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PLUMBING CODE > ALL ABOUT NUMBERS > Flashcards

ALL ABOUT NUMBERS Flashcards

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1
Q

The water shall be kept in the pipe system or in the portion under test for at least _____ minutes before inspection starts

A

15 minutes

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2
Q

In a water test, each section shall be filled with water, but no section shall be tested with less than _____ m head of water.

A

3

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3
Q

Where the local water pressure is in excess of _____ kpa, an approved-type pressure regulator preceded by an adequately sized strainer shall be installed to reduce the pressure on the building side of the regulator to the required supply pressure.

A

551

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4
Q

The corresponding maximum trap loading pipe size for fixture unit 6 (answer in mm)

A

76

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5
Q

Support trap arms in excess of _____ feet in length as close as possible to the trap.

A

3

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6
Q

Closet rings shall be tightly fastened with corrosive resistant fasteners up to the floor with top surface _____ mm above finish floor.

A

6.4

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7
Q

When disposal fields are installed, a minimum of _____ of trench bottom shall be provided for each system exclusive of any hard pan, rock, clay, or other impervious formations

A

14 sqm

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8
Q

When the quantity of sewage exceeds the amount that can be disposed in a _____ meter of each line, a dosing tank shall be used.

A

152.4 m

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9
Q

Backflow prevention for hot water over ____ deg. C shall be a listed type assembly.

A

43.3

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10
Q

Cast iron fittings up to and including _____ mm in size when used in connection with potable water piping shall be galvanized.

A

51

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11
Q

Interceptors for sand and similar heavy solids shall have a water seal of not less than _____ mm deep.

A

152

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12
Q

Trenches shall be back-filled in thin layers of _____ m

A

0.3

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13
Q

(Vertical wall areas for rainwater piping size) For two adjacent walls, add _____ percent of the total wall areas to the roof area.

A

35

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14
Q

Before placing filter material or drain lines in a prepared excavation, all smeared or compacted surfaces shall be removed from trenches by raking to a depth of _____ mm.

A

25.4 mm

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15
Q

Each grease trap shall have an approved water seal of not less than _____ mm.

A

51

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16
Q

Minimum thickness of lead safe pan in mm

A

1.6

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17
Q

Cleanout size of 64 mm pipe. (answer in mm)

A

64

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18
Q

Estimated sewage flow rate for airports per employee

A

56.8 LpD

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19
Q

Each run of pipe which is more than _____ m in total developed length shall be provided with a cleanout.

A

15

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20
Q

No standpipe receptor for any clotheswasher shall extend more than _____ m nor less than 0.45 m above its trap.

A

0.8

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21
Q

The inlet compartment of any septic tank shall be not less than _____ of the total capacity of the tank.

A

2/3

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22
Q

The vacuum breaker shall be installed at the discharge side of the flushometer valve with the critical level at least _____ mm.

A

152

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23
Q

Retention time of commercial kitchen waste

A

2.5 hours

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24
Q

No underfloor cleanout in any residential occupancy shall be located more than _____ m from an access door, trap door or crawl hole.

