Module 1-4 Flashcards

1
Q

A valve in which the flow of liquid is
controlled by a rotating drilled ball that fits tightly against a resilient (flexible) seat in the valve body.

A

Ball valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Any group of two or more similar adjacent fixtures which discharge into a common horizontal waste or soil branch.

A

Battery of fixtures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The end portion of a pipe which for a short distance is enlarged to receive the end of another pipe which may be of the same diameter for the purpose of making a joint.

A

Bell or hub

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

A term that is synonymous with faucet, cock, plug, tap or spigot.

A

Bibb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

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

A

Branch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

A vertical length of soil or waste stack at least eight feet in height (a storey height), within which the horizontal branches from one storey or floor of the building or structure are connected to the stack.

A

Branch interval

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

That part of the lowest horizontal piping of a plumbing system which receives the discharge from soil, waste and other drainage pipes inside a building and conveys it to the building sewerhouse sewer.

A

Building drain/ House drain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

That part of the drainage system that extends from the end of the building drain and conveys its discharge to the public sewer, private sewer, individual sewage disposal system, or other appropriate point of disposal.

A

Building/ House sewer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

The first section of water supply piping in a building after the
water meter.

A

Building Supply Pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Plugging an opening with oakum, lead or other material that are pounded into the annular space. Also, the material pounded into the annular space.

A

Caulking/ Calking/ Cogging

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A fitting with a removable plate or plug that is placed in plumbing drainage pipe lines to allow access to the pipes for the purpose of cleaning and maintenance.

A

Cleanout

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Part of the roofing and/or area gutter system that takes water from a roof above-surface area to a storm drain or other disposal area or system.

A

Conductor/ leader

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Any physical connection or arrangement of pipes between two otherwise separate building water supply pipes or system tlnough which or by means of which
water supply may flow from one system to the other, the direction of flow depends on the pressure difference between the two systems

A

Cross connection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

The extended portion of a pipe that is closed one end to which no connections are made on the extended portion, thus permitting stagnation of wastewater or air therein.

A

Deadend

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The vertical portion of a rainwater conductor.

A

Downspout

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A pipe which carries ground and surface water, stormwater or wastewater into the building drainage system.

A

Drain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

The abbreviation for drainage, waste and vent.

A

DWV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

A valve on a water pipe by means of which water can be drawn from or held within the pipe. The valve is placed on the end of the pipe.

A

Faucet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The level in a fixture at which water begins to overflow the top or rim of the fixture.

A

Flood level

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The volume of water used by a plumbing fixture in a given amount of tune. Usually expressed in gallons per minute (gpm)

A

Flow rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The volume of water used by a plumbing fixture in a gi,·en amount of tune. Usually expressed in gallons per minute (gpm)

A

Flow rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

A device located at the bottom of a flush tank for flushing water closets and similar fixtures

A

Flush valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

A device which discharges a predetermined quantity of water to fixtures for flushing purposes and is actuated by direct water pressure.

A

Flushometer valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

A device which discharges a predetermined quantity of
water to fixtures for flushing purposes and is actuated by
direct water pressure.

A

Flushometer valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

A bathroom containing a water closet, a lavatory and a bathtub.

A

Full bath

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

A valve in which the flow of water is cut off by means of a circular disk, fitting against machine-smoothed surfaces at right angles to the direction of flow. The disk is raised or lowered by means of a threaded stem connected to the handle of the valve. The opening in the valve is usually as large as the full bore of the pipe.

A

Gate valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

A valve in which the flow of water is cut off by means of a circular disk that fits against the valve seat. The plane of movement of the disk is parallel to the normal direction of flow of water, which is turned through a tortuous passage to direct the flow normal to the face of
the disk.

A

Globe Valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

A bathroom containing a water closet and a lavatory.

A

Half bath

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

A bathroom containing a water closet and a lavatory.

A

Half bath

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

A faucet to which a hose may be attached.

A

Hose bibb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

A waste pipe that does not connect directly with the drainage system but conveys wastes by discharging into a plumbing fixture or receptacle, which is directly connected to the drainage system through an air break or gap into a trap, fixture receptor or interceptor, e.g. refrigerator waste pipe, drinking fountain waste pipe, etc.

A

Indirect waste pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

A condition contrary to sanitary principles or injurious to
health.

A

Insanitary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

A fixture designed for washing of the hands and face.

A

Lavatory/ wash basin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

The principal pipe to which the branches may be connected.

A

Main

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

A vertical vent pipe installed primarily for the purpose of providing circulation of air to or from any part of the building drainage system.

A

Main vent/ Vent stack

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

An opening constructed in any part
of plumbing system of sufficient
size for a person to gain access
thereto.

A

Manhole

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

The art and science of installing in buildings the pipes, fixtures and other apparatus for bringing in water supply and removing water and waterborne wastes.

A

Plumbing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

A receptacle attached to a plumbing system other than a trap in which water or wastes, may be collected or retained for ultimate discharge into the plumbing system.

A

Plumbing Fixture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

All water supply, drainage, and venting systems and all fixtures and their traps complete with their connections.

A

Plumbing system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Water that meets the standards of a government agency and is used for culinary, domestic and drinking purposes.

A

Potable water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

An outhouse or structure used for the deposition of excrement

A

Privy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

A P-shaped trap commonly used on most plumbing fixtures except for fixture having integral trap.

A

P trap/ 1/2 S trap/ Gooseneck

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

A common sewer directly controlled by public authority to which all abutters have equal rights of connections.

A

Public sewer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

A water supply pipe that extends vertically one full storey or more to convey water to fixture branches or group of fixtures.

A

Riser

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

The installation of parts of the plumbing system which can be completed prior to installation of fixtures or finishing. This includes drainage, water supply and vent
piping and necessary fixture supports.

A

Roughin-in

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Pipes installed to remove wastewater and waterborne wastes from plumbing fixtures and convey these to the sanitary sewer and other points of disposal.

A

Sanitary Drainage Pipes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

A loosely lined excavation in the ground, which receives the discharge of a septic tank and designed to permit the effluent from the septic tank to seep through the bottom and sides of the pit.

