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Master Plumbing > Water Supply & Distrubution > Flashcards

Water Supply & Distrubution Flashcards

1
Q

Consists of water service pipe, water supply line, water distributing pipe and the necessary branch pipes, fittings, values and all appurtenances required for the supply of potable water

A

WATER SUPPLY SYSTEM

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2
Q

also known as street main

A

WATER MAIN

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3
Q

water supply pipe for public or community use

A

WATER MAIN OR STREET MAIN

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4
Q

pipe from street water main to the bldg served

A

SERVICE PIPE

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5
Q

pipe carrying potable water from water meter or other source of water supply to a bldg or other point of use or distribution on the lot

A

BUILDING SUPPLY

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6
Q

shall also mean water service pipe

A

BUILDING SUPPLY

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7
Q

conveys potable water from bldg supply pipe to plumbing fixtures

A

WATER DISTRIBUTING PIPE

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8
Q

water supply pipe extending vertically to one full story or more

A

RISER

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9
Q

pipe between the fixture supply pipe and the water-distributing pipe

A

FIXTURE BRANCH

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10
Q

pipe connecting the fixture with the fixture branch

A

FIXTURE SUPPLY

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11
Q

what is the minimum depth of water service yard piping below the ground level

A. 0.3m
B. 3m
C. 0.03 m
D. 30m

A

A. 0.3m

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12
Q

water pipes shall not be run be laid in the same trench as bldg sewer or storm drainage unless bottom of water pipes is _______ above the top of the sewer or drain line

A. 0.3m
B. 3m
C. 0.03 m
D. 30m

A

A. 0.3 m

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13
Q

What is the minimum horizontal distance between sewer or drain line & water line

A. 0.03 m
B. 3m
C. 0.3 m
D. 30m

A

C. 0.3m

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14
Q

water pipes crossing sewer or drainage piping constructed of clay or materials, not approved for use within a slag shall be laid a minimum of ___________above the sewer or drainpipe

A. 0.03 m
B. 3m
C. 0.3 m
D. 30m

A

C. 0.3m

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15
Q

All small-sized malleable iron water fittings shall be _________

A. Non-presurrized
B. Galvanized
C. Non-galvanized
D. Pressurized

A

B. Galvanized

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16
Q

What is the maximum lead content in water pipes and fittings?

A. 2%
B. 80%
C. 75%
D. 8%

A

D. 8%

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17
Q

minimum water supply pressure that should be reached otherwise an elevated tank or booster pump must be installed

A. 103 kpa or 15 psi
B. 551 kpa or 80 psi
C. 55.61 kpa or 8.07 psi
D. 1033 kpa or 149.82 psi

A

A. 103 kpa or 15 psi

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18
Q

excess in pressure wherein pressure regulator preceded by an adequately sized strainer must be installed

A. 103 kpa or 15 psi
B. 551 kpa or 80 psi
C. 55.61 kpa or 8.07 psi
D. 1033 kpa or 149.82 psi

A

B.551 kpa or 80 psi

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19
Q

what is the maximum pressure setting of pressure relief value

A. 103 kpa or 15 psi
B. 551 kpa or 80 psi
C. 55.61 kpa or 8.07 psi
D. 1033 kpa or 149.82 psi

A

D. 1033 kpa or 149.82 psi

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20
Q

what is the minimum pressure for a group containing flush tanks

A. 103 kpa or 15 psi
B. 551 kpa or 80 psi
C. 55.61 kpa or 8.07 psi
D. 1033 kpa or 149.82 psi

A

C. 55.61 kpa or 8.07 psi

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21
Q

All pipe size determinations shall be based on ____________ of the reduced pipe pressure

A. 2%
B. 80%
C. 75%
D. 8%

A

B. 80%

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22
Q

multiplier to the elevation in meters to arrive at the loss in static pressure

A

9.79

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23
Q

What is the maximum velocity given in the appropriate installation standard

A. 0.3m/s
B. 3m/s
C. 0.03 m/s
D. 30m/s

A

B. 3m/s

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24
Q

this is a safety mechanism for thermal expansion which shall be installed but whenever bldg supply pressure is the theater than required relief valve pressure setting. Also a small tank used to protect closed water heating system and domestic hot water system from excessive pressure

A

EXPANSION TANK

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25
Q

height of end of pipe with relief valves above the ground

A. 0.15 m to 0.60 m
B. 0.15m to 0.30m
C. 0. 30m to 0.60 m
D. 0. 30m to 0. 90 m

A

A. 0.15m to 0.60m

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26
Q

CT & PRV

A

COMBINATION TEMPERATURE & PRESSURE RELIEF VALVE

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27
Q

may be used as multiplier to hot-water supply when combining hot and cold water demand

A. 2%
B. 80%
C. 75%
D. 8%

A

C.75%

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28
Q

what is the maximum distance of unions away from regulating equipment, water heater, conditioning tank, etc.

