SPDI 1 Flashcards
(119 cards)
1
Q
The minimum size of a water service pipe is _____.
A
19 mm
2
Q
The smallest diameter pipe that can be installed in a DWV system is _____.
A
1 1/4” or 32 mm (for wash basin (lavatory single) or drinking fountain (31 mm in RNPCP)
3
Q
The distance between a water heater and the union on the water lines shall not be more than _____.
A
12”
4
Q
A pH below 7 indicates _____.
A
Acidic
5
Q
pH above 7
A
basic or alkaline
-all alkali are bases
- all bases are not alkali
6
Q
pH 7
A
neutral (WATER)
7
Q
The dip tube on a cold-water supply should terminate _____ above the bottom of the tank.
A
Correct answer: 8”
Source: Audel
8
Q
The type of valve incorporated in corporation stop.
A
Correct answer: Gate Valve (The corporation stop shuts the flow on or off)
9
Q
The hot water system that is an efficient type, generally used in building of extreme heights.
A
Correct answer: Overhead Feed and Gravity Return System
Source: PDE by Max Fajardo
10
Q
cold water supply system that supplies water to the plumbing fixtures by means of gravity
A
Overhead Feed System
11
Q
cold water supply system
innovation of the air pressurized water distribution
A
Direct Up-feed Pumping System
12
Q
cold water supply system
commonly used in small residential houses
A
Up-feed and Gravity Return System
13
Q
This tank holds a salt solution that flushes the mineral tank, replacing calcium and magnesium ions with sodium.
A
Correct answer: Brine Tank
14
Q
process for curing hardness
A
Ion Exchanger
15
Q
tank containing small beads of synthetic resin for curing hardness
A
Mineral/Resin Tank
16
Q
The following are physical traits of water except _____.
A
Correct answer: Dissolved Oxygen
Source: element.com
17
Q
the level of free, non-compound oxygen present in water or other liquids. It is an essential parameter in assessing water quality because of its influence on the organisms living within a body of water.
A
Dissolved Oxygen
18
Q
The potable water system or part thereof shall be filled with water-chlorine solution containing not less than ____ of chlorine and allowed to stand for 3 hours.
A
Correct answer: 200 ppm
Source: Uniform Plumbing Code
19
Q
The potable water system or part thereof shall be filled with water-chlorine solution containing not less than ____ of chlorine and allowed to stand for 24 hours.
A
50 ppm or 50 mg/L.
20
Q
Where is a stormwater outfall typically found?
A
Correct answer: rivers
Additional info:
- Stormwater outfall is a discharge point of stormwater into a larger water body
21
Q
The presence of ____ causes bad taste and odor in water.
A
Correct: Algae
Source: PDE by Max Fajardo
22
Q
causes Hardness
A
Calcium and Magnesium
23
Q
causes Corrosion
A
Carbon Dioxide
24
Q
A mechanical device used to circulate hot water to the plumbing fixtures. Recommended for large building where difficulty of providing natural circulation of hot water is encountered
A
Correct answer: Pump Circuit System
Source: PDE by Max Fajardo
25
Hot water consumption for factories
Correct answer: 4 to 6
Source: PDE by Max Fajardo
26
Hot water consumption for OFFICE
4 to 5 gpph
27
Hot water consumption for APARTMENTS
8 gpph
28
Hot water consumption for HOTELS
8 to 10 gpph
29
The water which comes from lavatories, floor drains, laundry tubs is referred to as _____.
Correct answer: Gray Water
30
the wastewater from bathrooms and toilets that contains fecal matter and urine.
Black Water
31
When the well is excavated in the confined aquifer, and the water in the well reach over the water table but not on the surface of the earth. Such a well known as an _____.
Correct answer: Artesian Well
Source: theconstructor.org
32
When a well is excavated in the confined aquifer, and the water is flowing over the well or on the surface of well. Such a well called as flowing well.
Flowing well
33
require more elaborate equipment of several types, depending on the geology of the site. They measure up to 300 m (984 ft).
Drilled well
34
dug with earth augers, usually less than 30 m (100 ft deep)
Bored well
35
What is a treatment for water acidity?
Correct answer: Passing through marble filter
36
a method to remove turbidity
Filtration
37
a method to remove color in water
Manganese Zeolite Filtration
38
type of disinfection
Chlorination
39
Size of downspout for a 350sqm roof area in a place with prevalent rainfall rate of 102 mm.
Correct answer: 102 mm
Source: Table 11-1
40
In areas with high rainfall intensity, which driveway material can be prone to flash flood?