A

6.1

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25
All septic tank covers shall be capable of supporting an earth load of not less than _____ when the maximum coverage does not exceed 9m.
14.4 kpa
26
An exposed and readily accessible drawn brass tubing trap, not less than Gauge ___ may be used on fixtures discharging domestic sewage but shall exclude urine.
17
27
The minimum size of any pump discharge or any discharge pipe from a sump having a water closet connected thereto shall not be less than _____ mm diameter.
50.8
28
Water closets shall be computed as _____ fixture units when determining septic tank size.
6
29
Every abandoned building (house) sewer, or part thereof, shall be plugged or capped in an approved manner within _____ m of the property line.
1.5
30
The sand interceptor shall have a minimum dimension of _____ m^2 for the net free opening of the inlet section.
0.2
31
For flush tank supplies, the available pressure may not be less than _____.
55.16 kpa
32
Estimated sewage flow rate for Day Camps (no meals served)
56.8 LpD
33
(Septic Tank) The liquid depth shall be not less than ______ nor more than _____.
0.6 m to 1.8 m
34
The corresponding maximum trap loading pipe size for fixture unit 3 (answer in mm)
38
35
Restaurant kitchen and other special-use sinks may be made of approved-type bonderized and galvanized sheet steel of not less than Gauge No. _____.
16
36
When seepage pits are used in combination with disposal fields, the filter material in the trenches shall terminate at least _____ from the pit excavation.
1.5 m
37
Lead pipe shall be supported at intervals not exceeding _____ m at centers with a rigid vertical back-up.
1.2
38
Fixture outlets shall not be connected to the horizontal excreta drainage piping system within _____ m of any vertical to horizontal change of direction of a stack containing suds-producing fixtures.
2.4
39
When disposal fields and/or seepage pits are installed in sloping ground, the minimum horizontal distance between any part of the leaching system and ground surface shall be _____.
4.6 m
40
Where there is exposure to skin contamination with poisonous, infectious, or irritating materials, provide 1 lavatory for each _____ persons.
5
41
No part of the perimeter of the leaching bed shall be more than ____ from a distribution drain line.
0.9 m
42
Lead bends and lead traps shall not be less than ____ mm in wall thickness.
3.2
43
Wiped lead joints shall have an exposed surface on each side of a joint not less than _____ mm.
19
44
The diameter of an individual vent shall not be less than _____ mm nor less than 1/2 the diameter of the drain to which it is connected.
32
45
The public sewer may be considered as not being available when such public sewer or any exterior drainage facility connected thereto is located more than _____ m from any proposed building or exterior drainage facility on any lot or premises thereat.
61
46
Fixtures that also serves as a vent for not to exceed _____ fixtures.
4
47
The arch or dome of seepage pit shall be an approved type one or two piece reinforced concrete slab of ____ minimum compressive strength.
2500 psi
48
Side walls of the septic tank shall exceed at least _____ above the liquid depth.
228.6 mm
49
Each pressure relief valve shall be an approved automatic type with drain and each such relief valve shall be set at a pressure of not more than _____ kpa.
1033
50
Vertical vent pipes for outdoor installations shall extend to at least _____ m distant from any part of the roof that is used for other purposes.
3
51
The width of a continuous and indelibly colored stripe in copper tubing.
6.4 mm
52
Water pipes crossing sewer or drainage piping constructed of clay or materials, not approved for use within a building, shall be laid a minimum of _____ m above the sewer or drainpipe.
0.3
53
Interceptors shall be of approved design and be of not less than _____ compartments.
2
54
Distance of Building or structures to Building Sewer (answer in meters)
0.60 m
55
In an air test, the air is forced into the pipe system until there is a uniform gauge pressure of _____ kpa or sufficient to balance a column of mercury 254 mm in height
34.5
56
The distance to vent of a trap arm 51 mm in diameter. (answer in meters)
1.52
57
Distance of Septic Tank to to Water Supply wells.
15.2 m
58
If the highest group of the fixtures contains flushometer valves , the pressure for the group should not be less than _____.
103.42 kpa
59
A _____ kpa air pressure may be substituted for the water test.
344.5
60
Minimum depth of filter materials under drain lines
304.8 mm
61
The minimum wall thickness of any steel tank shall be _____ mm.
2.8 mm
62
An additional cleanout shall be provided on a horizontal line with an aggregate offset angle of direction exceeding _____ degrees.
135
63
Each vent pipe or stack through roof shall extend its flashing all around and the stack vent shall terminate vertically not less than _____ m above the roof.
0.15
64
The yoke vent connection with the vent stack shall be placed not less than _____ m above the floor level.
1
65
Allowable slope of a pipe having a diameter 203 mm or larger is _____%.
0.5
66
Access to each septic tank shall be provided by at least two manholes _____ in minimum dimension.
508 mm
67
Water pipes and fittings with a lead content that exceed ___% shall be prohibited and not used in potable piping systems.
8
68
Depth of equivalent area of rectangular gutter = ____ x diameter.
0.392
69
Cleanouts may be omitted on a horizontal drain line less than _____ m in length unless such line is serving sinks or urinals.
1.5
70
Each vent opening shall terminate not less than _____ m above any openable window, door opening, air intake or vent shaft.
0.9
71
Tunnels shall have a clear height of _____ m above the pipe and shall be limited in length to 1/2 the depth of trench, with a maximum length of 2.4 meters.
0.6 m
72
Water pipe joints shall be installed not less than _____ m away from sewer line in both directions.
3
73
Limit stops shall be provided on such valves and shall be adjusted to deliver hot water with a maximum temperature of _____ deg. C.
48.8
74
Storage factor for fully equipped commercial kitchen- 16 hours operation
2
75
How many tests cocks does a Double Check Valve Backflow Prevention Assembly have?
4
76
Each seepage pit shall have a minimum sidewall of _____ below the inlet.
3 m
77
Such tailpiece or connections shall be as short as possible and in no case shall exceed _____ m long.
0.6
78
The developed length between the trap of a water closet or similar fixture measured from the top of closet ring (closet flange) to inner edge of vent shall not exceed _____ m.
1.8
79
No galvanized wrought iron or galvanized steel pipe shall be used underground and shall be kept at least _____ mm above ground.
152
80
Distribution drain lines in leaching beds shall be more than ____ apart on centers.
1.8 m

PLUMBING CODE (3 decks)

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