A. 0.03 m
B. 3m
C. 0.3 m
D. 30m

A

C. 0.3m

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29
Q

An unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet conveying potable water to the flood level rim of any tank, vat or fixture

A

AIRGAP, WATER DISTRIBUTION

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30
Q

minimum airgap

A. 25 mm
B. 38mm
C. 51 mm
D. 57 mm

A

A. 25 mm

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31
Q

AVB

A

ATMOSPHERIC VACUUM BREAKER

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32
Q

AVB must be placed _________above flood level rim

A. 150 mm
B. 151 mm
C. 152 mm
D. 153 mm

A

A. 150 mm

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33
Q

consists of a body, checking member, atmospheric opening

A. AVB
B. DC
C. RP
D. PVB

A

A. AVB

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34
Q

DC

A

DOUBLE CHECK VALVE BACKFLOW PREVENTION ASSEMBLY

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35
Q

PVB

A

PRESSURE VACUUM BREAKER BACKFLOW PREVENTION ASSEMBLY

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36
Q

RP

A

REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTION ASSEMBLY

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37
Q

consists of 2 independently acting internally or externally or loaded check valves, 4 properly located test cocks with connections, 2 isolation gate values

A. AVB
B. DC
C. RP
D. PVB

A

B.DC

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38
Q

consists of a loaded air inlet valve, internally loaded check valve, 2 properly located test cocks, 2 isolation gate valves

A. AVB
B. DC
C. RP
D. PVB

A

D. PVB

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39
Q

Consist of 2 independently acting internally loaded check valve, differential pressure relief valve, 4 properly located test cocks with connections, 2 isolation gage valve

A. AVB
B. DC
C. RP
D. PVB

A

C. RP

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40
Q

The minimum clearance at the bottom for maintenance of DC

A. 300 mm
B. 305 mm
C. 310 mm
D. 315 mm

A

B. 305 mm

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41
Q

PVB is placed _____ above all downstream piping and flood level rim of receptor

A. 300 mm
B. 305 mm
C. 310 mm
D. 315 mm

A

B. 305 mm

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42
Q

The minimum clearance at the bottom for maintenance of RP

A. 300 mm
B. 305 mm
C. 310 mm
D. 315 mm

A

B. 305 mm

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43
Q

this is placed above all downstream and inning and flooding receptor. This device closes the vent prior to the check opening and can be used indoors.

A

Spill-proof Pressure-Type Vacuum Breaker

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44
Q

Installations elevated more than _______ above the floor shall have permanent platform for testers and maintena A.nce persons

A. 1.52m
B. 152mm
C. 15.2mm
D. 0.152mm

A

A. 1.52mm

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45
Q

installation of atmospheric vacuum breaker above flood level rim

A. 1.52m
B. 152mm
C. 15.2mm
D. 0.152mm

A

B. 152mm

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46
Q

height of critical level above the overflow rim of water closet on the highest part of a urinal

A. 1.52m
B. 152mm
C. 15.2mm
D. 0.152mm

A

B. 152 mm

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47
Q

height of critical level of AVB of inlets to tanks, vats, sumps, swimming pool installed in the discharge side of the last valve

A. 1.52m
B. 152mm
C. 15.2mm
D. 0.152mm

A

B. 152 mm

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48
Q

height of AVB of water inlets to water supplied aspirations above the aspirator unit

A. 1.52m
B. 152mm
C. 15.2mm
D. 0.152mm

A

B.152 mm

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49
Q

height of AVB of potable water outlets with hose attachments above the highest point of usage located on the discharge side of the last valve

A. 1.52m
B. 152mm
C. 15.2mm
D. 0.152mm

A

B.152 mm

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50
Q

minimum airgap from supply outlet to top surface of the drainage

A

2 pipe diameter or 25 mm

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51
Q

minimum temperature for a backflow prevention for hot water to operate

A. 41.1 °C
B.42.2°C
C. 43.3°C
D. 44.4°C

A

C. 43.3°C or 110°F

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52
Q

height of ball well above fall opening of overflow pipe

A. 25 mm
B. 50 mm
C. 75 mm
D. 100 mm

A

A. 25 mm

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53
Q

separation of potable water from fluids or gases, with vented teak detection path

