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PLUMBING-SPDI

Total questions: 87

Worksheet time: 49mins

Name
Class
Date
1.

Which of the following is a cause of inflow in sanitary sewer systems?

a)

root intrusion to sewer

b)

leaky joints

c)

illegally connected sump pump

d)

deteriorated manhole

2.

The recommended minimum shower head height from the floor for emergency showers.

a)

1.9 m

b)

2.1 m

c)

2.0 m

d)

2.2 m

3.

Every passage to an attic water heater shall have a solid continuous flooring not less than ____ in width.

a)

48 inches

b)

24 inches

c)

36 inches

d)

60 inches

4.

This system is provided with 64 mm (2 ½ in.) hose connections for full-scale firefighting.

a)

Class II System

b)

Class III System

c)

Class I System

d)

Class IV System

5.

Backwater valves are required _____.

a)

at every fixture location within a multistory building

b)

in locations where fixtures are arranged in rows

c)

at free-flowing cold-water pipes in two-story buildings

d)

in locations where fixtures are subject to backpressure

6.

Which of the following is not a fixture?

a)

Water Closet

b)

Urinal

c)

Slop Sink

d)

Lavatory

7.

This system uses one tank for all the treatment steps, rather than using different equipment for each step in the process.

a)

MBBR

b)

SBBR

c)

ASP

d)

SBR

8.

What is a standard for Valves, Flanges, Fittings, and Gaskets

a)

ANSI/ASSP A10

b)

ANSI/ASME A13

c)

ANSI/ASME B16

d)

ANSI/ASME B1

9.

The minimum retention period or the time for which suspended matters in septic tank would settle and stabilize.

a)

12 hours

b)

24 hours

c)

30 hours

d)

18 hours

10.

A substance that deforms continuously under the application of a shear force. It cannot sustain a shear force at rest.

a)

Air

b)

Effluent

c)

Water

d)

Fluid

11.

All of the following are effective ways to reduce water hammer, except _____.

a)

using flexible hose connection

b)

installing PRVs

c)

reducing pipe diameter

d)

installing air chambers

12.

What is the height of the Dry Standpipe outlet above the floor of each storey?

a)

122 cm to 182 cm

b)

91 cm to 182 cm

c)

46 cm to 122 cm

d)

61 cm to 122 cm

13.

Which is true about the function of a jockey pump?

a)

it increases water flow during high demand such as fire emergencies

b)

it prevents frequent fire pump activation

c)

it serves as the back-up to the main fire pump as the system requires redundancy

d)

it regulates water temperature

14.

A well that doesn’t require a pump to bring water to the surface; this occurs when there is enough pressure in the aquifer.

a)

Drilled well

b)

Shallow well

c)

Deep well

d)

Artesian well

15.

Which of the following fire pump types is most suitable for a system with a high suction lift requirement?

a)

Vertical turbine pump

b)

Vertical inline pump

c)

Horizontal split-case pump

d)

Positive displacement pump

16.

The horizontal transport of heat in the atmosphere.

a)

Radiation

b)

Advection

c)

Conduction

d)

Convection

17.

In no case shall the clearance between the bottom of the fire extinguisher and the floor be less than _____.

a)

100 mm

b)

150 mm

c)

300 mm

d)

200 mm

18.

Which of the following is true about soil porosity?

a)

Clay is more porous, but sand is more permeable.

b)

The soil with larger pores drains slower.

c)

Gravel has low porosity and low permeability.

d)

Clay might have small pores due to fracturing.

19.

They refer to waters with salinity levels not less than 30 parts per thousand, at least 95 percent of the time.

a)

Brackish waters

b)

Marine waters

c)

Briny waters

d)

Hypersaline waters

20.

What is one of the advantages of pressure sewer systems?

a)

Manholes are no longer needed.

b)

They do not require power to operate.

c)

They are fit for areas with high population density.

d)

Lesser maintenance is required.

21.

The tensile strength of A53 pipes should be a minimum of 48,000 psi for ________.

a)

Grade A

b)

Grade B

c)

Grade C

d)

Grade D

22.

The angle of gooseneck from water main is usually _____.

a)

45 degrees

b)

60 degrees

c)

30 degrees

d)

90 degrees

23.

Term for the rainwater drained from roof gutters and downspouts.

a)

Storm water

b)

Run-off

c)

Surface water

d)

Ground water

24.

The stage where solids form larger clusters, or flocs to be removed from water.

a)

Flocculation

b)

Coagulation

c)

Sedimentation

d)

Disinfection

25.