A

Seepage pit/ Cesspool/ Dry well

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

A loosely lined excavation in the ground, which receives the discharge of a septic tank and designed to permit the effluent from the septic tank to seep through the bottom and sides of the pit

A

Seepage pit/ Cesspool/ Dry well

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

A watertight receptacle which the discharge of sanitary plumbing system or part thereof, designed and constructed to retain solids, digest organic matter through a period of detention and to allow the liquids to discharge into the soil outside of the tank through a system of open jointed sub-surface piping or a seepage pit.

A

Septic tank

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Any wastewater containing animal or vegetable matter in suspension or solution and may include liquids containing chemicals in solution.

A

Sewage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

Any wastewater containing animal or vegetable matter in suspension or solution and may include liquids containing chemicals in solution.

A

Sewage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

A pipe or conduit for carrying sewage and wastewater.

A

Sewer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

A suction created by the flow of liquids in pipes; pressure less than the atmospheric pressure.

A

Siphonage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

A pipe that conveys the discharge of water closets or similar fixtures containing fecal matter, with or without the discharge of other fixtures to the building drain or building sewer.

A

Soil pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

A vertical pipe which conveys
the discharge of water closet,
urinal or fixtures having similar
function, with or without the discharges from other fixtures to the building drain or building sewer.

A

Soil stack

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

The end of a pipe which fits into a bell; also a word used synonymously with faucet.

A

Spigot

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

A general term used for any vertical line of soil, waste or vent piping.

A

Stack

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

A tank or pit below the normal grade of gravity receiving liquid wastes or sewage from which the waste.s or
sewage must be mechanically pumped to a higher receiving point.

A

Sump

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

A tank or pit below the normal grade of gravity receiving liquid wastes or sewage from which the wastes or
sewage must be mechanically pumped to a higher receiving point.

A

Sump

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q

A system of pipes, fittings, and other devices installed for the purpose of providing air circulation and creating balanced atmospheric condition within the system, thereby preventing siphonage and backpressure.

A

Ventilation system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q

A pipe or opening used for ensuring the circulation of air in a plumbing system and for relieving the negative pressure exerted on trap seals.

A

Vent pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
62
Q

A pipe or opening used for ensuring the circulation of air in a plumbing system and for relieving the negative pressure exerted on trap seals.

A

Vent pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
63
Q

The vertical vent pipe installed primarily for providing circulation of air to and from any part of the soil, waste of the drainage system.

A

Vent stack/ Main Vent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
64
Q

A pipe that conveys only liquid waste free of fecal matter. A waste pipe may be connected directly or indirectly depending on the type of fixture.

A

Waste pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
65
Q

A pipe which conveys potable water from the building supply pipe to the plumbing flxtures and other outlets.

A

Water distributing pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
66
Q

A portion of water supply pipe from the water main or other source of water before the water meter.

A

Water service pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
67
Q

A portion of water supply pipe from the water main or other source of water before the water meter.

A

Water service pipe

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
68
Q

A 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 and higher than the highest spill level of fixtures for preventing pressure changes in the stack.

A

Yoke vent

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
69
Q

Water has the ability to absorb heat without becoming much warmer itself. It has greater heat capacity than any other substance except anuuonia.

A

Heat capacity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
70
Q

Water has the ability to absorb heat without becoming much warmer itself. It has greater extent for this ability than any other substance except ammonia.

A

Heat capacity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
71
Q

The ability of liquids to stick to itself and pull itself together. Water possesses an extremely high amount of this ability, as molecules cling together so tightly that it can support objects heavier than itself.

A

Surface tension

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
72
Q

Water possesses the ability to dissolve almost any substance, thus it is considered a universal solvent.

A

Dissolving ability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
73
Q

Readily found in nature, as impounded from precipitation. Often contains impurities (physical, chemical, bacteriological, or radiological).

A

Natural water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
74
Q

Readily found in nature, as impounded from precipitation. Often contains impurities (physical, chemical, bacteriological, or radiological).

A

Natural water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
75
Q

Water that has undergone treatment ( either physical, biological, or chemical) to improve water quality.
Its process is an artificial means of obtaining chemically pure water.

A

Purified water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
76
Q

Water with any substance or material that affects the quality of water and in turn affects the health of an individual.

A

Contaminated water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
77
Q

Water with the presence of any foreign substance (organic, inorganic, radiological biological) which tends to degrade the overall quality so as to impair the potability of the water, and constitute a hazard to health.

A

Polluted water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
78
Q

Water with presence of elements such as Calcium (Ca), Magnesium (Mg), Iron (Fe), and Aluminum (al) which causes hardness. This is characterized by the difficulty of producing lather from detergents and the presence of scale deposits in pipes and heaters/boilers.

A

Hard water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
79
Q

Water without the presence of elements such as calcium and magnesium. This is characterized by the ease in producing lather from detergents and the absence of scale formation in boilers, heaters, and
pipes.

A

Soft water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
80
Q

Water from laundries, washbasins, sinks, showers, and bathtubs.

A

Grey water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
81
Q

Water plus human waste flushed out of toilets and urinals.

A

Black water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
82
Q

Water plus human waste flushed out of toilets and urinals.

A

Black water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
83
Q

Rain and surface runoff

A

Storm water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
84
Q

caused by the presence of
suspended materials (such as clay, silt, other forms of inorganic material plankton, or other
finely divided organic materials).

A

Turbidity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
85
Q

Temperature: In general, water supplied between _________ is preferable.

A

50° - 60° F (10- 16°C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
86
Q

Temperature: In general, water supplied between _________ is preferable.

A

50° - 60° F (10- 16°C)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
87
Q

Usually caused by detergent concentration. While the foam itself does not pose a serious health threat, it may indicate the presence of other pollutants associated with waste in the water.

A

Foamability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
88
Q

Caused by carbonate, bicarbonate, or hydroxide components. Testing for these components of water alkalinity is key to deciding which forms of water treatment to use.

