SPDI Flashcards
Trap size of fixtures for Wash basin.
1 ¼
Trap size of fixtures for slop sinks (ordinary).
2
Minimum cost. Least efficient subject to clogging, noisy. Simple washout and emptying through small irregular passageway, prohibited by some health codes.
Wash down
Trap size of fixtures for Urinals (through).
2 inch
Includes water supply and distribution pipe; plumbing fixtures and traps, soil, waste and vent pipes; house drain and house sewers including their respective connections.
Plumbing system
Trap size of fixtures for Water closets.
3 inch
Ratio of water closets for female population for elementary and secondary school.
Ratio of 1:30
A valve which in the water flow is shut off by a flat disk that is screwed down onto its seat.
Compression valve
The luminous flux density incident on a surface.
Illumination
A short length of pipe with threads at each end; used to join couplings or fittings.
Nipple
Trap size of fixtures for Sinks (Dishwashers).
1 ½
A pipe connecting upward from a soil and waste stack to a vent stack for the purpose of preventing pressure changes in the stack.
Yoke vent
Trap size of fixtures for Drinking Fountain.
1 ¼
A trench containing course aggregate and a distribution tile pipe through which septic tank effluent may flow covered with earth.
Absorption trench
Trap size of fixtures for Combination Fixture.
1 ½
Color coding of high pressure steam.
white
A passage under a road, embankment or canal which allows for the flow of water.
Culvert
Is the backflow of used, contaminated or polluted water from a plumbing fixture due to negative pressure.
Back siphonage
Is the lowest portion of the inside of any pipe or conduit that is not vertical.
Invert
An underground structure for drainage into which water from the roof or floor will drain through sewer.
Catch basin
An underground tank reservoir to store water.
Cistern
Ratio of water closets for female population for principal worship places.
Ratio of 1:75
Noisy but highly efficient. Strong jet into leg forces contents out. Higher pressure required.
Blow out
A U-shaped pipe filled with water and located beneath the plumbing fixtures to form a seal against the passages of gases and odors.
Air trap
Trap size of fixtures for Fountain cupsiders.
1 1/4
Fitting for base or soil stack and building drain.
1 1/4
The length along the center of the pipe and fitting.
Developed length
Trap size of fixtures for Floor drain.
3inch
Moderately noisy. Similar to siphon jet except that trap passageway and water surface area are smaller.
Reverse trap
Trap size of fixtures for Laundry trays.
1 ½
It is permitted that a branch soil or waste pipe to which two and more than 8 water closets, pedestal urinals, trap standard slop sinks, or shower stall are connected in a series.
Loop or circuit vent
A short internally threaded (female thread) section of pipe, used to join two pipes of conduits.
Coupling
A vent connecting at the junction of two fixture drains and serving as a vent for both fixtures a single vent that ventilates multiple traps, in the case of back to back fixture.
Common vent
The third kind of water after the storm water and area water.
blackwater
Quiet, extremely sanitary. Like the siphon jet but having the flushing water directed through the rim to create a vortex that scours the bowl.
Siphon vortex
Piping which shall not be installed under or within 2 ft (0.6m) of any building or structure is?
Asbestos cement
The extension of a soil or waste stack above the highest horizontal drain connected to the stack horizontal drain, the uppermost end above the roof.
Stack vent
A branch vent that serves two or more traps and extends from in front of the last fixture connection of a horizontal branch to the vent stack.
Circuit vent
Ratio of water closets for male population for elementary and secondary school.
Ratio of 1:30
A pipe fitting within the interconnection of pipes for the purpose of easy dismantling of the connection when needed.
Union patente
Service drop conductor clearance over the roof.
2.5 m
Trap size of fixtures for Bathfoot.
1 ½
The principal artery of the venting system to which vent branches maybe connected.
Main vent
Wet standpipe for a riser not more than 15 m.
2
A device that discharges a predetermined volume of water to fixture for flushing purposes and is activated by direct water pressure.
Flushometer valve
A flange that closes the end of a pipe used to discharge water.
Blind flange
Minimum height of dry standpipe outlet from the floor line.
61 mm
Trap size of fixtures for urinals (up).
1 1/2
A branch vents that performs its functions for two or more traps.
Group vent
Trap size of fixtures for Sinks (kitchen or residence).
1 ½
A horizontal vent connecting one or more individual vents with a vent stack and stack vent.
Branch vent
Minimum height of Fire Service Connection from the grade/floor.
46 mm
Refers to any group of two or more similar adjacent fixtures which discharge into a common horizontal waste or soil branch.