A

2 separate walls

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54
Q

water supply inlets without AVB must be protected by ________

A

AIR GAP

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55
Q

A stop valve placed at the connection of the water service pipe to the water main

A

CORPORATION COCK

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56
Q

A valve opened and closed by the fall and rise of an attached ball floating on the surface of the liquid

A

BALL COCK

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57
Q

Flow of water is cut off by a circular disc against machine-smoothed faces, at right angles to the direction of the flow. can only be fully opened or fully closed

A

GATE VALVE

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58
Q

Flow of liquid is cut off by a circular disc over and against the horizontal valve seat, parallel to the normal direction of flow of water. Can be halfway open or halfway closed

A

GLOBE VALVE

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59
Q

A valve that automatically closes to prevent the flow of liquid or gas in a reverse direction.

A

CHECK VALVE

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60
Q

What is the minimum bldg water service pipe?

A. 51mm
B. 102mm
C. 20mm
D. 19 mm

A

D. 19mm

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61
Q

An arbitrary quantity of the load-producing effects of water requirements

A

FIXTURE UNIT

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62
Q

What size of valves shall be of brass fitting?

A

At least 51mm

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63
Q

What size of valves shall have cast iron bodies or brass bodies?

A

Over 51mm

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64
Q

A valve used to control 2 or more openings shall be ________

A

Fullway gate valve

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65
Q

What is the type of vent fitting for gravity tanks??

A

Return bend

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66
Q

What device prevents gravity tanks from overflowing?

A

Float valve, float switch, or electrode-type water level control

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67
Q

Refers to the natural state of water

A

LIQUID

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68
Q

Refers to the solid state of water

A

ICE

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69
Q

Refers to the gaseous state of water

A

WATER VAPOR or STEAM

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70
Q

What are the three sources of water

A
  1. Rain water
  2. Natural surface water from streams and rivers
  3. Underground water
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71
Q

Refers to impurities in water which are carbon dioxide, hydrogen sulfide, methane, oxygen, and nitrogenous and organic compounds

A

ENTRAINED GASES

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72
Q

Refers to impurities in water which are calcium, magnesium, sodium, iron, manganese, and other carbonates and silicates, alkyl benzene sulfate and from detergents and synthetic organic from insecticides and pesticides

A

DISSOLVED MINERALS

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73
Q

Refers to impurities in water such as bacteria, algae, fungi, silt, protozoa, and other colloidal matters making the water colored and acidic

A

SUSPENDED & COLLOIDAL MATERIALS

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74
Q

Refers to impurities in water by entrainment of radioactive substances from mining or processing ores by wastes from industrial use of radioactive materials

A

RADIOACTIVE MATERIALS

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75
Q

Refers to a very shallow well with water taken from a water stratum composed of cervical limestones, sand, or gravel lying a few meters below the earth

A

SPRING WATER

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76
Q

What are the different types of individual well spring?

A

Bored wells
Dug wells
Driven wells
Drilled wells

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77
Q

This type of water distribution obtain its supply of water through a large intake pipe installed in the lake basin extended down the water. Water is drawn from the lake, to a receiving well by force of gravity, passing through filtration plant, pumped by centrifugal or piston pump into the water main with sufficient pressure to serve specific needs

A

DIRECT PRESSURE DISTRIBUTION

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78
Q

This type of water distribution employs a turbine pump mounted on top of the stand pipe extended down the well below the water table where water is drawn from a drilled distribution

A

INDIRECT PRESSURE DISTRIBUTION

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79
Q

Water distribution by means of gravity

A

OVERHEAD FEED SYSTEM

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80
Q

Water distribution where compressed air is used as delivery agent

A

AIR PRESSURED WATER DISTRIBUTION SYSTEM

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81
Q

Water distribution used on tall buildings that could not be served adequately by the street main. Employs a triplex pump to operate in sequence according to the volume of demand

A

DIRECT UPFEED PUMPING SYSTEM

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82
Q

Defined as the resistance between the molecules of water

A

FRICTION

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83
Q

Defined as the force required to move the water inside the pipe

A

PRESSURE

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84
Q

The pressure exerted by water at rest

A

STATIC PRESSURE

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85
Q

Refers to the pressure range measured over a period of 24 hours

A

NORMAL PRESSURE

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86
Q

An excessive water pressure can be minimized by a valve that will keep the pressure constant at 40 psi. What valve is this?