A

Alkalinity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
89
Q

inhibits the cleaning action of soaps and detergents and deposits scales on the insides of hot water pipes and cooking utensils, thus wasting fuel and rendering utensils unusable. This is caused by calcium and magnesium salts and can be classified as either temporary (carbonate) or permanent (bicarbonate)

A

Hard water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
90
Q

Enumerate toxic substances in water

A

(As), barium (Ba), cadmium (Cd), cyanides (CN), fluoride (F), le.ad (Pb), selenium (Se), and silver (Ag).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
91
Q

It can enter water as it passes
through geological deposits formed by marine sediment, or as a result of contamination from pollution from sea water, brine, or industrial wastes.

A

Chlorides

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
92
Q

Copper can enter water through natural deposits, or copper pipit1g that contains corrosive water

A

Copper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
93
Q

Frequently present in groundwater.

A

Iron

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
94
Q

At high levels of concentration, it poses a threat to infants, as one of the causes of blue baby syndrome (methemoglobinenia), wherein the amount of oxygen in the blood is severely limited.

A

Nitrates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
95
Q

In shallow wells, nitrate concentrations can indicate seepage from deposits of ________.

A

Livestock manure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
96
Q

Possess laxative effects. Sulfates can enter groundwater through natural deposits of salts.

A

Sulfates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
97
Q

Sometimes enters groundwater in areas where it is in abundance. While not a major health threat, at concentrations above 5 mg/1, it can induce an undesirable taste.

A

Zinc

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
98
Q

It can be a mixture of surface run-off and groundwater. Sources include rivers, lakes, ponds, and itnpounding reservoirs.

A

Surface water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
99
Q

It can be a mixture of surface run-off and groundwater. Sources include rivers, lakes, ponds, and itnpounding reservoirs.

A

Surface water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
100
Q

The portion of rainwater that has percolated into the earth and formed underground deposits called aquifers (water-bearit1g soil-formations). As a source
of water, groundwater can by extracted in many different ways.

A

Groundwater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
101
Q

These are holes in the earth from which a fluid may be withdrawn using manual or mechanical means, such as a draw bucket, a pump, etc.

A

Wells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
102
Q

Water that flows into wells is called _____.

A

Groundwater

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
103
Q

Ground water reservoirs

A

Aquifers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
104
Q

Ground water reservoirs

A

Aquifers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
105
Q

The level at which water stands in a well that is not being pumped

A

Water table

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
106
Q

These can be constructed with hand tools or power tools, and can be dug to a depth of about 15 meters (50 feet) and can have the greatest diameter that a space may allow.

A

Dug wells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
107
Q

These are the simplest and usually
the least expensive. A steel drive-well point is fitted on one
end of the pipe section and driven
into the earth. The. drive point is usually 1 ¼ in. to 2 inches
(32 - 51 mm) in diameter. The point
may be driven into the ground to a depth of up to 15 meters (50 feet).

A

Driven wells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
108
Q

Dug with earth augers, are usually
less than 30 meters (100 feet) deep.
These are used when the earth to
be bored is free of boulders and will not cave in. The diameter ranges
from 2 to 30 inches. The well is
lined with either metal, vitrified tile, or concrete

A

Bored wells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
109
Q

These wells require more elaborate types of equipment, depending on the
geology of the site. As such, these can measure up to 300 meters (984 feet).

A

Drilled wells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
110
Q

It involves the raising and dropping of a heavy drill bit and stein. Having thus pulverized, the earth being drilled is mixed with water to form a slurry which is periodically removed. As drilling proceeds, a casing is also lowered (except when drilling through rock).

A

The Percussion ( or Cable Tool) method

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
111
Q

It utilizes a cutting bit at the lower end of the drill pipe; a drilling fluid ( or pressurized air) is constantly pumped to the cutting bit to aid in the removal of particles of earth, which are then brought to the surface. After the drill pipe is
withdrawn, a casing is lowered into position.

A

Rotary Drilling (Either Hydraulic or
Pneumatic)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
112
Q

It combines the percussion effect with the rotary drill bit.

A

down-the-hole pneumatic (air) hammer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
113
Q

This process can be employed to remove some suspended matter from water by allowing time and
inactivity of water to do the work of sorting out heavier suspended particles. Heavy suspended
materials settle at the bottom of vessels thereby rendering water clear or non-turbid.

A

Sedimentation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
114
Q

In this process a chemical namely aium (hydrated aluminum sulfate) is added to turbulent water. This
process removes suspended matter, along with some coloration

A

Coagulation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
115
Q

In aeration, the surface of the water is exposed to air as much as possible. This process can irnprove
the taste and color of water, remove iron and manganese, and decrease its corrosiveness. The possibilities for aeration are varied in its aesthetic applications such as spraying water into air, water
cascading into a spillway, flowforms or sculptural waterfalls designed to carry water in a rhythmic, pulsating pattern.

A

Aeration (Oxidation)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
116
Q

a powerful oxidizing and disinfecting method used to destroy bacteria, viruses and other
pathogenic organisms. This is done by passing dry air ( or pure oxygen) through a system of high voltage electrodes to produce ozone where 80% of the energy is converted into heat.

A

Ozonation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
117
Q

This common means of water treatment can remove some suspended particles, some bacteria, and some color. The following are some variations of filtration using different agents, forms and specific applications.

A

Filtration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
118
Q

It is a low maintenance method that is generally used in rainwater application. Devices used in this method should be cleaned as often as possible depending on the degree of turbidity of water. It can be cleaned by the removal of filters, which are either washed for reuse or may be discarded.

A

Slow sand filtration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
119
Q

It uses pressure to force water out of a containment
vessel such as tank. Sand is used as a filtering agent. Periodic cleaning is required as dirt accumulates over time and with the constant passage of turbid water. It may require the removal of sand filter or backwashing as a method of cleaning filters. This system of water filtration is commonly used in swimming pool application

A

Pressure Sand Filtration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
120
Q

It uses diatomite, a naturally
occurring siliceous sedimentary rock that easily crumbles into fine powder that is used as a filter
agent. This agent filters out particles of bigger size than the filter itself thus retaining suspended particles in a tank or containment vessel. The resulting product is a clean and dirt-free water.