Battery of fixtures
Is a pipe connecting several fixtures.
Fixture branch
A valve which maintains uniform pressure on its outlet side regardless of its pressure fluctuation on the inlet side above the pressure level.
Pressure reducing valve
Used to connect the two ends pipes, neither of which can be turned.
Union
Ratio of lavatory to number of occupants.
Ratio of 1:5
Maximum height of Fire Service Connection from grade/floor.
122 mm
A flange that is not drilled.
Blank flange
The type of bathtub other than sunken, square, free standing.
Recessed
A type of fitting for yoke vent.
Wye fitting
Another classification of storm drain, besides from inside drain and outside drain.
Overhead storm drain
Is a device located at the bottom of the tank for the purpose of flushing water closets and similar fixtures.
Flush valve
Is the extended portion of a pipe that is closed at one end to which no connections are made on the extended portion.
Dead end
Install to be able to meet the water requirements during peak demands from a low yielding water well.
Water reservoir
Process of flushing, cleaning to remove dirt by the flowing liquid through it.
Scouring
Ratio of urinals for elementary schools.
Ratio of 1:75
Trap size of fixtures for Urinal (stall).
1 ½
Trap size of fixtures for slop sinks (with combine trap).
3 inch
Trap size of fixtures for Urinals (pedestal).
3 inch
An arrangement of venting so installed that one vent pipe will serve two traps.
Unit vent
Trap size of fixtures for pantry or bar.
1 1/4
A vent that does not serve as drain and is located where it is not exposed to back up of waste from a drainage pipe.
Dry vent
Color coding for fuel oil division.
Black
Trap size of fixtures for bath Shower stall.
2 inch
Trap size of fixtures for Bidet.
1 ½
Minimum discharge pipe and fitting for bathtub.
1 ½ in
Wet standpipe for riser more than 15 m.
2-1/2
Sanitary, efficient very quiet. A toilet bowl which the flushing water enters through the rim and siphonic action initiated by a water jet draws the contents of the bowl through the trap way.
Siphon jet
Dry standpipe for a riser below 23 m.
4
It is a pipe on the fixture side of the trap through which vapor or foul air is removed from a room fixture.
Local vent
Tap used to measure pressure in a water system.
Pressure cock
The lowest portion of the inside top surface of the channel through trap.
Dip
Water which undergoes treatment, either physical, biological or chemical means to improve water quality.
Purified water
A bathroom containing a water closet and a lavatory.
Half bath
How many gallons of water for the water closet flushing requirements?
3-5 gallons
Flushing is very noisy, expensive and has a low water usage (1.5 gpf) that helps conserve water. Large water surface makes this model efficient and design features make it suitable for residential use.
pressure tank
A vent connecting at the junction of two fixture drains and serving as a vent for both fixtures.
Common vent
How can you differentiate between soil pipe and waste pipe when laid side by side.
Diameter
It is added to water to reduce salinity.
electrolysis
Plumbing permit shall be invalid if works not commenced after a period of,
1 year
Efficient but moderately noisy and its reasonably low cost. Most of the bowl surface is covered with water.
Reversed Trap
Expensive, flushing is very noisy and large water surface and large trap way size make this model efficient and suitable for commercial use.
Pressure/tankless
Least efficient, most noisy type but lowest in cost.
Wash down
Model is mostly of one piece construction with low profile, expensive and the large water surface provides a very efficient and clean process and the flushing is extremely quiet.
Siphon vortex
Quiet flushing, have moderate cost and most popular residential model.
Siphon jet
What type of material used for the base of a septic tank.
Reinforced concrete
When water comes out as soon as the fire sprinkler is activated, the system is.
Pre-action
What is used to unclog a toilet?
Closet auger
The date when Sanitation Code is issued.
August 22, 1991
Provincial Water Utilities Act.
PD 198
Is a receptacle used to catch surface drained from cemented courts, driveways, and yards.
Yard Catch Basin
The date when the Philippine Environment Code is signed.
June 6, 1977
What is the maximum number of fixture units that maybe connected to a 75 mm diameter house drain pipe under 4% slope?
21
A piping arrangement in which a drain from a fixture, appliance, or device discharges indirectly into a fixture, receptacle, or interceptor at a point below the flood level rim of the receptacle so installed as to prevent backflow or siphonage.
Air break
Consists of a running trap installed under the basement floor to protect it from freezing.
Area drain
What is the slope of a 100 mm diameter house drainpipe with 100 fixture units?