A

PRESSURE REDUCING VALVE

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87
Q

Refers to the maximum and minimum pressure at which proper function of the water supply system can be maintained

A

CRITICAL PRESSURE

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88
Q

Refers to the loss in rate of flow due to friction between the water and the walls of the pipe

A

HEAD LOSS BY FRICTION or FRICTION HEAD LOSS

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89
Q

Refers to the variations in pressure between the water main and the outlet end of the water service generally caused by friction

A

PRESSURE LOSS

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90
Q

Type of pump used on small water distribution system for elevating water in wells or other sources, produces pulsating movement

A

PISTON PUMP

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91
Q

Type of pump associated with tall building water distribution system, produces rotary motion

A

CENTRIFUGAL PUMP

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92
Q

Type of hot water distribution system commonly used in small residential houses

A

UP-FEED GRAVITY RETURN SYSTEM

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93
Q

Type of hot water distribution system generally used in building of extreme heights

A

OVERHEAD FEED AND GRAVITY RETURN SYSTEM

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94
Q

Refers to the mechanical device used to circulate hot water in the plumbing fixtures recommended for large buildings where difficulty of providing natural circulation of hot water is encountered

A

PUMP CIRCUIT SYSTEM

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95
Q

Small hot water tank generally made of copper or stainless steel sheet

A

RANGE BOILER

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96
Q

Large hot water tank made of heavy duty stainless steel sheet

A

STORAGE TANK

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97
Q

This type of valve protects hot water space heating system

A

STEAM RELIEF VALVE

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98
Q

This type of valve protects hot water supply system

A

TEMPERATURE AND PRESSURE RELIEF VALVE

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99
Q

Type of water heating system where water is confined within a system at low temperature

A

HOT WATER SPACE HEATING SYSTEM

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100
Q

Type of water heating system where water is not in a closed system and operates on a much higher temperature

A

HOT WATER SUPPLY SYSTEM

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101
Q

Also known as hydrologic cycle

A

WATER CYCLE

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102
Q

Describes how water is exchange through earth’s land ocean and atmosphere

A

WATER CYCLE or HYDROLOGIC CYCLE

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103
Q

The process of a liquid surface changing into gas and becomes water vapor

A

EVAPORATION

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104
Q

An instrument used to measure the amount of water vapor in air, in soil, or in confined spaces

A

HYGROMETER

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105
Q

The process where water vapor becomes liquid. This happens when either the air is cold to its dew point or it becomes so saturated with water vapor that it cannot hold anymore water

A

CONDENSATION

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106
Q

Refers to any liquid or solid water that falls to earth as a result of condensation in the atmosphere. This includes rain, snow, and hail

A

PRECIPITATION

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107
Q

Refers to the evaporation of water from plants occurring at the leaves

A

TRANSPIRATION

108
Q

Refers to the sum of all processes by which water moves from the land surface to the atmosphere

A

EVAPOTRANSPIRATION

109
Q

Refers to the transition from solid phase to the gas phase without passing through an intermediate liquid phase

A

SUBLIMATION

110
Q

The phase change from gas directly to solid with no intermediate liquid phase. The reverse process of sublimation

A

DESUBLIMATION OR DEPOSITION

111
Q

Source of water obtained from roofs and watershed

A

RAINFALL

112
Q

Source of water obtained from ponds, lakes, and rivers

A

NATURAL SURFACE

113
Q

Source of water obtained from below ground surface by means of mechanical or manual equipment

A

UNDERGROUND WATER

114
Q

A cased hole, usually vertical that is drilled in the earth to access water that is stored in voids called aquifers

A

WATER WELL

115
Q

These are underground layers of rock that are saturated with water that can be brought to the surface through natural spring or by pumping

A

AQUIFER

116
Q

A well that has a static water level above the adjacent ground surface. A well from which the water flows upwards and out of the well without pumping due to natural or artificially supplied underground pressure

A

FLOWING WELL

117
Q

Type of well that can be constructed with hand tools or power tools. This is the most common kind of well used for individual water supplies and can be dug to a depth of about 15 m (50 ft)

A

DUG WELL

118
Q

The simplest and usually the least expensive type of well. A steel drive-well point is fitted on one end of the pipe section and driven to the earth to a depth of 15 m (50ft)