A

Diatomaceous Earth Filtration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
121
Q

This kind of filter consists of a permeable porcelain unglazed tube called bisque that contains a
ring of enameled porcelain through
which water flows and filtered in the process. This is usually produced in small sizes for ready attachment to water faucets.

A

Porous Stone, Ceramic or Unglazed
Porcelain Filters (Pasteur Filters)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
122
Q

This method of filtration is a combined process used in removing iron and/or 1nanganese from
water. In this process chlorine chemically oxidizes iron or manganese which creates
precipitates. It kills iron bacteria which can form a slimy mass.

A

Fine Filtration by Chlorination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
123
Q

It uses granulated carbon which attracts large quantities of dissolved gases, soluble organics, and fine solids. Activated carbon works through a process known as adsorption whereby contarninant molecules are trapped inside the pore structure of the carbon. This is particularly effective in removing undesirable taste and odor in water, commonly used in domestic water purification.

A

Activated carbon filters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
124
Q

A widely used method in removing many types of dissolved or suspended chemical as well as
biological contaminants. Reverse Osmosis (RO) is also used in desalting seawater by reducing the mineral content in water. However, dissolved chemicals remain.

A

Reverse Osmosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
125
Q

This is the most important health-related water treatment. Chlorine affects the taste and odor of water, it is also effective in
removing less desirable tastes and odors.

A

Disinfection

126
Q

This is the most widely-used disinfectant in municipal water systems across most of the world.

A

Chlorine

127
Q

These compounds result from the reaction of ammonia with chlorine in water solution. They are commonly used in municipal water systems due to their superior stability over chlorine, however, they are not as strong as chlorine and thus have less bacteria-killing ability in comparison

A

Chloramines

128
Q

These compounds result from the reaction of ammonia with chlorine in water solution. They
are commonly used in municipal water systems due to their superior stability over chlorine, however, chloramines are not as strong as chlorine and thus have less
bacteria-killing ability in comparison

A

Chloramines

129
Q

Chlorine dioxide exhibits stronger disinfecting characteristics than chloramines, but there is little evidence of extensive use of the disinfectant.

A

Chlorine dioxide

130
Q

It exhibits stronger disinfecting characteristics than chloramines, but there is little evidence of extensive use of the disinfectant.

A

Chlorine dioxide

131
Q

This common relative of chlorine has been used for years for disinfecting drinking water of unknown quality. Unfortunately, certain kinds of gram-negative bacteria can develop resistance to ________.

A

Iodine

132
Q

It relies on evaporation to
purify water. It effectively removes inorganic compounds such as metals (lead), iron and nitrates. It also kills microorganisms such as
bacteria and some viruses.

A

Distillation

133
Q

A major advantage of fluoridating water is that children who drink fluoridated water have lower
rates of tooth decay. However, this benefit only applies to children, not adults, and in amounts
higher than those used in water treatment; its compound is toxic and can cause mottle teeth. As
such, while fluoridation units can be instilled into small water systems, its levels in the water supply must be carefully monitored

A

Fluoridation

134
Q

A mechanism of contaminant removal making use of the adsorption phenomenon, the act of
physical adhesion of molecules or colloids to the surface of the medium without chemical reaction

A

Adsorption

135
Q

This procedure is done by heating seawater, then
pumping water into a low pressure tank, where the water partially vaporize

A

Water desalination

136
Q

This procedure is done by heating seawater, then
pumping water into a low pressure tank, where the water partially vaporize

A

Water desalination

137
Q

Method for correction hard water

A

Zeolite process (ion exchanger)

138
Q

Method for correcting hard water

A

zeolite processs (ion exchanger)

139
Q

Method for correcting hard water

A

zeolite processs (ion exchanger)

140
Q

Method for correcting corrosive water

A

raising alkaline content

141
Q

Method for correcting color

A

chlorination or ozonation and fine filtration

142
Q

Method for correcting biological contamination

A

chlorination (NaHCl or Cl(g)) or Ozonation

143
Q

Method for correcting biological contamination

A

chlorination (NaHCl or Cl(g)) or Ozonation

144
Q

Method for correcting taste and odor

A

Filtration through activated carbon purifier aeration

145
Q

Method for correcting taste and odor

A

Filtration through activated carbon purifier aeration

146
Q

Method for correcting turbidity

A

filtration

147
Q

Method for correcting turbidity

A

filtration

148
Q

A cylindrical conduit or conductor usually cylindrical in cross section, of sufficient wall thickness capable of conveying or allowing the flow of liquid, gas, stearn or air through it.

A

Pipe

149
Q

These are standardized part or component usually pre-fabricated that is used to connect sections or segments of pipes, equipment, fixtures, trims, etc.

A

Fitting

150
Q

These are standardized part or component usually pre-fabricated that is used to connect sections or segments of pipes, equipment, fixtures, trims, etc.

A

Fitting

151
Q

The property of a metal that permits mechanical deformation by extrusion, forging, rolling, etc., without fracturing.

A

Malleability

152
Q

The resistance of a material to deformation by compression or indentation.

A

Hardness

153
Q

The resistance of a material to deformation by compression or indentation.

A

Hardness

154
Q

The property of a material which fractures under low stress without appreciable deformation.

A

Brittleness

155
Q

The property of a material which fractures under low stress without appreciable deformation.

A

Brittleness

156
Q

Property of a rnaterial described as being capable of being stretched or deformed without fracturing.

A

Ductility

157
Q

Material property which enables it to retain its appearance and integrity when exposed to the effects of the sun, wind, moisture, and changes in ternperature.

A

Weatherability

158
Q

Material property that refers to its resistance to being worn down by friction when rubbed against another object.

A

Abrasion Resistance

159
Q

Resistance of a surface/material to shock or impact applied in an instant, such as the impact of being dropped on the floor.

A

Impact Resistance

160
Q

Property of piping materials that evaluates its durability and resistance to wearing away as a result of chernical intervention (such as rusting).

A

Corrosion Resistance

161
Q

The degree of which a surface can resist the degrading effects of acid, such as porcelain or enamel.