4%
The following back of used, contaminated or polluted water from plumbing or vessel into a water supply pipe due to negative pressure in such pipe.
Back-siphonage
The house drain should be sized correctly to have a flow of about ____ of the pipe diameter.
50%
Environment Code of the Philippines.
PD 1152
The date when the Provincial Water Utilities Act is signed.
May 25, 1973
Fixture unit value of a Public or Hotel Sink.
2
It is not preferred to discharge into the septic tank.
Storm drain
Water Code of the Philippines.
PD 1067
It is a receptacle used to receive water to be drained from the floor into the plumbing system.
Floor drain
What is the maximum number of fixture units that may be connected to a 75 mm diameter house drain pipe under 2% slope?
18
A type of pipe connection in which a ball-shaped end is held in a cuplike shell and allows movement in any direction.
Ball joint
What is the maximum number of fixture units that maybe connected to a 125 mm diameter house drain pipe under 3% slope?
216
A sink designed primarily to receive wastes from bedpans and having a flush rim, an integral trap with a visible trap seal, and the same flushing and cleansing characteristics as a water closet.
Clinic sink
It is adopted when the street drainage is higher in elevation than the basement floor of the building.
Overhead storm drain
Sanitary sewage is also known as,
Domestic sewage
Fixture unit value of 1 bathroom consisting of 1 water closet, lavatory, bathtub and overhead shower or water closet, lavatory and shower compartment.
8
Civil Code of the Philippines.
RA 386
The unobstructed vertical distance through the free atmosphere between the outlet of water pipe and the flood level rim of the receptacle into which it is discharging.
Air gap
What is the slope of a 125 mm diameter house drain pipe with 150 fixture units?
2%
A device or means to prevent flow of liquid from returning to source of supply and also called vacuum breaker.
Backflow preventer
A device installed in a drainage system to prevent reverse flow.
Backwater valve
Appropriate fittings for a storm drain.
Wye, 1/8 bend, long radius
The date when the Water Code is signed.
December 31, 1976
The most preferred type of back flow valve because it has the characteristics of non-interferences in the movement of air inside the drainage system.
balance valve
Reduces the action scouring in the pipe, thus the solid waste are carried along the bottom of the pipe.
Oversize house drain
Storm drain is installed provided a slope of not more than _____ per meter run.
2%
It occurs due to an increased reverse pressure above the supply pressure.
Back pressure backflow
It is a device installed in a house drain immediately inside the foundation wall of the building.
House trap
It is also known as the collection line of a plumbing system.
House drain
A room equipped with a shower stall or bathtub.
Bathroom
Fixture unit value for every 15 sq. foot of roof drain.
1
An act to regulate the trade of Master Plumber in the Philippines.
RA 1378
Sanitation Code of the Philippines.
PD 856
A loop of pipe rising approximately 35 feet, at its top most point above the highest fixture it supplies.
Barometric loop
Is a device used in kitchen serving hotels, dining rooms, clubhouses and restaurants.
Grease interceptor
Fixture unit value of a Shower Bath.
2
A condition or any arrangement whereby reverse flow can occur.
Backflow connection
Revised Fire Code of the Philippines 2008.
RA 9514
It is sometimes located under the basement floor or when the walls of the buildings.
Inside storm drain
Clean Water Act.
RA 9275
Clean Air Act.
RA 8749
An act to regulate the practice of Sanitary Engineering in the Philippines.
RA 1364
A part of the vent line, which connects directly with an individual trap underneath or behind the fixture and extends to the branch or main vent pipe at any point higher than fixture or fixture traps it serves.
back vent pipe
The date when the Sanitary Engineering Law and Plumbing Law are approved.
June 28, 1955
It collects water coming from the downspout leading the accumulated water away from the house at a relatively low rate of flow.
splash pan
Not preferred type of backflow valve because of its poor performance.
unbalancevalve
Civil Code of the Philippines.
RA 386
Grease can be disposed in the kitchen sink?
Never
Your toilet should be running all the time?
Never
Teflon tape can be used when leaking occurs at which location.
Shower head
Where is the cold water valve located?
Right side
What do all toilets have built into them?
P-trap
What can never be re-used when replacing toilet?
Wax ring
What fits between a closet flange and toilet bowl?
Wax ring
What type of adhesive is used to caulk around wet surfaces?
Silicone
The safety valve on a water heater is called what?
TP valve
A faucet with a pullout spout, sometimes called a _______ faucet?
one-touch
How many single compartment fixtures of sinks, lavatory or laundry tubs that can be connected to a single trap?