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.

a)

force pump

b)

suction tank

c)

centrifugal pump

d)

hydraulic ram

26.

Which of the following factors would most significantly impact the suitability of treated wastewater for drip irrigation system?

a)

The color of wastewater

b)

The turbidity of wastewater

c)

The chlorine content of tapwater

d)

The pathogens in the wastewater

27.

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

a)

hydrometer

b)

hygrometer

c)

barometer

d)

altimeter

28.

Which of the following is true about stormwater swale?

a)

They intercept and filter rainfall

b)

They pump runoff to avoid flooding

c)

They carry sewage to treatment plant

d)

They increase runoff speed to to remove pollutants

29.

A septic tank's leaching chamber has an effective capacity of 5,600 liters. Find the approximate volume of the digestive chamber.

a)

13,600 liters

b)

16,800 liters

c)

2,800 liters

d)

11,200 liters

30.

Which of the following extinguishers are not selected for protection of Class B hazard?

a)

FFFP Foam

b)

Wet Chemical

c)

Carbon Dioxide

d)

AFFF

31.

The hot water supplied to bathtubs and whirlpool bathtubs shall be limited to a maximum temperature of _____.

a)

140° F

b)

160° F

c)

110° F

d)

120° F

32.

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

a)

50 mg/L

b)

500 ppm

c)

20 mg/L

d)

200 ppm

33.

In a municipality where a combination sewer system is used, how can you avoid an overflow from fixtures installed in the basement?

a)

Increase drain pipe size at least 2 times larger

b)

Install properly-spaced backwater valves

c)

Use deep-seal traps

d)

Increase the rise of the sewer pipe

34.

A type of nipple where a small amount of pipe exists between the threads.

a)

coupling

b)

shoulder or short nipple

c)

close nipple

d)

long nipple or extra-long nipple

35.

A rocket or liquid propellant which consists of combinations of fuels and oxidizers which ignite spontaneously on contact with each other.

a)

Hypergolic Fuel

b)

Magnesium

c)

Fumigant

d)

Organic Peroxide

36.

A tributary sewer is defined as _____.

a)

A sewer that receives flow from multiple sewers and connects to STP.

b)

A public sewer that conveys both storm water and sanitary wastes.

c)

A sewer that serves multiple lateral branches and terminates to a main sewer.

d)

The lowest horizontal piping of a drainage system inside a building.

37.

What is the coefficient of roughness of Galvanized Iron?

a)

0.009

b)

0.012

c)

0.016

d)

0.01

38.

A water closet that does not have a flushing mechanism.

a)

Reverse trap

b)

Pail Flush

c)

Dry toilet

d)

Blowout

39.

What is a standard for Ductile-Iron and Gray-Iron Fittings?

a)

AWWA C200

b)

AWWA E102

c)

AWWA C521

d)

AWWA C110

40.

Where surface water in a perennial stream does not meet the water demand in dry weather, _____ can constitute a good source of water

a)

Cavity tube well

b)

Surface waters

c)

Infiltration galleries

d)

Brackish waters

41.

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?

a)

PME

b)

ME

c)

CPM

d)

All of the choices

42.

When was the publication date of the Revised Implementing Rules and Regulations of RA 9514?

a)

June 8, 2019

b)

March 18, 2019

c)

September 16, 2019

d)

August 4, 2019

43.

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.

a)

Detailed Drawing

b)

Site Plan

c)

Schematic Piping Layout

d)

Plot Plan

44.

This type of spring develop in areas where the downward flow of groundwater is prevented by an underlying impermeable layer of rock.

4 lines
45.

This type of spring develop in areas where the downward flow of groundwater is prevented by an underlying impermeable layer of rock.

a)

Stratum springs

b)

Valley springs

c)

Solution channel spring

d)

Artesian spring

46.

Which of the following is not a part of a diaphragm pump?

a)

Vane

b)

Ball valve

c)

Flexible Diaphragm

d)

Suction Port

47.

The on-going installation of the plumbing system or any part thereof which has been installed prior to the effectivity of the Code.

a)

As-built installation

b)

Existing Work

c)

Roughing-in

d)

Trim-out

48.

Copper has several alloys such as brass that are used as a plumbing material. What is the other principal element found in brass?

a)

Tin

b)

Zinc

c)

Aluminum

d)

Nickel

49.

ASTM of PVC Sewer Pipe and Fittings

a)

ASTM D2239

b)

ASTM D2729

c)

ASTM D1785

d)

ASTM F441

50.