A

Acid Resistance/Chemical Resistance

162
Q

The degree of which a surface can resist the degrading effects of acid, such as porcelain or enamel.

A

Acid Resistance/Chemical Resistance

163
Q

Rate of heat transfer by conduction.

A

Thermal Conductivity

164
Q

An index of material resistance to the transmission of heat

A

Thermal Resistivity

165
Q

The capacity of a material for withstanding open flame or providing protection from fire.

A

Fire resistance

166
Q

Ability of a piping material to withstand the effect of heat without causing deformation to the material.

A

Heat Resistance

167
Q

Resistance of a material to rupture caused by overpressure of air or liquid inside the pipe.

A

Pressure Resistance

168
Q

True or False: Vent piping does not necessarily require drainage-pattern fittings.

A

True

169
Q

A fitting used to change direction, especially in a sanitary drainage system. Fittings are available with changes at various angles.

A

Bend or sweep

170
Q

A pipe fitting or a preformed piece of tubing which provides a 180° change in direction.

A

Return Bend

171
Q

It is a fitting having a 90° change in direction with a very short radius. It is suitable for use in water supply systems.

A

Elbow

172
Q

An elbow having both ends internally threaded and of the same diameter.

A

Straight Elbow

173
Q

A malleable iron fitting for threaded pipe, having a 45° or 90° bend, with an inside thread on one end and an outside thread on the other.

A

Street or Service Elbow

174
Q

It is a fitting used to connect a branch pipe into a straight run of piping at a 45° angle. They are available with end connections that are of the same shape or with various combinations of reduced pipe sizes in any direction.

A

Wye or wye branch

175
Q

A single fitting which is a combination of a wye branch and a 1/8 bend; used in a drainage system in changing the direction such as from horizontal (branch) to stack, or from vertical (stack) to horizontal (house drain/ building drain).

A

Combination Wye Branch

176
Q

A single fitting which is a combination of a wye branch and a 1/8 bend; used in a drainage system in changing the direction such as from horizontal (branch) to stack, or from vertical (stack) to horizontal (house drain/ building drain).

A

Combination Wye Branch

177
Q

A one-piece fitting composed of 1/8 bend and wye branch where the branch inlet is parallel to the drum; used when two stacks are provided
where. one stack is used as a vent and the other for soil or waste or both soil and waste stack.

A

Upright Wye Combination

178
Q

A one-piece fitting composed of 1/8 bend and wye branch where the branch inlet is parallel to the drum; used when two stacks are provided
where. One stack is used as a vent and the other for soil or waste or both soil and waste stack.

A

Upright Wye Combination

179
Q

A combined fitting composed of a 1/8 bend and wye branch, but the branch inlet is provided with a spigot rather than a bell. It is used in lieu of a
ventilation system, usually installed at the uppermost portion of the vent stack or main vent

A

Inverted Wye Combination

180
Q

A fitting used in connecting a branch pipe into a straight run of piping at a right angle. Where flow characteristics are important, such as in the drainage system, code requires that a sanitary tee be used. Where flow is not a consideration, standard tees are permitted. They are available with end connections of all similar sizes or in various combinations of reduced pipe sizes in any direction.

A

Tee

181
Q

A tee having all openings the same size.

A

Straight Tee

182
Q

A malleable iron fitting for threaded pipe in the form of a tee having an outside thread on one end and an inside thread on the other and on the branch.

A

Street Tee or Service tee

183
Q

A tee used as fitting for a soil pipe designed with a slight curve in the. 90° transition so as to channel flow from a branch line toward the direction of the main flow.

A

Sanitary Tee

184
Q

A type of cross pipe used as fitting, designed with a slight curve in each of the 90° transitions so as to channel flow from branch lines toward the direction of the main flow.

A

Sanitary Cross Tee

185
Q

A bell-end tee, which has a branch that is tapped to receive a threaded pipe or threaded pipe fitting.

A

Tapped Tee

186
Q

A short internally-threaded section of pipe, used to join two pipes. They are provided with tiny ridges on the inside surface of the fitting to allow pipe to seat.

A

Coupling

187
Q

A short internally-threaded section of pipe, used to join two pipes. Couplings are provided with tiny ridges on the inside surface of the fitting to allow pipe to seat.

A

Coupling

188
Q

Has a similar application as a coupling but its ends are enlarged to provide additional mechanical strength.

A

Socket

189
Q

Has a similar application as a coupling but its ends are enlarged to provide additional mechanical strength.

A

Socket

190
Q

A type of fitting used to connect pipes
of different materials (such as galvanized steel pipes to plastic or synthetic pipes, the galvanized pipe being threaded and the plastic pipe having no threads), a type of teansition fitting.

A

Adapter

191
Q

A short length of pipe with external threads at each end; used to join couplings or fittings.

A

Nipple

192
Q

A short length of pipe with external threads at each end; used to join couplings or fittings.

A

Nipple

193
Q

A type of nipple with the entire length externally threaded.

A

Close nipple

194
Q

A type of nipple with the entire length externally threaded.

A

Close nipple

195
Q

A type of nipple having both externally threaded and midsection unthreaded.

A

Open nipple/ shoulder nipple

196
Q

A type of nipple having both externally threaded and midsection unthreaded.

A

Open nipple/ shoulder nipple

197
Q

An internally-threaded fitting used to close the end of a pipe.

A

Cap

198
Q

An internally-threaded fitting used to close the end of a pipe.

A

Cap

199
Q

An externally-threaded fitting usually with a square head; used to close the end of a pipe.

A

Plug

200
Q

A pipe fitting which is threaded on both the inside and the outside so that it can be used to connect two pipes ( or other fittings) of different sizes.

A

Bushing

201
Q

A pipe fitting which is threaded on both the inside and the outside so that it can be used to connect two pipes ( or other fittings) of different sizes.

A

Bushing

202
Q

A fitting with a projecting collar along the edge; used on installations requiring increased area coverage for added mechanical strength.

A

Flange

203
Q

A fitting with a projecting collar along the edge; used on installations requiring increased area coverage for added mechanical strength.

