WorksheetsPLUMBING-SPDI
Total questions: 87
Worksheet time: 49mins
Which of the following is a cause of inflow in sanitary sewer systems?
root intrusion to sewer
leaky joints
illegally connected sump pump
deteriorated manhole
The recommended minimum shower head height from the floor for emergency showers.
1.9 m
2.1 m
2.0 m
2.2 m
Every passage to an attic water heater shall have a solid continuous flooring not less than ____ in width.
48 inches
24 inches
36 inches
60 inches
This system is provided with 64 mm (2 ½ in.) hose connections for full-scale firefighting.
Class II System
Class III System
Class I System
Class IV System
Backwater valves are required _____.
at every fixture location within a multistory building
in locations where fixtures are arranged in rows
at free-flowing cold-water pipes in two-story buildings
in locations where fixtures are subject to backpressure
Which of the following is not a fixture?
Water Closet
Urinal
Slop Sink
Lavatory
This system uses one tank for all the treatment steps, rather than using different equipment for each step in the process.
MBBR
SBBR
ASP
SBR
What is a standard for Valves, Flanges, Fittings, and Gaskets
ANSI/ASSP A10
ANSI/ASME A13
ANSI/ASME B16
ANSI/ASME B1
The minimum retention period or the time for which suspended matters in septic tank would settle and stabilize.
12 hours
24 hours
30 hours
18 hours
A substance that deforms continuously under the application of a shear force. It cannot sustain a shear force at rest.
Air
Effluent
Water
Fluid
All of the following are effective ways to reduce water hammer, except _____.
using flexible hose connection
installing PRVs
reducing pipe diameter
installing air chambers
What is the height of the Dry Standpipe outlet above the floor of each storey?
122 cm to 182 cm
91 cm to 182 cm
46 cm to 122 cm
61 cm to 122 cm
Which is true about the function of a jockey pump?
it increases water flow during high demand such as fire emergencies
it prevents frequent fire pump activation
it serves as the back-up to the main fire pump as the system requires redundancy
it regulates water temperature
A well that doesn’t require a pump to bring water to the surface; this occurs when there is enough pressure in the aquifer.
Drilled well
Shallow well
Deep well
Artesian well
Which of the following fire pump types is most suitable for a system with a high suction lift requirement?
Vertical turbine pump
Vertical inline pump
Horizontal split-case pump
Positive displacement pump
The horizontal transport of heat in the atmosphere.
Radiation
Advection
Conduction
Convection
In no case shall the clearance between the bottom of the fire extinguisher and the floor be less than _____.
100 mm
150 mm
300 mm
200 mm
Which of the following is true about soil porosity?
Clay is more porous, but sand is more permeable.
The soil with larger pores drains slower.
Gravel has low porosity and low permeability.
Clay might have small pores due to fracturing.
They refer to waters with salinity levels not less than 30 parts per thousand, at least 95 percent of the time.
Brackish waters
Marine waters
Briny waters
Hypersaline waters
What is one of the advantages of pressure sewer systems?
Manholes are no longer needed.
They do not require power to operate.
They are fit for areas with high population density.
Lesser maintenance is required.
The tensile strength of A53 pipes should be a minimum of 48,000 psi for ________.
Grade A
Grade B
Grade C
Grade D
The angle of gooseneck from water main is usually _____.
45 degrees
60 degrees
30 degrees
90 degrees
Term for the rainwater drained from roof gutters and downspouts.
Storm water
Run-off
Surface water
Ground water
The stage where solids form larger clusters, or flocs to be removed from water.
Flocculation
Coagulation
Sedimentation
Disinfection
This type of apparatus are automatic and require no motor since they depend for operation upon water hammer that is surging back and forth in a pipe when suddenly brought to rest.
force pump
suction tank
centrifugal pump
hydraulic ram
Which of the following factors would most significantly impact the suitability of treated wastewater for drip irrigation system?
The color of wastewater
The turbidity of wastewater
The chlorine content of tapwater
The pathogens in the wastewater
An instrument used to measure the amount of water vapor in air, in soil, or in confined spaces
hydrometer
hygrometer
barometer
altimeter
Which of the following is true about stormwater swale?
They intercept and filter rainfall
They pump runoff to avoid flooding
They carry sewage to treatment plant
They increase runoff speed to to remove pollutants
A septic tank's leaching chamber has an effective capacity of 5,600 liters. Find the approximate volume of the digestive chamber.
13,600 liters
16,800 liters
2,800 liters
11,200 liters
Which of the following extinguishers are not selected for protection of Class B hazard?
FFFP Foam
Wet Chemical
Carbon Dioxide
AFFF
The hot water supplied to bathtubs and whirlpool bathtubs shall be limited to a maximum temperature of _____.