Correct answer: asphalt
- asphalt and concrete limits water absorption, increasing surface run-off
41
When copper and steel contact each other, especially when dampness is present, a chemical action called _____ occurs.
Correct answer: Electrolysis
Source: Audel
42
This level of water supply is also referred as communal faucet system.
Correct answer: Level 2
43
This level of water supply is also referred as Point Source
Level 1
44
This level of water supply is also referred Waterworks Systems or Individual House Connections
Level 3
45
What might be the reason why riprap is placed at the end of a storm drainage pipe?
Correct answer: to dissipate the energy of water
Additional info:
- riprap is provided to slow down the water as it exits the pipe
46
The pressure required to test water piping.
Correct answer: 150% working pressure
Source: RNPCP, Chapter 6
47
The transition from the solid phase to the gas phase without passing through an intermediate liquid phase.
Correct answer: Sublimation
48
the phase change from gas directly to solid, with no intermediate liquid phase
Desublimation or deposition
49
process of a liquid's surface changing to a gas
Evaporation
50
Most practical pump used for hot water system
Correct answer: Centrifugal pump
Source: PDE by Max Fajardo; ksb.com; various websites
51
commonly used for pumping high viscosity fluids such as oil, paints, resins or foodstuffs.
Gear Pump
52
a device that moves water from your basement to the outside of your home
Sump Pump
53
a type of positive displacement pump where the high-pressure seal reciprocates with the piston
Piston Pump
54
Water Code of the Philippines
Correct answer: PD 1067
55
PD 1096
National Building Code of the Philippines
56
PD 856
Sanitation Code of the Philippines
57
PD 1185
Old Fire Code of the Philippines
58
Characterized by a low Reynold number. This occurs when the fluid flows in infinitesimal parallel layers with no disruption between them.
Correct answer: Laminar Flow (or Streamline)
59
Agency that set the criteria for the quality of drinking water from meteoric surface or underground sources.
Correct answer: National Standards for Drinking Water
Source: PD 1096, Chapter 9
60
NWRB
National Water Resources Board- manages and regulates all water resources and services
61
accredited by DOH shall perform drinking-water quality examination for regulatory purposes
DOH- Department of Health- Laboratories
62
agency responsible for management, development, and proper use of the environment and natural resources; agency that permits the connection to private sewage disposal system
DENR- Department of Environment and Natural Resources
63
Which process is mostly associated with purification of water?
Correct answer: Evaporation
Additional info:
- impurities are left behind once water turns to vapor
64
85 Kpa = _____ feet
Correct answer: 28 FEET
Additional info:
1 Kpa= 0.145 psi
1 psi= 2.31 feet
65
Heat transfer occurs through electromagnetic waves without involving particles.
Correct answer: Radiation
Source: byjus.com
66
the heat transfer takes within the fluid
Convection
67
heat transfer occurs between objects by direct contact
Conduction
68
In a gas water heater, the purpose of the small hole drilled in the dip tube near the top is _____.
Correct answer: to break siphonic action
Source: Audel
69
Pipes installed to provide flow of air to or from drainage system or to provide a circulation of air within such system to protect trap seals from siphonage and backpressure
Correct answer: Vent System
Source: RNPCP, Chapter 2
70
a pipe or opening used for ensuring the circulation of air in the plumbing system
Vent Pipe
71
the vertical vent pipe installed primarily for providing circulation of air to and from any part of the soil, waste of the drainage system
Vent Stack
72
a pipe connecting upward from a soil or waste stack below the floor and below horizontal connection to an adjacent vent stack
Yoke Vent
73
Hepatitis B can be transmitted through _____.
Correct answer: Body fluid contact
Source: cdc.gov
Additional info:
- Hepatitis B is not spread through sneezing, coughing, hugging, or breastfeeding
- Hepatitis B virus is found in saliva, but it is not believed to be spread through kissing or sharing utensils
- Hepatitis B can only be transmitted through skin if there are breaks in the skin
74
A tank made of heavy-duty stainless sheet of diameter varying from 60 to 130 cm and not more than 5 meters long.
Correct answer: Storage Tank
Source: PDE by Max Fajardo
75
A tank made of heavy-duty stainless sheet of diameter varying from 30 to 60 cm diameter tank and not more than 180 cm long
Range Boiler
76
mechanical device used to circulate hot water to the plumbing fixtures
Pump Circuit System
77
The method used for transferring heat in a gravity domestic hot-water circulation system.