A

DRIVEN WELL

119
Q

This refers to precipitation that is intercepted by plant foliage eventually evaporates back to the atmosphere rather than the ground

A

CANOPY INTERCEPTION

120
Q

This refers to the flow of water from ground surface into the ground

A

INFILTRATION

121
Q

This refers to water flowing vertically through the soil and rocks under the influence of gravity

A

PERCOLATION

122
Q

PD 1067

A

Water Code of the Philippines

123
Q

Water Code of the Philippines

A

PD 1067

124
Q

Refers to the maximum rate that a well can be pumped without lowering the water level, expressed in gpm

A

WELL YIELD

125
Q

Refers to a large natural or artificial lake used as a source of water supply

A

RESERVOIR

126
Q

Refers to a land area that channels rainfall to creeks, streams, and rivers and eventually to outflow points such as reservoirs, bays, and oceans

A

WATERSHED/DRAINAGE BASIN

127
Q

Refers to the underground boundary between the soil surface and the area where groundwater saturates spaces between sediments and cracks in rocks

A

WATERTABLE

128
Q

Refers to a well that taps into a confined aquifer, water rises above the top of the aquifer but does not reach the land surface

A

ARTESIAN WELL

129
Q

A process that involves the exchange of the hardness minerals in water, chiefly calcium and magnesium for sodium minerals

A

ION EXCHANGE

130
Q

That part of the water table which is lowered in the vicinity of the well

A

CONE OF DEPRESSION

131
Q

Refers to the decrease in the water level at and in the vicinity of the well

A

DRAWDOWN

132
Q

Is the measure of the total calcium, magnesium, iron, and other metallic elements that contribute to the hard feel of water

A

HARDNESS

133
Q

Type of hardness wherein there is the presence of bicarbonates of calcium and magnesium

A

TEMPORARY HARDNESS

134
Q

Type of hardness where there is the presence of non-carbonic salts (sulfates, chlorides, and nitrates)

A

PERMANENT HARDNESS

135
Q

Refers to the buildup of minerals and rust from inner linings of pipes caused by minerals like calcium carbonate and magnesium

A

PIPE SCALING

136
Q

Water hardness classified as soft

A

0-75 mg/L

137
Q

Water hardness classified as moderate

A

76-150 mg/L

138
Q

Water hardness classified as hard

A

151-300 mg/L

139
Q

Water hardness classified as very hard

A

over 300 mg/L

140
Q

Refers to the process of standard ion exchange water softener where the hardness (calcium and magnesium) is replaced with sodium

A

SODIUM ION EXCHANGE

141
Q

Caused by suspended insoluble matter including coarse particles that settle rapidly in standing water

A

TURBIDITY

142
Q

What is the unit of measurement for turbidity?

A

NTU (Nephelometric Turbidity Unit)

143
Q

What is the standard maximum turbidity for drinking water?

A

1 NTU

144
Q

Refers to the coarse particles in turbidity that settle rapidly when water is standing

A

SEDIMENT

145
Q

Refers to the particles that mostly remain in suspension in turbidity

A

SILT

146
Q

How much is the ph level of potable water according to WHO?

A

6.5-8.0 pH

147
Q

What is the ph level in neutral?

A

7 pH

148
Q

This is measured by ph level caused by the removal of minerals during evaporation, highly corrosive that can damage the plumbing system

A

ACIDITY

149
Q

Type of substance that was created from crushed white marble and is very high in calcium, used to treat acidic water

A

CALCITE

150
Q

It’s suitable to use for acidic water with ph level around 5.5 which neutralizes the carbon dioxide that’s present in the water

A

MAGNESIUM OXIDE

151
Q

Suitable to use for acidic water with ph level around 4.5 to 5.0 applied through a chemical injection

A

SODA ASH and CAUSTIC SODA

152
Q

Refers to the loss and eventual failure of metals and alloys from the electrochemical reaction between water and the pipe material

A

CORROSION

153
Q

Refers to the breakdown of the pipe material at a uniform rate over its entire surface by direct chemical attack

A

GENERAL CORROSION

154
Q

Refers to a breakdown of the pipe material which takes place on small areas of the surface usually at high rates and takes various forms

A

LOCALIZED CORROSION

155
Q

How much is the drinking water limits for nitrates?

A

10 mg/L

156
Q

Type of water received from a well, surface water, etc.

