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WorksheetsNPCP 8 indirect waste piping,wet vent system and special waste
Total questions: 41
Worksheet time: 1hrs 2mins
No evaporative cooler, air washer or similar air conditioning equipment shall have any ____ in connection therewith, directly connected to any soil, waste and vent pipe.
drain pipe
vent pipe
Cooling and air-conditioning equipment may be separated by an airbreak, but all food equipment shall be separated from the drainage system by a ____
full airgap
full airbreak
The airgap for drainage shall be not less than ____ between the plumbing fixture, appliance or appurtenance outlet and the rim of the floor sink or receptor.
25 mm
50mm
No plumbing fixtures served by indirect waste pipes or receiving discharge therefrom shall be installed until first approved by the _____
Administrative Authority.
City Health
No Vent from indirect waste piping shall combine with any ____ connected vent, but shall extend separately to the outside air.
excreta
traps
Indirect waste pipes exceeding 1.5 meters but less than 4.6 meters length shall be directly trapped, but such traps need ____
not be vented
vented
Angles and changes of direction in such indirect waste pipes shall be provided with _____ to permit flushing and cleaning.
cleanouts
traps
No standpipe receptor for any clothes washer shall extend more than ______ above its trap.
0.8 meter nor less than 0.45 m
0.6 meter nor less than 0.3 m
No trap for any clotheswasher standpipe receptor shall be installed below the floor, but shall be roughed no less than ______ above the floor.
15 mm and not more than 45 mm
30 mm and not more than 60 mm
No indirect waste receptor shall be installed in any toilet room, closet, cupboard or storeroom nor in any other portioin of a building not for general use by the occupants thereof,
except that standpipes for clothes washer may be installed in toilet and bathroom areas when the clothes washer is _____
installed in the same room
not installed in the same room
Where water service connections are installed for clotheswasher, an approved method of _____ shall be provided.
waste disposal
trap and vent
Every indirect waste interceptor receiving discharge containing particles that clogs the receptor drain shall have a readily removable ____
beehive strainer
trap
Indirect waste connections shail be provided for ______from the water supply system; and no piping or equipment carrying wastes or producing wastes, or other discharges under pressure shall be directly connected to any part of the drainage system.
drains, overflows or relief vents
traps and interceptor
Appliances, devices or apparatus such as stills, sterilizers and similar equipment requiring water and waste and used for sterile material shall be drained through an _____
airgap
airbreak
When the above condensate is discharged to an exposed fixture tailpiece and trap. such tailpiece and trap may be ___
brass.
galvanise
_____ shall be installed with the flood level (FL) marking at or above the flood level of the sink or drainboard, whichever is higher.
airgaps
airbreak
Drinking fountains _____ installed with indirect waste
may be
shall not
No steam pipe shall be directly connected to any part of a plumbing or drainage system, nor shall any water having a temperature above ____ be discharged under pressure directly into any part of a drainage system.
60°C
90°C
Sumps, condensers or intercepting tanks constructed of concrete shall have walls and bottom not less than 102 mm thickness, and the inside shall be cement plastered not less than_____ in thickness.
13 mm
25 mm
Condensers constructed of metal shall be not less than No. ____
12 U.S.
9 U.S.
Standard gauge _____and all such metal condensers shall be protected from external corrosion by an approved bituminous coating.
2.77 mm thickness
3.5 mm thickness
Chemical or industrial liquid wastes likely to damage or increase maintenance costs on the excreta sewer system, detrimentally affect sewage treatment or contaminate surface or subsurface waters, shall be ______ to render them innocuous prior to their discharge into a drainage system.
pretreated
untreated
_____of pretreatment facilities shall be required by the Administrative Authority.
Detailed plans and specifications
general analysis
The ____ shall make and keep a permanent record of the location of all pipings and venting carrying chemical waste.
owner
building officials
No chemical vent shall be connected or intersect ____ for other services.
vents
traps
No ____ shall be discharged into the ground, local sewer or other disposal means without approval of the local Administrative Authority.
chemical wastes
indirect wastes
The provisions of this Section relative to materials and methods of construction, _____ to minor installations such as small photographic or x-ray dark rooms or small research or control laboratories where small amounts of adequately water-diluted chemicals are discharged
need not apply
need to apply
wet venting is limited to vertical drainage piping receiving the discharge from the ____
1 trap arm and 2 fixture unit
2 trap arm and 4 fixture unit
All wet-vented fixtures shall be on the same floor level, provided further, that fixtures with a continuous vent discharge into a wet vent shall be on the ____ as the wet-vented fixtures.
same level
other level
The vertical piping between any two (2) consecutive inlet levels shall be considered a _____
wet-vented section
dry vented section
Traps for island sinks and similar equipment shall be _____ the floor and may be vented by extending the vent as high as possible, but not less than the drainboard height and then returning it downward and connecting it to the horizontal sink drain immediately downstream from the vertical fixture drain.
roughed in above
roughed in below
_______for each CW & VS shall first be approved by the Administrative Authority before any portion of any such system is installed.
Plans and specifications
schematic planning
Each CW & VS shall be provided with a vent or vents adequate to assure free circulation of air.
Any branch more than ____ m length shall be separately vented in an approved manner.
4.6 meter
6 meter
The minimum area of any vent installed in a Combination waster & vent system shall be at least ____ the inside cross sectional area of the drain pipe served. The vent connection shall be downstream of the uppermost fixture.
one-half ( l/2)
one-half ( l/3)
Each waste pipe and each trap in any Combination waste & vent system shall be at least _____ than the sizes required
two (2) pipe sizes larger
three (3) pipe sizes larger
An accessible _____ shall be installed in each vent for the combination waste & vent system
drain
cleanout
___ of holy water and washwater at church altar service must not be discharged into the sanitary drainage system but disposed off directly into the ground.
"Sacrarium" waste
indirect waste
Water lifts expansion tanks cooling jackets, sprinkler system, drip or overflow pans or similar devices which discharge clear wastewater into the building drainage system shall discharge through an indirect waste by means of an ___
air gap
air break
Pipes carrying wastewater from swimming or wading pools., including pool drainage and backwash from filters, and water from promenade drains which serve walks shall be installed as an ____
indirect wastes
direct wastes
Where a pump is used to discharge waste pool water to the drainage system, the pump discharge shall be installed as an ____
indirect waste.
direct waste.
if discharged into the drainage system any evaporative cooler, airswasher, or similar air-conditioning equipment shall be drained by means of an _____
indirect waste pipe
direct waste pipe