140° F
160° F
110° F
120° F
In disinfecting potable water system, the system or part thereof shall be filled with water/chlorine solution containing not less than _____ of chlorine, and the system or part thereof shall be valved off and allowed to stand for 24 hours
50 mg/L
500 ppm
20 mg/L
200 ppm
In a municipality where a combination sewer system is used, how can you avoid an overflow from fixtures installed in the basement?
Increase drain pipe size at least 2 times larger
Install properly-spaced backwater valves
Use deep-seal traps
Increase the rise of the sewer pipe
A type of nipple where a small amount of pipe exists between the threads.
coupling
shoulder or short nipple
close nipple
long nipple or extra-long nipple
A rocket or liquid propellant which consists of combinations of fuels and oxidizers which ignite spontaneously on contact with each other.
Hypergolic Fuel
Magnesium
Fumigant
Organic Peroxide
A tributary sewer is defined as _____.
A sewer that receives flow from multiple sewers and connects to STP.
A public sewer that conveys both storm water and sanitary wastes.
A sewer that serves multiple lateral branches and terminates to a main sewer.
The lowest horizontal piping of a drainage system inside a building.
What is the coefficient of roughness of Galvanized Iron?
0.009
0.012
0.016
0.01
A water closet that does not have a flushing mechanism.
Reverse trap
Pail Flush
Dry toilet
Blowout
What is a standard for Ductile-Iron and Gray-Iron Fittings?
AWWA C200
AWWA E102
AWWA C521
AWWA C110
Where surface water in a perennial stream does not meet the water demand in dry weather, _____ can constitute a good source of water
Cavity tube well
Surface waters
Infiltration galleries
Brackish waters
Which of the following is limited to operate, tend or maintain, or be in-charge of the operation, tending or maintenance of any mechanical works, projects, plant of up to 300 kW?
PME
ME
CPM
All of the choices
When was the publication date of the Revised Implementing Rules and Regulations of RA 9514?
June 8, 2019
March 18, 2019
September 16, 2019
August 4, 2019
Civil works drawing that shows all the major features and structures on a piece of property. It may display the utility blocks, process blocks, roads, and building blocks for a potential project.
Detailed Drawing
Site Plan
Schematic Piping Layout
Plot Plan
This type of spring develop in areas where the downward flow of groundwater is prevented by an underlying impermeable layer of rock.
This type of spring develop in areas where the downward flow of groundwater is prevented by an underlying impermeable layer of rock.
Stratum springs
Valley springs
Solution channel spring
Artesian spring
Which of the following is not a part of a diaphragm pump?
Vane
Ball valve
Flexible Diaphragm
Suction Port
The on-going installation of the plumbing system or any part thereof which has been installed prior to the effectivity of the Code.
As-built installation
Existing Work
Roughing-in
Trim-out
Copper has several alloys such as brass that are used as a plumbing material. What is the other principal element found in brass?
Tin
Zinc
Aluminum
Nickel
ASTM of PVC Sewer Pipe and Fittings
ASTM D2239
ASTM D2729
ASTM D1785
ASTM F441
What is NFPA 101?
Life Safety Code
Building Safety Code
Fire Code
Fire protection systems
Which of the following occupancies require wet standpipe?
Basement or cellars equipped with approved, supervised sprinkler system
Hazardous storage and business and mercantile occupancies having a floor area exceeding 1,860 sqm per floor
Assembly occupancies with an occupant load exceeding 500
Educational, healthcare and detention and correctional, business and mercantile, industrial, and hotels and apartments occupancies 3 or more storeys in height
Plastic piping or tubing, copper or copper alloy piping or tubing, and ducts penetrating framing members have to be protected. What is the minimum gauge of steel nail plates?
Gauge 16
Gauge 18
Gauge 14
Gauge 20
What is that receptacle installed at corner wall that collect rain water from a balcony?
Roof Drain
Downspout
Beehive roof drain
Scupper drain
Which of the following is true about surface waters?
Rivers are more reliable source of water compared to streams because rivers are less likely to be polluted.
Rivers are more reliable source of water compared to lakes because rivers are replenished by upstream sources.
Lakes are more reliable sources of water compared to rivers because water stability dilutes the pollutants
Lakes are more reliable source of water compared to river because less pollutants accumulate in lakes
Fixture connections between drainage pipes and water closet shall be made with ____.
hot poured compound
flanges
expansion joints
unions
The following gases are found in septic tank except for one.
Sulfur Dioxide
Hydrogen Sulfide
Methane
Carbon Sulfide
Which is not true about water quality guidelines?
Temperature to be maintained in recreational water is 18°- 40° C.
Fishery water has a higher ammonia effluent limit than protected waters.
