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PLUMBING > Drainage > Flashcards

Drainage Flashcards

1
Q

Conveys only wastewater or liquid waste free or fecal matter

A

Waste Pipe

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2
Q

Used for ensuring the circulation of air in a plumbing system

A

Vent Pipe

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3
Q

A liquid seal which prevents the back flow or foul air or methane gas without materially affecting the flow of sewage or wastewater through it

A

Trap

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4
Q

Vertical main of a system of a soil, waste or vent piping extending through one or more storeys and extended thru the roof

A

Stack

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5
Q

Any part of the piping system other than a main, riser or stack

A

Branch

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6
Q

Part of the lowest horizontal piping of a plumbing system which receives the discharges from the soil, waste and other drainage pipes inside of a building

A

House/Building Drain

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7
Q

Extend from the house at a point 0.60 meters from the outside face of the foundation wall of a building to the junction with the street sewer

A

House/Building Sewer

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8
Q

Minimum slope or pitch of horizontal drainage pipe

A

2% or 20 mm

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9
Q

Used for lavatories, kitchen sinks, laundry tubs and urinals

A

Common P-Trap

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10
Q

Used for extreme conditions because resealing quality is greater

A

Deal Seal P-Trap

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11
Q

Used for fixtures such as slop sinks that are usually low in the ground, leaving a very little space for a foundation and a trap

A

Stand Trap

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12
Q

Used within the line of the house drain

A

Running Trap

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13
Q

The principal artery of the venting system to which vent branches are connected; Collecting Vent Line

A

Main Vent

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14
Q

Pipe installed to vent a fixture trap that connects with the vent system above the fixture served or terminates in the open air

A

Individual Vent

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15
Q

The portion of a vent pipe system that ventilates two fixture traps that discharge into a sanitary cross tee

A

Unit, Common or Dual Vent

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16
Q

Installed to ventilate the soil and waste pipe and the connecting branches rather than fixture traops

A

Relief Vent

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17
Q

Pipe connecting upward from a soil or waste stack below the floor and below the horizontal connection to an adjacent vent stack at a point above the floor

A

Yoke or By Pass Vent

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18
Q

Used when two or more fixture traps are installed on the horizontal soil or waste branch; Serves a battery of fixtures

A

Circuit Vent

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19
Q

Type of ventilation used on fixtures in a room away from partition

A

Looped Vent

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20
Q

Portion of the vent pipe system where liquid wastes regularly flows

A

Wet Vent

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21
Q

Extension of a soil or waste stack above the highest horizontal drain connected to the stack

A

Stack Vent

22
Q

Vertical vent pipe installed primarily for providing circulation of air to and from any part of the soil and waste of the drainage system

A

Vent Stack

23
Q

This can be attributed to inadequate ventilation of the trap and the subsequent minus and plus pressures inside the system

A

Trap Seal Loss

24
Q

Results of minus pressure in the drainage system

A

Siphonage

25
Q

Cause by plus pressure

A

Back pressure

26
Q

Considered a minor problem and less probable to drain the water inside the trap

A

Evaporation

27
Q

Wind velocity passing over the top of the soil pipe may affect the trap seal

A

Wind Effect

28
Q

Draining of water seal caused by foreign objects like thread or string suspended and extended over the outlet arm of the trap

A

Capillary Action

29
Q

Due to the effect of atmospheric pressure and or gravity

A

Retardation of Flow

30
Q

Watertight covered receptacle designed and constructed to receive the discharge of sewage from a building sewer

A

Septic tanks

31
Q

Solid organic matter that are denser than water and settle at the bottom of the septic tank

A

Sludge

32
Q

Lighter organic material that rise to the surface of the water

A

Scum

33
Q

Liquid content of sewage

A

Effluent

34
Q

Bacteria that relies on oxygen to survive

A

Aerobic Bacteria

35
Q

Bacteria that can survive in places without oxygen

A

Anaerobic Bacteria

36
Q

Storm water system that brings collected water directly to the water reservoirs; Separate System

A

Independent System

37
Q

Combines storm water with sanitary system

A

Combined System

38
Q

System that rainwater is collected in cisterns

A

Natural System

39
Q

Usually located along the entire perimeter of the roof

A

Gutter

40
Q

Located every 8 to 10 meters and at every corner of the roof

A

Downspout

41
Q

Drain designed to receive water collecting on the surface of a roof and to discharge it into a downspout

A

Stained or Roof drain

42
Q

At the bottom of the roof leader to direct rain water towards the nearest catch basin

A

Shoe

43
Q

Delivers water to the sewers in the street via gravity

A

Catch basin

44
Q

Connects to each catch basin

A

Storm line

45
Q

Carries only rainwater collected from the storm drain or from the streets

A

Storm sewers

46
Q

Manhole depth

A

2 to 3 meters

47
Q

Manhole diameter

A

0.6 to 1.2 meters

48
Q

Waste water with the exception of human waste

A

Gray Water

49
Q

Water plus solid and liquid human waste

A

Black water

50
Q

Rain water only

A

Storm Water

PLUMBING (2 decks)

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