3
What is the proper way to wind a Teflon on a pipe thread?
clockwise with the pipe facing you
A water treatment processes designed to destroy disease-causing microorganisms. Is often assessed by measuring the coliform group of indicator organisms.
chlorination
Caulk joint shall be firmly packed with oakum or hemp and powered received with pure load what that depth of lead over oakum?
25 mm (1)
A vertical enclosure with a removable cover providing access to a curb cock.
Curb box
A type of nipple having both ends externally threaded and the midsection unthreaded.
shoulder nipple
Vertical installation of double sanitary tees maybe used when the barrel of the fitting is at least ______than the largest side inlet.
2 pipe size larger
The vertical distance from the centerline of the pump (this would be the shaft on a horizontal pump) to the level in the discharge vessel.
Discharge head
Type of material made from mild steel that is drawn through a die and welded. It’s dipped in a bath of zinc, which treatment serves to some degree the pipe against the effect of acids.
Galvanized steel pipe
Fitting with a projecting collar along the edge used on installation requiring increased area coverage for added mechanical strength.
Flange
A form extracted metallurgy, its main use is to produce iron from ore.
Smelting
Assuming the waste pipe of a fixture is 50 mm, what should be the size of its vent pipe?
32 mm
A cast iron pipe in which the carbon is reformed by magnesium inoculation, resulting in a material having high strength without otherwise changing its basic properties. Good corrosion resistance makes this type of pipe especially useful in underground installations.
Ductile Iron Pipe
How many gallons do an average daily consumption of a Bathtub?
30 gallons
Can be constructed with hand tools or power tools-depth of about 15 meters (50 ft)-can have the greatest diameter that a space may allow.
Dug well
A device used to control an incoming high water pressure into the water distribution system by mechanical means so as to bring it to a working pressure of 80 psi.
Pressure reducing valve
Residence with 12 family members requires 3.6 cu. meters of cold water daily with peak demand. What is the maximum hot water probable hourly demand?
120 liters
Term used for a pipe extension of not more than 2 feet in length, installed at any stack or branch of a plumbing rough-in for the purpose future tap.
stub out
A type of water pump with its pump motor installed on the surface attached to a lift and push rod to activate a submerged piston.
reciprocating pump
A vent used in a battery of plumbing fixtures where the vent is installed in front of the last fixture of the battery.
circuit vent
In a water distribution system, locations such as supply pipe to every water heater requires a full open valve. Which of the following in the list is a full open valve?
angle valves
Minimum water delivery in liters per minute for an outlet of a wet standpipe at a residual pressure or 1.8 kilos per sq. mts.
132 liters per minute
Single lever valves used in kitchen sink and lavatory faucets or at shower valves has gain popularity in plumbing installation today. This is because these valves are beautiful and are maintenance-free. These valves work by the principle of a:
ball valve
The maximum height of a fire service connection from the grade line is ______ cms.
122 cms.
The maximum horizontal developed length between the trap seal and the vertical vent inlet at the trap arm.
5 feet
The minimum height of fire service connection from the grade line is ____ cms.
46 cms.
The standard size of an outlet of a dry standpipe located for each floor is ___mm. diameter.
64 mm (2 1/2)
Water as delivered by NAWASA is no longer safe for drinking because of several contaminants from the water source present in the environment. It is now therefore imperative that water to be safe for drinking has to undergo water purification in several stages. Because of several contaminants, water undergoes several stages. What is a stage in water purification, which removes mineral deposits, salts, heavy metal, totally dissolves solids while some useful minerals are retained?
reverse osmosis
What is a device installed on top of a pressure tank used to protect against hydrostatic collapse due to suction or negative pressure resulting from backsiphonage in a downfeed water distribution system?
pressure relief valve
What is a type of vent applied on installations with multi-branch interval where the vertical vent pipe takes off in front of the first fixture and connects to a main vent stack?
circuit vent
What is the size of supply inlet for flush tank type water closet?
3/8
Where are dampers installed to regulate the amount of cool air for an even distribution to outlets?
at the branch supply duct as far as practical from the outlet
A kind of G.I. fitting used as a reducer from a bigger diameter to a lesser diameter.
bushing
Acidity is one of the most problems in water distribution and water purification, which can cause Corrosion of non-ferrous pipes and Rusting & clogging of steel pipes, which is the best solution for this problem?
Passing the water through a bed of crushed marble or limestone to achieve alkalinity, or adding sodium silicate
Amount of waste discharged for a waste water treatment facility.