A

RAW WATER

157
Q

Type of water monitored and controlled for pH, algae, and other dissolved solids

A

TOWER WATER

158
Q

Filtered, chlorinated, and or otherwise treated to meet the local health departments standards for drinking water as well as the safe drinking water act

A

POTABLE WATER

159
Q

The relative term used to describe water mostly free from particulate matter and dissolved gases that may exist in the potable water supply

A

PURE WATER

160
Q

Refers to the conversion of a liquid into vapor that is subsequently condensed back to liquid form. This produces biopure water that is free from particulate matter, minerals, organics, bacteria, pyrogens

A

DISTILLATION

161
Q

This type of water is needed in the pharmacy, central supply room, and add other areas where there may be patient contact

A

BIOPURE WATER

162
Q

Type of water used in medical fields and laboratories

A

HIGH GRADE WATER

163
Q

A water purification process also known as deionization which produces high purity water that is free from minerals, most particulate matter, and dissolved gases

A

DEMINERALIZATION

164
Q

A water purification process that uses a semi-permeable membrane (synthetic lining) that filter out unwanted molecules and large particles such as contaminants and sediments like chlorine, salt, and dirt from drinking water; from higher to lower concentration

A

REVERSE OSMOSIS

165
Q

A water purification process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particle

A

FILTRATION

166
Q

Often the first step in water treatment where chemicals with a positive charge are added to the water, the positive charge neutralizes the negative charge of the dirt and other dissolved particles in the water

A

COAGULATION

167
Q

Refers to the gentle mixing of the water to form larger heavier particles

A

FLOCCULATION

168
Q

What is the most commonly used chemical for coagulation?

A

ALUMINUM SULFATE

169
Q

Water treatment of potable water where flocs settle to the bottom of the water and are removed by gravity settling and deposition

A

SEDIMENTATION

170
Q

Treatments for potable water where the passage of liquid through a porous medium suspended matter which did not settle by gravity and is used to remove the particular matter from water as a pretreatment

A

FILTRATION

171
Q

Material for filtration that is less effective in the removal of turbidity and bacteria

A

COARSE SAND

172
Q

Material for filtration that requires a shorter period between washings

A

FINE SAND

173
Q

A filtration system similar to reverse osmosis but with looser membrane that rejects most polyvalent ions while allowing the monovalent ions of sodium and chloride to pass throug

A

NANOFILTRATION

174
Q

Filtration system that is even looser and generally used to separate oil and water

A

ULTRAFILTRATION

175
Q

Filtration system design to remove coarse suspended particulates larger than 10 microns in sizes

A

DEEP-BED SAND FILTRATION

176
Q

Filtration system used to remove residual chlorine, chloramine disinfectants, dissolve organic, and major portion of naturally occurring dissolved organic material from municipal water supplies

A

ACTIVATED CARBON FILTRATION

177
Q

Filtration system where the flow of water in these filters is achieved by gravity only

A

GRAVITY FILTERS

178
Q

Filtration system where water is passed through a porous bed of filter medium, utilize the effluent either from plain sedimentation or directly from sources

A

SLOW SAND FILTER

179
Q

Refers to the water above the filter sand that provides hydraulic head for the process

A

SUPERNATANT

180
Q

Refers to the hypogeal biological layer consisting of biologically active microorganisms that break down organic matter. German for dirt cover

A

SCHMUTZDECKE

181
Q

Filtration system referring to a technique common and developed countries for treating large quantities of drinking water

A

RAPID SAND FILTER

182
Q

Refers to the filtered water that is passed upward to the filter at a relatively high flow rate of 10 to 20 gpm per square foot in order to clean the filter

A

BACKWASHING

183
Q

Filtration system more widely favored in industrial and commercial water conditioning applications. These units have an advantage in that they may be placed in the line under pressure eliminating the need to repump the water

A

PRESSURE FILTER

184
Q

How much is the chloride solution for systems allowed to stand for 24 hours?

A

50 mg/L

185
Q

How much is the chloride solution for systems allowed to stand for 3 hours?

A

200 mg/L

186
Q

How much is the chloride solution for systems allowed to stand for 3 hours?

