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問題一覧
1
A general term for any vertical pipe that extends at least one story.
Stack
2
The drainage piping that conveys waste from the building drain to the public sewer or disposal system.
Building sewer
3
Water closets for public and employee use shall be elongated type.Water closets for public and employee use shall be elongated type.
True
4
Vertical and horizontal wet venting is permitted on the same floor level within a bathroom group.
True
5
Vents are sized by ___ served and developed length. To go longer the size must be increased
Dfu
6
Trap seals shall be
2 to 4 inches
7
water over 140 degrees will?
Get soft
8
Where vents pass thought the roof, the juncture must be made water tight with..?
Flashing
9
The pressure in vents should be the same as outside air
True
10
How many vents should terminate through the out door?
1
11
Distance from trap to vent is set by chart
Trap are length
12
Total fall of a trap arm shall not be more than the diameter of the trap arm.
True
13
what is the slop if the pipe for 4in?
1/8
14
all water valves must have?
Access
15
what side much hot water be on?
Left
16
All plumbing fixtures can be rough and hard
False
17
Nail plate much be installed when pipe in within ___ of edge
1 1/2in
18
The primary or principal artery to which branches are connected.
Main
19
A vent connecting to a drainage branch and venting two to eight traps in a battery.A vent connecting to a drainage branch and venting two to eight traps in a battery.
Circuit vent
20
Single wall vent is approved only with ___ of clearance from combustible material and not concealed.
6 inches
21
Air provided to replace exhausted air
Air makeup
22
A change involving extension, addition or change to arrangement, type or purpose of installation.
Alteration
23
heat required to raise 1 pound of water 1°F.
BTU
24
Natural gas is
Dry
25
Lp is
Liquid
26
Horizontal trap distance shall not exceed more than
30 inches
27
Cleanouts shall be installed every ___ or less
100ft
28
12.Clearance of 18 inches or more must be provided for rodding of 6 inch and smaller. Must provide 36 inches for 8 inch or larger.
Study
29
Do Chemical waste must be completely separated from the sanitary drainage system.
Yes
30
Air gap, reduced pressure principle, double check, pressure vacuum breaker, atmospheric vacuum breaker, hose bibb vacuum breaker.
Backflow prevention
31
AVB
Low hazards and siphonage only
32
PVB
High hazard and siphonage
33
A single vent serving as the vent for two fixture drains.
Common vent
34
A pipe that conveys only waste.
Waste pipe
35
Small copper going horizontal much be supported every?
6ft
36
Large copper tubing much be supported every ?
10ft
37
PVC/ABS must be supported every __ going horizontal?
4ft
38
CPVC 1” or less must be supported every ___ going horizontal
3ft
39
CPVC larger must be supported every ___ going horizontal
4ft
40
Interceptors and separators must be provided
To prevent from damaging the drainage system
41
Waste not requiring separation or treatment shall not be discharged into an
Interceptor