500 gpm
One end is 0.30M and the other end is 0.90M long. This prevents the pipe from snapping (breaking?) when the soil settles. [U-shaped?]
Gooseneck
Physical process in which the sediment particles collide with each other and stick together.
Flocculation
The discharge from a sump pump shall have the following fittings installed in order, in the direction of flow:
union, check valve, shutoff valve
What do you mean by “zero Ph” ?
Acid
Copper tube permitted for underground water distribution.
type K soft
What is a “powder room ?
half bath
There are several reasons why soil stacks are not allowed in columns. Which is NOT the reason?
The size of the columns will be larger
The tailpiece for a lavatory shall not be less than ____.
1-1/4 inch
What feature in water supply is NOT advisable to plumbing fixtures, devices and opportunities?
Bacterial quantity
Which of the following is an impairment of the quality of potable water which creates a hazard to public health through poisoning or the spread of disease?
Contamination
Globe valve for steam and hot water?
composition
What delivers water under pressure?
Centrifugal pump
Who was the President of the Republic of the Philippines who signed the “Plumbing Law of the Philippines”?
Ramon Magsaysay
A method of purifying water wherein particles of matters that are suspended in the water are allowed to stay in a container so that they will settle in the bottom, then drawing the water out, leaving these matters in the container.
Sedimentation
The pipe or shaft which is used to remove foul air or congested air from a fixture or a room and convey the same to the atmosphere is called?
local vent
Which does NOT apply in the removal of suspended materials and color in the water?
Chlorination
What do you call the undesirable type of vegetation formed when water reservoir is exposed to light?
Pond scum
The top of the well is lower than the high position of the previous stratum from which the water is obtained and water will rise through the entire length of the well and may flow from the wall without pumping.
Artesian well
What is the size of the yoke or by past vent for a high rise building?
Equal size of the main vent
What is the size of relief vent on a circuit vented soil branch installation of plumbing fixtures?
1/2 diameter of the soil pipe
What should be the front clearance of a cleanout having 2 inches diameter or less shall not be less than?
305 mm
What is the minimum horizontal distance required between vent terminal and window opening of a building?
3 m
What should be the front clearance of a cleanout having 2 inches diameter or larger shall not be less than?
450 mm
To reduce the excessive pressure that produces a hammering sound, how long a pipe should be added and installed on the top of riser of the highest fixture level to absorb air pressure.
0.60m - 0.90m
Which method that is NOT commonly used for bringing water from its source to the costumer?
Domestic water softener system
The soil branch piping installed in horizontal run must be supported by iron hanger at close interval to prevent sagging. What is the distance apart the hangers?
1.5 m
What is the chief factor in clarification of still water since particles of solid materials will settle more readily in still than flowing water?
Sedimentation
How far should a septic tank be constructed away from the water supply source to prevent contamination?
15.2 m
Saddle clamp is a pipe fitting which is NOT use when water service is to be interconnected to the type of water main.
Asbestos cement pipe
What is water that diminishes the capacity of water to form lather with soap?
Mineral that makes water hard
What water storage that was NOT used during primitive period?
Glass container
What is that appurtenant structure installed at the basement floor of a building which waste water are drained?
sump pit
Which sources of water supply that was NOT used in the older days?
Centralized treatment of reservoir
The non-soluble materials which is the end product after biological action of bacteria in waste and that settles at the bottom of the septic tank is called:
Sludge
The pipe that is remarkable for hot water lure installation:
Copper pipes
Corrosion in pipe, what is the by-product of chemical reaction of oxidation in forming ferrous oxide or rust is covered by the action of:
carbon dioxide, sulfur oxide, methane gas
It is the sink used as a rule for janitorial services in a building is called:
Slop sink
Determine the water nature through acidity or alkalinity is:
Ph value
An instrument used to measure the water flow:
Venturi meter
A type of valve which should be used only wide open or fully closed:
Gate valve
It includes the urea, proteins and amino acids is:
Nitrogenous compound
The unit of kinematics in metric system:
m2 / s
The unit of dynamics in metric system:
Pa-s
Means by which infectious agents are transported in causing disease. Water, food, insect and inanimate object may be vehicles of infection, insects or rodents are sometimes:
host
The retention period or the time for which suspended matters in septic tank would settle and stabilize is:
24 hours
The physical characteristics of sewage is determined by:
turbidity, color, odor
A state of complete physical, mental and social well being and not merely the absence of disease or infirmity:
Health
A positive displacement pump is:
rotary pump
It includes the discharge from latrine, urinals, bathroom, kitchen and stables is called:
Sewage