A

200 mg/L

187
Q

Hot water tank that is 30 to 60 cm in diameter with a maximum of 180 cm length

A

RANGE BOILER

188
Q

Hot water tank that is 60 to 130 cm in diameter and maximum of 5 m long

A

STORAGE TANK

189
Q

Heat transfer that occurs through electromagnetic waves without involving particles

A

RADIATION

190
Q

Heat transfer that takes place within the fluid

A

CONVECTION

191
Q

Heat transfer that occurs between objects by direct contact

A

CONDUCTION

192
Q

Heats water with high voltage electric heating rods that run vertically through the tank. Water is heated starting at the center of the tank radiating outward

A

ELECTRIC WATER HEATER

193
Q

Heats water from gas-fired burner located at the bottom of the tank. Hot water starts at the bottom and rises upward where it is drawn off the top by a discharge tube

A

GAS WATER HEATER

194
Q

Refers to the magnesium and aluminum anode rods inside to protect exposed steel from corrosion. Also known as sacrificial rod

A

ANTI-CORROSION ANODE RODS

195
Q

The pipe that lets freshwater enter the water heater through the top of the tank

A

DIP TUBE

196
Q

This stops water from flowing into the water heater. It’s a separate component from the heater located outside and above the unit

A

SHUT-OFF VALVE

197
Q

A pipe suspended toward the top of the tank’s interior to allow the hot water to exit the water heater

A

HEAT-OUT PIPE

198
Q

This is a thermometer and temperature control device for water heaters

A

THERMOSTAT

199
Q

Located near the bottom of the exterior housing which makes it easy to empty the tank, to replace the elements, remove sediment, or move the tank to another location

A

DRAIN VALVE

200
Q

A valve installed on top of the hot water heater tank to relieve the buildup of dangerous temperature or pressure

A

TEMPERATURE-PRESSURE RELIEF VALVE

201
Q

How much is the hot water consumption for school (gallons per person per hour)?

A

2-3

202
Q

How much is the hot water consumption for office (gallons per person per hour)?

A

4-5

203
Q

How much is the hot water consumption for factories (gallons per person per hour)?

A

4-6

204
Q

How much is the hot water consumption for apartment (gallons per person per hour)?

A

8

205
Q

How much is the hot water consumption for hotels (gallons per person per hour)?

A

8-10

206
Q

How much is the hot water consumption for hotels (gallons per person per hour)?

A

8-10

207
Q

How much is the hot water consumption for residentials (gallons per person per hour)?

A

10

208
Q

How much is the average working load of hot water systems for school, office, and industrial type?

A

25%

209
Q

How much is the average working load of hot water systems for apartments and residences?

A

35%

210
Q

How much is the average working load of hot water systems for hotels and restaurants?

A

50%

211
Q

How much is the average working load of hot water systems for hotels and restaurants?

A

50%

212
Q

these are mechanical devices used to control, direct, and regulate the flow of water by opening, closing, or partially obstructing the flow

A

VALVE

213
Q

Type of gate valve with a single tapered disc thin at the bottom and thick at the top

A

SOLID-WEDGE GATE VALVE

214
Q

Type of gate valve with parallel faces dropped in a vertical position and force apart by a disc spreader

A

DOUBLE-DISC

215
Q

Type of globe valve with a pressure tight bearing between the disc and the seat recommended for cold water and any temperature service

A

CONVENTIONAL DISC GLOBE VALVE

216
Q

Type of globe valve with wide bearing surface producing good resistance to the cutting effects of scale dirt and other kind of foreign matter found inside the pipe

A

PLUG TYPE GLOBE VALVE

217
Q

Type of globe valve that does not fit into the seat opening but over it much as a bottle cap fits over the bottle opening

A

COMPOSITION DISC

218
Q

A faucet which operates by means of a round tapering plug perforated in one direction perpendicular to its axis and ground to fit a metal sheet

A

KEY COCK

219
Q

A faucet which operates by the compression of soft packing upon a metal seat

A

COMPRESSION COCK

220
Q

A faucet similar to compression cock but has a screw outside for connection of water hose

A

HOSE BIBB

221
Q

A faucet arranged to discharge water while they are held open by the hand and to close by a spring inside the faucet as soon as the pressure of the hand is removed

A

SELF CLOSING FAUCET

222
Q

Type of valve most commonly used in place of a gate valve increases where absolute bubble-free shut-off is required

A

BUTTERFLY VALVE

223
Q

A valve with a quarter turn design similar to a ball value with the ball replaced by a plug

A

PLUG VALVE

224
Q

Type of butterfly valve placed between pipe flanges

A

WAFER BODY / WAFER STYLE

225
Q

Type of butterfly valve which has protruding lugs that provide bolt holes matching those in the flanges

A

LUG BODY / LUG STYLE

226
Q

A valve located at the lower end of the pump used to prevent loss of priming the pump