Strong wastewater has an initial BOD equal to or greater than 3,000 mg/L.
Navigable waters has higher BOD limits than waters intended for recreation
PD 1096 prescribes that dry standpipe is required for every building of how many floors?
5 storeys or more
4 storeys or more
2 storeys or more
3 storeys or more
What is the pipe diameter recommended for a soil branch that serves 1800 DFU?
152 mm
203 mm
127 mm
254 mm
It is used for measuring pore water pressures. It is also used to measure underground water pressure
barometer
manometer
piezometer
thermometer
When installing hubless cast iron pipe, what tool is commonly used?
End Pipe Wrench
Ballpeen hammer
Ratchet Spanner
Allen Wrench
Standard for PE Plastic Pipe
ASTM F2389
ASTM D4976
ASTM D3035
ASTM D1785
What is the purpose of stormwater outfall?
To discharge runoff to water body
To collect surface run-off
To treat rainwater for irrigation use
To filter stormwater before entering a water body
A 200 sqm roof area is situated in a city where the rainfall intensity is 127 mm/hr. What pipe diameter will you recommend for downspout?
51 mm
102 mm
127 mm
76 mm
For trap arms ___ in diameter and larger, the change of direction not exceeding 22 1/2 degrees, no cleanout is required.
76 mm
32 mm
102 mm
204 mm
An industrial pump displaces 6.5 liters per stroke and operates at 80 strokes per minute. How long, in hours, will it take to transfer 2340 gallons of liquid?
0.37 hrs
0.25 hrs
0.28 hrs
0.34 hrs
This material is not used in lavatories as water becomes black or brown.
zinc
iron
lead
copper
Which of the following is important regarding the potential energy of water from a reservoir?
Height
Velocity
Density
Volume
Which of the following aims to mimic the natural water treatment processes of wetlands?
Biological aerated filter
Constructed wetlands
Reverse osmosis
Soil aquarium
What happens when you connect pump in series?
Same GPM
Same Pressure
Same Horsepower
Different RPM
Standard Specification for Cast Iron Soil Pipe and Fittings
ASTM A888
ASTM B43
ASTM A123
ASTM A74
How is iron treated in wastewater?
aeration
coagulation
filtration
sedimentation
A type of water closet that is noisy but highly efficient. Strong jet into up leg forces contents out. Use only with flush valve, requires higher pressure.
Siphon Vortex
Reverse Trap
Blowout
Siphon Jet
Which of the following formation is favorable for well construction and water quality?
Layers of silt and sand
Interbedded layers of clay and sand
Layers of gravel and sand
Thick clay layer above limestone
Property of a fluid whereby its own molecules are united or attracted to each other.
Cohesion
Ideal Fluid
Adhesion
Capillary Action
A water closet that features an elevated cistern connected by a long pipe to the bowl.
low tank
close-coupled water closet
high tank water closet
one-piece water closet
This type of pump utilizes a pair of impellers arranged in a back-to-back configuration, and the water discharged from the impeller is directed into a spiral casing.
Single Suction Pump
Mixed Flow Pump
Double Suction Pump
Jet Pump
An oxygen cylinder of volume 2 cu.ft has a pressure of 2000 psig and is at 21°C, determine the mass.
10.29 kg
22.68 slugs
22.68 kg
10.29 lbs
Chemical not found in drain cleaners
Sodium hydroxide
Hydrochloric acid
Hydrogen sulfate
Hydrogen Peroxide
What is the suitable material for cutting cast iron?
Wide Roll Pipe Cutter
Ratchet Cutter
Soil Pipe Cutter
Tubing cutter
The maximum vertical depth of liquid that a trap will retain, measured between the crown weir and the top of the dip of the trap.
trap
seal
depth of water seal
trap seal
It is the separation of components from a mixture according to the relative volatility of the components. Low volatile components are separated from more volatile components.
Condensation
Distillation
Filtration
Evaporation
Which among the choices is classified as moderate hazard?
The sum of class A combustibles and B flammables are higher than expected or anticipated under light (low) hazard occupancies
The sum of class A combustibles and class B flammables are low
The sum of class A combustibles is low
The sum of Class A combustibles and Class B flammables are present in storage, over and above those expected under ordinary (moderate) hazard
Which of the following is not a purification process?
Precipitation
Filtration
Evaporation
Aeration
In a plain sedimentation tank, ____ of BOD is removed.
40% - 60%
15% - 30%
30% - 40%
5% - 10%
The following are causes of permanent hardness, except for one.
Magnesium chloride
Calcium Bicarbonate
Calcium sulfate
Magnesium Nitrate
What is the diameter of a dry standpipe with 3-way siamese fire department connection
