizontal
10 ft
12
The vertical distance between the opening of the water supply and the flood level rim of a receptacle
Air gap
13
definition - A measurement of piping taken along the centerline of pipe and fittings
Developed length
14
How much clearance do you need for a toilet?
15 inches
15
A shower must have at least ___ inside dimensions
30 inches
16
the minimum slope for a pipe smaller than 3in is ?
1/4 per foot
17
What is the minimum size for a waterline ?
3/4
18
Water supply line should have a pressure no more than?
80psi
19
How much percentage of lead free be?
0.2 or less
20
definition - Access opening in the drainage system used to remove obstructions.
Clean out
21
definition- Parts of the plumbing system installed prior to the installation of fixtures
Rough in
22
definition -Drain pipe conveying sewage containing fecal matter
Soil pipe
23
definition - Distance from weir to top of the dip of the trap
Trap seal
24
definition- Pipe that makes an angle of 45 degrees or more with the horizontal
Vertical pipe
25
What should you do when pipe is passing or going through wall?
Sleeve it
26
Water closet screws and bolts shall be ?
Brass
27
You much have ___ to slip joints connections
Access
28
What type of vent is prohibited
Crown vent
29
What’s the minimum height for a washer box ?
18 inches
30
What’s the maximum height for a washer box?
24 inches
31
There should be a shut off no further than ___ from each appliance and shall be ready accessible in the same room
6ft
32
There should be a shut off in each building if the system serves more than one building?
True
33
You should always test the gas pipe with oxygen
False
34
You must have the name of company and master number on both sides of all services vehicles
True
35
You can install medical gas without a special endorsement
False
36
You must have the license number on all advertising and must be truthful
True
37
If false information is given to the board, the board may deny application, revoke license or take disciplinary action.
True
38
You don’t have to meet uniform plumbing code or the international plumbing code.
False
39
You must have 6 hours of continuing education to renew a license
True
40
TP line and the drain line can share the same pan
False
41
All vents and caps must be approved and installed according to manufacturer recommendations.
True
42
A water heater can be installed in a bedroom, bathroom or clothes closet.
False
43
If In a attic, must have ___ access to heater
24 inches
44
Electric water heaters wattage is on
Label
45
How high does the T&P line for a water heater need to be over the grade?
6 inches
46
What is the maximum temperature for a T&P valve?
210
47
Crown vented traps, Bell traps, drum traps and S traps are allowed?
False
48
A vent connecting individual vents with a stack vent or vent stack
Branch vent
49
Primary or principal pipe to which branches are connected
Main
50
A vertical vent pipe to provide circulation of air to and from the drainage system
Vent stack
51
You need a 12x12 access panel when a slip joint is connected
True
52
What is the minimum height for a 3in clean out?
18 inches
53
How long can pex be exposed to sunlight?
30 days
54
What is the distance of how many time you have to secure 1 inch pex?
32in or smaller
55
Description- two or three compartment sink drained by a continuous waste connected to one trap.
Combination fixture
56
Description- is a horizontal wet venting system for sinks and floor drains.
Combination Waste and Vent System
57
Description- is an elevation mark on a vacuum breaker setting the minimum elevation the device can be installed above the flood level rim of a fixture.
Critical level
58
Water closet should have ___ ball cock with a refill tube to refill the trap seal
Anti siphon
59
Joints in pvc are made with ___ and purple primer.
Solvent cement
60
You are required to have a shut off on the supply line on each fixture.
True
61
Hub and spigot joints in cast iron are made with oakum or hemp and lead. (Caulked joint)
Yes
62
When inspecting gas pipe, all joints should be exposed when inspecting?
Yes
63
1/2 in gas pipe should be supported every ?
6ft
64
Temperature and pressure relief valves must be in ___ of tank
Top 6 inches
65
LP=
Copper gas
66
definition - Any part of the piping system except mains, stacks or risers.
Branch
67
definition -is the lowest part of the drainage system which receives waste from soil and waste pipes and connects to the building sewer.
Building drain
68
definition - is a device that provides a water seal to prevent the passage of sewer gas and allow the passage of waste.
Trap
69
A pipe installed to vent one fixture trap. It may connect to the vent system above the fixture or terminate in the open air.
Individual vent
70
definition-Is a waste pipe that drains through an air gap to the drainage system.
Indirect waste
71
You much use mechanical compression joints or caulked when cast iron and plastic joints connects.
True
72
You should always water sealed tight fixtures when they are touching the wall or floor.
True
73
A vacuum breaker can take in ?
14.75 psi
74
definition -Any pipe that conveys wastewater in the drainage system.
Drain
75
is water that is sufficiently free of impurities to meet public health standards.
Portable water
76
What is the PSI for a temperature of 210 degrees ?
150psi
77
What is the PSI for 180 Degrees?
100psi
78
What is a shorter definition for Cross-linked Polyethylene?
Pex
79
Definition- The extension of soil or waste stack above the highest fixture served.
Stack vent
80
The upper rim of a fixture where water will overflow.
Flood level rim
81
When Copper less than 1 1/2 is going horizontal it must be supported every ???
6ft
82
When 1 1/2 or larger copper is going horizontal. When should you support it?
10ft
83
Who approves material?
Plumbing code
84
How much water does a water closet need to use when flushing?
1.6 gallons
85
What is the minimum size vent for pvc?
1 1/4
86
Gas pipe in 3/4 or 1 inch should be supported every?
8ft
87
1 1/4 or larger gas pipe should be supported every ____ when going vertical?
Every floor level
88
Flue pipe needs to be ____ above any part of the building within 10ft
3ft
89
The TP line can fall in a pan.
False
90
What is the minimum size for the TP line?
3/4
91
Gas water heater must have combustion air of?
12” from top and 12” from the floor
92
Which water line needs a shut off valve on a water heater?
Cold
93
If dissimilar material, must have ____ or approved connectors.
Dielectric union
94
If bottom feeds water heater, cold water must have ____ in a vertical position
Vacuum relief
95
Gas pipe to water heater can’t be concealed bushing, must use____
Bell reducer
96
The gas line for a water heater, you can use black iron or galvanized or the mix of two.
True
97
Is a backflow preventer that allows air to a vacuum being pulled on a system
Vacuum breaker
98
Drainage pipe shall be tested with a 10 foot head of water or 5 psi.
True
99
Pex to hose bib needs a?
Drop ear 90
100
Water hammer caused by high velocity, quick-closing valves, air tanks and pumps shall be controlled by….
Water arrestors