Correct: Convection
Source: Audel
78
the process in which energy in the form of heat is sent through space from atoms and molecules as they undergo internal change.
Radiation
79
the transference of heat by the passage of energy, particle by particle.
Conduction
80
transport of an atmospheric property solely by the mass motion (velocity field) of the atmosphere
Advection
81
the transference of heat by the upward movement of a warm light air current.
Convection
82
Refers to the maximum and minimum pressure at which proper function of the water supply system can be maintained.
Correct answer: Critical Pressure
Source: PDE by Max Fajardo
83
loss in the rate of flow due to friction between the water and the walls of the pipe
Head Loss by Friction or Friction Head Loss
84
refer to variations in pressure between the water main and the outlet end of the water service
Pressure Loss
85
refers to the pressure range measured over a period of 24 hours
Normal Pressure
86
DFU of Urinal stall, separate trap
2
87
A sanitary sewer that conveys sanitary waste to a dispersal plant.
Correct answer: Intercepting Sewer
Source: PDE by Max Fajardo
88
Smaller in diameter than intercepting sewer. It terminates into the intercepting Sewer
Tributary Sewer or Contributing Sewer
89
oldest type of public sewer that conveys both storm water and sanitary wastes
Combination Public Sewer
90
Water above the filter sand that provides hydraulic head for the process
Correct answer: Supernatant
Source: ce.memphis.edu
91
a hypogeal biological layer; consists of biologically active microorganisms that break down organic matter
German for dirt cover
Schmutzdecke
92
refers to the set of substances in a septic tank which are lighter than water
Scum
93
solids that settle on the bottom
Sludge
94
Water for domestic use comes from these source except _____.
Correct answer: sea water
Additional info:
- sea water's salt content makes it poisonous for human use
95
What is the purpose of a weir outlet?
Correct answer: To control the overflow of stormwater
Source: hydrocad.net; practical.engineering
Additional info:
- A weir is usually modeled as an outlet device that controls the discharge from a pond.
96
Water connection size for flushometer-tank WC
Correct answer: 10 mm
Source: RNPCP, Appendix A
97
Water connection size dental unit or cuspidor, lavatory, and flush tank WC
10MM
98
Water connection size urinal stall
19 mm
99
Water connection size urinal stall wash sink, circular or multiple, bathtub, bidet, etc.
13 mm
100
It refers to the transmission of pathogens through vehicles such as water, food, and air.
Correct answer: Vehicle
101
An individual capable of transmitting a pathogen without displaying symptoms
Carrier
102
biological vector, an animal (typically an arthropod) that carries the disease from one host to another
Vector
103
Contact transmission includes direct contact or indirect contact (person-to-person, droplet sprays, etc.)
Contact
104
Water Quality Guidelines and General Effluent Standards of 2016
Correct answer: DENR AO 2016-08
Additional info:
- the AO provides guidelines for the classification of water bodies in the country, evaluation of water quality, and set the general effluent standards
105
A well dug with the use of earth augers.
Correct answer: Bored well
106
A steel drive-well point is fitted on one end of the pipe section and driven to earth.
Driven well
107
require more elaborate equipment of several types, depending on the geology of the site.
Drilled well
108
Cold water that enters the top of a water is funneled to the bottom of the tank via _____.
Correct answer: Dip Tube
Source: brickmua.com; various websites
109
attract the sediment and corrosive elements (like minerals in the water) so that they corrode the anode rod rather than the inside of your water heater tank.
Anode Rod
110
brings exhaust gases from the water heater to the outdoors
Flue
111
Suspended solids are removed from the water by gravity settling and deposition.
Correct answer: Sedimentation
Source: oregon.gov; various websites
112
The process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that allows the fluid to pass through while retaining the solid particles
Filtration
113
The goal of disinfection is to kill any remaining bacteria in the contact chamber.
Disinfection
114
Air is pumped into the aeration tank/basin to encourage conversion of NH3 to NO3 and provide oxygen for bacteria to continue to propagate and grow.
Aeration
115
What is the area called "zone of saturation" in a well?
Correct answer: the area below the water table
Additional info:
- Water table is the boundary between the saturated and unsaturated zone
- Unsaturated zone is the area above the water table
116
Filtration through activated carbon purifier filtration is a correction for the presence of _____ in the water.
Correct answer: Taste or Odor
Source: PDE by Max Fajardo
117
can be cured by Chlorination by sodium hypochlorite or chlorine gas
Pollution
118
can be cured by precipitation by filtration through manganese zeolite oxidizing filter
Color
119
can be cured by filtration
Turbidity