A

Flange

204
Q

A pipe fitting used to connect the ends of two pipes; neither of which can be turned. Consists of three pieces: the two end pieces (internally-threaded), which are tightened around the pipe ends to be joined), and a center piece, which draws the two end pieces together as it is rotated, effecting a seal.

A

Union or Union Patente

205
Q

A pipe fitting used to connect the ends of two pipes; neither of which can be turned. Consists of three pieces: the two end pieces (internally-threaded), which are tightened around the pipe ends to be joined), and a center piece, which draws the two end pieces together as it is rotated, effecting a seal.

A

Union or Union Patente

206
Q

A pipe fitting with inside threads, larger at one end than at the other.

A

Reducer

207
Q

A pipe fitting with inside threads, larger at one end than at the other.

A

Reducer

208
Q

A tapered coupling used for joining a pipe to another of larger size.

A

Increaser

209
Q

A fitting used to connect different types of pipes together; also a fitting that connects threaded pipes with non-threaded pipes, e.g. a male adaptor, a fe.male adaptor.

A

Adaptor

210
Q

Known technically as Gray Cast Iron Pipe, is a pipe fabricated from an alloy containing carbon and silicon.

A

Cast Iron Soil Pipe

211
Q

It is used in general building plumbing installation.

A

Service, SV Type (Standard)

212
Q

It is generally used in underground plumbing drainage installation.

A

Extra Heavy, XV Type

213
Q

It is generally used in underground plumbing drainage installation.

A

Extra Heavy, XV Type

214
Q

It uses compression coupling joint.

A

Hubless

215
Q

It uses compression coupling joint.

A

Hubless

216
Q

Lining with cement or coal tar enamel with external coatings composed of variety of materials reduce what properties of pipe?

A

corrosion by soils

217
Q

Available sizes for Bell (Hub) and Spigot, and Hubless. Bell and Spigot-types

A

3 to 15 inches (75 to 400 mm)

218
Q

Available sizes for hubless-types

A

1.5 to 10 inches (38 to 250 mm)

219
Q

Available sizes for hubless-types

A

1.5 to 10 inches (38 to 250 mm)

220
Q

To join hubless pipes, this fitting is needed

A

external compression coupling

221
Q

To join hubless pipes, this fitting is needed

A

external compression coupling

222
Q

Bell and spigot-types can be joined through __________

A

Caulking

223
Q

Pipe having a bell or hub on one end and a spigot on the other; uses caulking as connection or jointing method.

A

Standard Pipe (Std) Pipe

224
Q

One end of this pipe has a bell or hub and a plain end on the other; plain end can be joined with another plain end pipe using compression coupling joint.

A

Single Hub (SH) Pipe

225
Q

One end of this pipe has a bell or hub and a plain end on the other; plain end can be joined with another plain end pipe using compression coupling joint.

A

Single Hub (SH) Pipe

226
Q

Both ends have bells or hubs; may be cut into two resulting in two single hub pipes of different lengths.

A

Double Hub (DH) Pipe

227
Q

Both ends are plain; uses mechanical compression coupling joint

A

Hubless (H) Pipe

228
Q

Both ends are plain; uses mechanical compression coupling joint

A

Hubless (H) Pipe

229
Q

It is commonly called High-Silicon Iron Pipe, is a gray cast iron alloy containing between 14.5 - 15% silicon and small amounts of manganese, sulfur, and carbon.

A

Acid-Resistant (AR) Cast Iron Pipe

230
Q

It is commonly called High-Silicon Iron Pipe, is a gray cast iron alloy containing between 14.5 - 15% silicon and small amounts of manganese, sulfur, and carbon.

A

Acid-Resistant (AR) Cast Iron Pipe

231
Q

lt is manufactured in the same dimension as cast iron pipe but only in the extra-heavy weight range.

A

Acid-Resistant (AR) Cast Iron Pipe

232
Q

AR Cast Iron Pipe is available in two pipe ends

A

Bell (Hub) and Spigot or Hubless

233
Q

AR Cast Iron Pipe is available in two pipe ends

A

Bell (Hub) and Spigot or Hubless

234
Q

These are used for drainage of corrosive liquids and in exposed or underground applications where they may be subject to physical damage.

A

Acid-Resistant (AR) Cast Iron Pipes

235
Q

It is available either plain (black) or zinc-coated. The wall thicknesses range from Schedule 10 (lightest) to Schedule 80 (heaviest). The relationship benveen schedule and wall thicknesses depends on the pipe diameter.

A

Galvanized Steel (GS) Pipes and Fittings

236
Q

Made by drawing flat strips of steel through dies
to form round shapes, before welding an electric butt down the seam. Manufactured in 20-foot lengths.

A

Welded Pipe (Butt Welded and Continuous Welded Pipe)

237
Q

Made by piercing red-hot solid cylindrical billets of steel with a series of mandrels while passing the steel through rollers.

A

Seamless Pipe

238
Q

Where is galvanized Malleable Iron Fittings used?

A

water supply piping

239
Q

Where is galvanized Malleable Iron Fittings used?

A

water supply piping

240
Q

Where is standard Cast Iron Threaded Fittings used?

A

Vent Pipe

241
Q

Where is standard Cast Iron Threaded Fittings used?

A

Vent Pipe

242
Q

Where is cast iron recessed fittings used?

A

sanitary and storm drainage piping

243
Q

Where is cast iron recessed fittings used?

A

sanitary and storm drainage piping

244
Q

It is constructed of wrought iron, dipped in molten zinc, and may be identified by its dull, greyish color. Tests have indicated that this type of pipe resists acid wastes more than steel does, which is an iniportant factor to take into consideration when specifying plumbing materials.

A

Galvanized Wrought Iron Pipe

245
Q

It is constructed of wrought iron, dipped in molten zinc, and may be identified by its dull, greyish color. Tests have indicated that this type of pipe resists acid wastes more than steel does, which is an important factor to take into consideration when specifying plumbing materials.

A

Galvanized Wrought Iron Pipe

246
Q

A cast iron wherein the carbon has been reformed by magnesium inoculation, resulting in a material possessing high strength without changing its basic properties.

