問題一覧
1
Where unstable soil conditions exist in an area to be trenches for a water piping installation, the trench shall be over excavated by a minimum of ___.
two pipe diameters
2
Back to back water closet connections to double sanitary tee patterns are permitted provided the horizontal developed length between the outlet of the water closet and the connection to the double sanitary tee is a minimum of ____ inches.
18
3
A 3 inch waste stack vent may be used for a maximum total discharge to the stack of ____.
24 dfu
4
In circuit venting, the maximum slope of the vent section of the horizontal branch drain shall be ____ units vertical in 12 units horizontal.
1
5
A fixture trap vent shall be installed a minimum of ___ from the trap weir.
two pipe diameters
6
Stack type air admittance valves shall be located a minimum of ___ inches above the flood level rim of the highest fixture being vented.
6
7
Copper-alloy clean out plugs shall conform to which of the following standards?
ASTM A74
8
The slope of a horizontal combination waste and vent pipe shall NOT be greater than ___ percent.
4
9
When horizontal ducts are used to provide outdoor combustion air to gas-fired appliances located in buildings through two permanent openings, each opening shall have a minimum free area dimension of no less than ___ of the total input rating of all appliances located within the space.
1 Sq in per 2000 btu/h
10
Drinking water treatment units must meet which of the following requirements?
all listed are acceptable
11
Stainless steel plumbing fixtures shall conform to which of the following standards?
ASME A 112.19.3/CSA B45.4
12
A minimum ___ gpm capacity sewage pump shall be provided when the diameter of the discharge pipe is 2 inches.
21
13
A forced sewer test shall pressurize the pipe to not less than ___ psi greater than the pump rating and shall maintain the pressure for no less than ___ minutes.
5, 15
14
The temperature rating for a fire sprinkler shall not be less than ___ and no more than ___. When located under a skylight the minimum temperature shall not be less than ___.
135f, 225f, 175f
15
Where do I find the required capacities at the point of outlet discharge for fixtures?
water supply and distribution table P2903.1
16
What is the maximum number of fixture units allowed to be connected to a 3 inch building drain branch sloped at 1/4 inch per foot?
42
17
Water distribution piping within dwelling units shall have a minimum pressure rating of _____ at 180F.
100
18
The horizontal distance from a fixture outlet to the trap weir shall be a maximum of ____ inches measured from the centerline of the fixture outlet to the centerline of the trap weir.
30
19
Backwater valves shall comply with which of the following standards?
all listed are correct
20
Floor drain plumbing fixtures shall conform to which of the following standards?
ASME A 112.6.3
21
A backflow preventer plumbing device with intermediate atmospheric vents shall conform to which one of the applicable standards?
ASSE 1012
22
A hose-connection backflow preventer plumbing device shall conform to which one of the applicable standards.
ASSE 1052
23
Solder and fluxes used in potable water supply systems shall have a lead content not greater than ___ percent?
0.2
24
Backfill shall be free from discarded construction material and debris. Backfill shall be free from rocks, broken concrete, and frozen chunks until the pipe is covered by no less than ___ inches of tamped earth.
12