A

FOOT VALVE / RETENTION VALVE

227
Q

a.k.a. retention valve

A

FOOT VALVE

228
Q

Type of check valve which permits straight-through flow when open

A

SWING CHECK VALVE

229
Q

Type of check valve used for gases or compressed air or in fluid systems where pressure drop is critical

A

LIFT CHECK VALVE

230
Q

Moves fluid by trapping a specified amount and displacing (forcing) the trapped volume into the discharge line

A

POSITIVE DISPLACEMENT

231
Q

Highly efficient because they can manipulate highly viscous fluids with higher flow rates as viscosity increases

A

ROTARY-TYPE POSITIVE DISPLACEMENT

232
Q

A simple kind of rotary pump that a pair of gears push the liquid

A

GEAR PUMP

233
Q

A kind of rotary pump where two screws turn against each other for pumping the liquid

A

SCREW PUMP

234
Q

What type of pumps are chain pumps and rope pumps?

A

LINEAR-TYPE POSITIVE DISPLACEMENT

235
Q

Transfer the liquid using one or more oscillating plungers, pistons, or membranes while valves limit fluid passage to the desired direction

A

RECIPROCATING-TYPE POSITIVE DISPLACEMENT

236
Q

Simple tool for pumping small volumes of liquid or gel manually

A

PISTON PUMP

237
Q

A reciprocating plunger forces the fluid by one or two open valves blocked by suction on the way back

A

PLUNGER PUMP

238
Q

Consists of a piston traveling up and down within a cylinder which is connected with a pipe extending down into the source

A

LIFT PUMP

239
Q

A centrifugal pump casing with a vertical connection to the shaft (perpendicular to the shaft and parallel to the impeller)

A

RADIAL SPLIT

240
Q

A centrifugal pump casing which is split along the center line of the shaft, direction is in line with the shaft

A

AXIAL SPLIT

241
Q

Centrifugal pump casing where in the direction is partly radial and partly axial

A

MIXED FLOW

242
Q

Also known as deep well turbine pumps which includes stages of stationary bowls and rotating impellers

A

VERTICAL PUMPS

243
Q

Centrifugal pump whose hydraulic components are flooded by the fluid handled. The motor runs a series of impellers which drive water up the pipe

A

SUBMERSIBLE PUMP

244
Q

A pump that needs to be filled with water before they can work, draws water up with suction

A

JET PUMP

245
Q

Automatic and requires no motor since they depend for operation upon water hammer that is surging back and forth in a pipe when suddenly brought to rest

A

HYDRAULIC RAMS

246
Q

Most common water meter for residential and small commercial properties where mechanical parts are displaced or moved as water flows through the meter’s main chamber

A

POSITIVE DISPLACEMENT WATER METER

247
Q

More common water meter in the commercial and industrial buildings with no moving parts but with an electromagnetic coil that generates a magnetic field and electrodes that capture voltage

A

ELECTROMAGNETIC FLOW METER

248
Q

Commonly used water meter in large commercial distribution system where turbine blades are housed in the chamber and rotates as the water flows through it

A

TURBINE FLOW METER

249
Q

Pipe marking for hydrogen

A

Black on yellow

250
Q

Pipe marking for flammable

A

Black on yellow

251
Q

Pipe marking for acetic acid

A

white on Brown

252
Q

Pipe marking for combustible

A

White on Brown

253
Q

Pipe marking for nitric acid

A

Black on Orange

254
Q

Pipe marking for toxic or corrosive

A

Black on Orange

255
Q

Pipe marking for fire

A

white on Red

256
Q

Pipe marking for other water

A

white on Green

257
Q

Pipe marking for nitrogen

A

White on Blue

258
Q

Pipe marking for compressed air

A

white on Blue

259
Q

ASTM prefix letter “A”

A

Iron & Steel material

260
Q

ASTM prefix letter “B”

A

Nonferrous metal material

261
Q

ASTM prefix letter “B”

A

Nonferrous metal material

262
Q

ASTM prefix letter “C”

A

ceramic concrete, and masonry material

263
Q

ASTM prefix letter “D”

A

Miscellaneous materials

264
Q

ASTM prefix letter “E”

A

Miscellaneous Subjects

265
Q

ASTM prefix letter “F”

A

Materials for specific applications

266
Q

ASTM prefix letter “G”

A

Corrosion, Deterioration, and Degradation of materials

Master Plumbing (15 decks)

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