A

Ductile Iron (DI) Pipe

247
Q

Fabricated in a great variety of compositions, many of which are suitable for drainage and vents, as well as water supply systems - both hot and cold applications.

A

Plastic or Synthetic Pipe

248
Q

It is not affected by the heat and will remain permanently rigid. It is more resistant to solvents than thermoplastics.

A

Thermoset piping (Epoxy and Phenolic)

249
Q

It is not affected by the heat and will remain permanently rigid. It is more resistant to solvents than thermoplastics.

A

Thermoset piping (Epoxy and Phenolic)

250
Q

It softens when subjected to heat and re-hardens upon removal of heat. This process of heating; and re-hardening affects the strength of the pipe.

A

Thermoplastic

251
Q

It softens when subjected to heat and re-hardens upon removal of heat. This process of heating; and re-hardening affects the strength of the pipe.

A

Thermoplastic

252
Q

This pipe possesses excellent chemical resistance, good crush resistance and impact strength, is fire resistant (self-extinguishing), is functional up to 120°F in pressure systems and 180°F in non-pressure systems, such as Drain, waste, and Vent DWV applications

A

Polyvinyl Chloride (PVC)

253
Q

It can be utilized in hot and cold water applications. Functions at 180° F in pressure systems and at higher temperatures in low and non-pressure systems. CPVC requires a special kind of solvent cement used for other types of plastic welding

A

Chlorinated PVC

254
Q

It is used in pressure supply and drainage systems to carry water for uses such as golf course sprinklers, agricultural irrigation, underground gas distribution systems, industrial and chemical piping, corrosive fume ducting, and crude oil transportation.

A

PVC

255
Q

Possesses good chemical resistance and excellent impact strength, especially at low temperatures, and maintains rigidity at high
te,nperatures. Maximum functional temperature is 180°F for non-pressure systems. Also used in the production of LEGO’s iconic children’s building brick

A

Acrylonitrile Butadiene Styrene (ABS)

256
Q

Possesses good chemical resistance and excellent impact strength, especially at low temperatures, and maintains rigidity at high
te,nperatures. Maximum functional temperature is 180°F for non-pressure systems. Also used in the production of LEGO’s iconic children’s building brick

A

Acrylonitrile Butadiene Styrene (ABS)

257
Q

It is lightweight but brittle at low temperatures. Functions at a maximum temperature of 160° F. It is used in drainage and sewage systems, underground downspout drains, underground electrical conduits, septic tank absorption fields, and foundation drain

A

Rubber Modified Styrene (SR)

258
Q

Stronger and more rigid than polyethylene with a higher functioning temperature of 190°F. It is popular as a material for tubular products such as P-traps due to its high chemical resistance.

A

Polypropylene (PP) or PP-R

259
Q

Stronger and more rigid than polyethylene with a higher functioning temperature of 190°F. It is popular as a material for tubular products such as P-traps due to its high chemical resistance.

A

Polypropylene (PP) or PP-R

ethylene glycol is toxic and propylene glycol is not

260
Q

Strong, tough, and abrasive-resistant fluorocarbon material, with excellent
chemical resistance to most acids, bases, and organic solvents, and is ideally suited for handling wet or dry chloride, bromine, and other halogens;

A

Polyvinylidine Fluoride (PVDF) Kem Temp

261
Q

Strong, tough, and abrasive-resistant fluorocarbon material, with excellent
chemical resistance to most acids, bases, and organic solvents, and is ideally suited for handling wet or dry chloride, bromine, and other halogens;

A

Polyvinylidine Fluoride (PVDF) Kem Temp

262
Q

Excellent resistance to paraffins and
solvents, high resistance to surge. fatigue, non-toxic, and approved for use with potable water.

A

Polyacetal (acetal)

263
Q

Excellent resistance to paraffins and
solvents, high resistance to surge. fatigue, non-toxic, and approved for use with potable water.

A

Polyacetal (acetal)

264
Q

Its is used for process systems, solvent handling, agricultural chen1icals, crude oil, and natural gas disttibution systems. It is also used in manufacturing faucet bonnet and valve stems.

A

acetal

265
Q

Its is used for process systems, solvent handling, agricultural chemicals, crude oil, and natural gas distribution systems. It is also used in manufacturing faucet bonnet and valve stems.

A

acetal

266
Q

Functions in temperatures from -65° to 120°F in low pressure applications, and up to 200°F in non pressure applications. It is used in low-pressure water systems,such as golf course sprinklers, used to carry corrosive liquids and gasses as underground conduits and gas pipe reliners, in industrial and chemical laboratory drainage systems and underground gas piping.

A

Polyethylene (PE)

267
Q

It is used as a corrugated draitiage pipe for foundation drainage.

A

Polyethylene (PE)

268
Q

It is used as a corrugated draitiage pipe for foundation drainage.

A

Perforated Polyethylene (PE)

269
Q

Functions in temperatures from -65° to 120°F in low pressure applications, and up to 200°F in non-pressure applications.PE is used in low-pressure water systems,such as golf course sprinklers, used to carry corrosive liquids and gasses, as underground conduits and gas pipe reliners, in industrial and chemical laboratory drainage systems and underground gas piping.

A

Polyethylene (PE)

270
Q

Only flexible plastic tubing suitable for use with hot and cold water pressure systems.

A

Polybutylene (PB)

271
Q

Only flexible plastic tubing suitable for use with hot and cold water pressure systems.

A

Polybutylene (PB)

272
Q

True or False: PB possesses excellent chemical resistance to acids and alkali and it is suited for fuel oil, gasoline, or kerosene distribution systems.

A

False (not suited); known for micro-fracturing which makes it prone to leaking

273
Q

True or False: Polybutylene can be joined with heat fusion, flare, or compression fittings.It is solvent-weldable. Several plastic fitting designs are available for use with PB.

A

False (not solvent weldable)

274
Q

True or False: PB is rated to
function at 180° up to 100 psi;
higher temperatures can be tolerated with relatively small reduction in pressure

A

True

275
Q

It is used in water supply systems - hot and cold and sanitary ( drainage, waste, and vent) systems.

A

Copper Tube

276
Q

It is a seamless tube made from
almost pure copper (99.9%) and is available only in drawn soft form with plain ends.

A

Copper Tube

277
Q

Joining methods for copper tubes

A

Soldering or brazing

278
Q

True or False: Outside dimension for copper tube is always 1/8 inch bigger than the given size.

A

True

279
Q

True or False: Soft-temper copper tubes are generally used in exposed areas and resist dents caused by improper handling during
installation. Hard-temper copper tubes are used where flexibility is a consideration.

A

False; hard-temper in exposed areas and soft-temper where flexibility is a consideration

280
Q

Used in municipal and residential installation. Available in both
rigid and flexible forms with diameters of 1/4”, 3/8”, 3/4”, 1/2”, and 1”.

A

Type K (green)

281
Q

lighter than K - used often in residential water lines. K and L are
manufactured in hard (rigid 20’ lengths) and soft (60,’ 100’, and 200’; the latter in smaller sizes). Available in both rigid and flexible forms
in J/4” to I” diameters.

A

Type L (blue)

282
Q

lighter than K - used often in residential water lines. K and L are
manufactured in hard (rigid 20’ lengths) and soft (60,’ 100’, and 200’; the latter in smaller sizes). Available in both rigid and flexible forms
in J/4” to I” diameters.

A

Type L (blue)

283
Q

Hard (20’ lengths and under). Recommended for light domestic water lines, however it is not permitted under some city codes.

A

Type M (red)

284
Q

Rigid only and comes in lengths of 20’

A

Type DWV (Drain, waste, and Vent)
(yellow)

285
Q

50’ coils and rigid 20’ lengths.
Most refrigeration copper has moisture removed and ends sealed for better perfonnance of
refrigerants.

A

Type ACR (Air-conditioning and
Refrigeration)

286
Q

50’ coils and rigid 20’ lengths.
Most refrigeration copper has moisture removed and ends sealed for better perfonnance of
refrigerants.

A

Type ACR (Air-conditioning and
Refrigeration)

287
Q

True pr False: Flexible brass or soft aluminum pipe seems to be efficient for gas transmission to household heating and appliances.

A

True

288
Q

It is manufactured from an alloy containing 85% copper and 15% zinc. For drainage systems, tubing with plain ends is used.

A

Brass Pipe

289
Q

True or False: . Brass pipe
is generally used in local branch line.s and in ahernation
to match existing work.

A

True

290
Q

True or False: The advantages and
disadvantages of brass pipe are the same as those for copper tubing, except that brass can be used as a drain pipe under pressure.

A

True

291
Q

True or False: The advantages and
disadvantages of brass pipe are the same as those for copper tubing, except that brass can be used as a drain pipe under pressure.

A

True

292
Q

It is made from 99.7% pig lead; various alloys are available for
special applications. Lead pipes are used for connections to floor-mounted water closets, for
radioactive wastes, and for spec.ial laboratory corrosive wastes.

A

Lead Pipe

293
Q

True or False: Vitrified Clay pipe is commonly used in used in
underground public
sewers, house sewers, and
house drains. They are commonly used for storm and sanitary sewer
installations.

A

True

294
Q

True or False: Vitrified Clay pipe is commonly used in used in underground public sewers, house sewers, and house drains. They are commonly used for storm and sanitary sewer installations.

A

True

295
Q

True or False: Vitrified Clay Pipes are treated with glaze and fired in large kilns under temperatures of 2500°F to make it impervious to moisture.

A

True

296
Q

True or False: Vitrified Clay Pipes are treated with glaze and fired in large kilns under temperatures of 2500°F to make it impervious to moisture.

A

True

297
Q

True or False: abestos cement pipes are manufactured in sizes ranging from 3 to 36 inches in diameter for pressures of 50 to 200 pounds.

A

True

298
Q

It is composed of cement and asbestos fibers and formed under high pressure into a dense, tough material of good strength beand durability. This material offers excellent resistance to destructive elements, and its smooth inner surface promotes ease of flow.

A

Abestos Cement Pipes

299
Q

It is composed of cement and asbestos fibers and formed under high pressure into a dense, tough material of good strength and durability. This material offers excellent resistance to destructive elements, and its smooth inner surface promotes ease of flow.

A

Abestos Cement Pipes

300
Q

It is not subject to electrolytic action or to tuberculation (internal corrosion that increases friction
and impedes flow). However, this material is avoided in most plumbing applications due to the threats to human health asbestos poses.

A

Abestos Cement Pipe

301
Q

True or False: Abestos cement pipe is avoided in
most plumbing applications due to the threats to human health asbestos poses.

A

True

302
Q

True or False: Concrete pipes are mostly used for storm drainage applications but are sometimes used for water supply and sewage system installation.

A

True

303
Q

2 classifications of concrete pipe

A
  1. Reinforced Concrete Pipe
  2. Non-reinforced concrete pipe
304
Q

True or False: In concrete pipes, usually those with diameters more than 300 mm are reinforced

A

True

305
Q

It is seldom used for water supply because of its cost and also because of the difficulties encountered in
making joints when this material
is used.

A

Block Tin

306
Q

True or False: Since the block tin is
extremely soft, there is a real
danger that an inexperienced
plumber or pipefitter may permit the heat from the iron to destroy sections of the pipe.

A

True

307
Q

This material has appeared in the market in quantities only sufficient to augment, in some sections, the limited supply of galvanized iron and copper pipe.

A

Aluminum Pipe

308
Q

Two reasons why aluminum pipe is not extensively used

A

High cost; low resistance to chemical corrosion

309
Q

Two reasons why aluminum pipe is not extensively used

A

High cost; low resistance to chemical corrosion

310
Q

It can be claimed for sea water at a low cost tends to promote its use.

A

Magnesium pipe ; after Na, it is the most commonly found cation in oceans

311
Q

True or False: The magnesium tube or anode, used in most water heaters counteracts electrolytic action and thus allows the precipitation of lime upon the inner walls of the tank.

A

False (does not allow precipitation)