What is NFPA 101?

a)

Life Safety Code

b)

Building Safety Code

c)

Fire Code

d)

Fire protection systems

51.

Which of the following occupancies require wet standpipe?

a)

Basement or cellars equipped with approved, supervised sprinkler system

b)

Hazardous storage and business and mercantile occupancies having a floor area exceeding 1,860 sqm per floor

c)

Assembly occupancies with an occupant load exceeding 500

d)

Educational, healthcare and detention and correctional, business and mercantile, industrial, and hotels and apartments occupancies 3 or more storeys in height

52.

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?

a)

Gauge 16

b)

Gauge 18

c)

Gauge 14

d)

Gauge 20

53.

What is that receptacle installed at corner wall that collect rain water from a balcony?

a)

Roof Drain

b)

Downspout

c)

Beehive roof drain

d)

Scupper drain

54.

Which of the following is true about surface waters?

a)

Rivers are more reliable source of water compared to streams because rivers are less likely to be polluted.

b)

Rivers are more reliable source of water compared to lakes because rivers are replenished by upstream sources.

c)

Lakes are more reliable sources of water compared to rivers because water stability dilutes the pollutants

d)

Lakes are more reliable source of water compared to river because less pollutants accumulate in lakes

55.

Fixture connections between drainage pipes and water closet shall be made with ____.

a)

hot poured compound

b)

flanges

c)

expansion joints

d)

unions

56.

The following gases are found in septic tank except for one.

a)

Sulfur Dioxide

b)

Hydrogen Sulfide

c)

Methane

d)

Carbon Sulfide

57.

Which is not true about water quality guidelines?

a)

Temperature to be maintained in recreational water is 18°- 40° C.

b)

Fishery water has a higher ammonia effluent limit than protected waters.

c)

Strong wastewater has an initial BOD equal to or greater than 3,000 mg/L.

d)

Navigable waters has higher BOD limits than waters intended for recreation

58.

PD 1096 prescribes that dry standpipe is required for every building of how many floors?

a)

5 storeys or more

b)

4 storeys or more

c)

2 storeys or more

d)

3 storeys or more

59.

What is the pipe diameter recommended for a soil branch that serves 1800 DFU?

a)

152 mm

b)

203 mm

c)

127 mm

d)

254 mm

60.

It is used for measuring pore water pressures. It is also used to measure underground water pressure

a)

barometer

b)

manometer

c)

piezometer

d)

thermometer

61.

When installing hubless cast iron pipe, what tool is commonly used?

a)

End Pipe Wrench

b)

Ballpeen hammer

c)

Ratchet Spanner

d)

Allen Wrench

62.

Standard for PE Plastic Pipe

a)

ASTM F2389

b)

ASTM D4976

c)

ASTM D3035

d)

ASTM D1785

63.

What is the purpose of stormwater outfall?

a)

To discharge runoff to water body

b)

To collect surface run-off

c)

To treat rainwater for irrigation use

d)

To filter stormwater before entering a water body

64.

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?

a)

51 mm

b)

102 mm

c)

127 mm

d)

76 mm

65.

For trap arms ___ in diameter and larger, the change of direction not exceeding 22 1/2 degrees, no cleanout is required.

a)

76 mm

b)

32 mm

c)

102 mm

d)

204 mm

66.

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?

a)

0.37 hrs

b)

0.25 hrs

c)

0.28 hrs

d)

0.34 hrs

67.

This material is not used in lavatories as water becomes black or brown.

a)

zinc

b)

iron

c)

lead

d)

copper

68.

Which of the following is important regarding the potential energy of water from a reservoir?

a)

Height

b)

Velocity

c)

Density

d)

Volume

69.

Which of the following aims to mimic the natural water treatment processes of wetlands?

a)

Biological aerated filter

b)

Constructed wetlands

c)

Reverse osmosis

d)

Soil aquarium

70.

What happens when you connect pump in series?

a)

Same GPM

b)

Same Pressure

c)

Same Horsepower

d)

Different RPM

71.

Standard Specification for Cast Iron Soil Pipe and Fittings

a)

ASTM A888

b)

ASTM B43

c)

ASTM A123

d)

ASTM A74

72.

How is iron treated in wastewater?

a)

aeration

b)

coagulation

c)

filtration

d)

sedimentation

73.

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.

a)

Siphon Vortex

b)

Reverse Trap

c)

Blowout

d)

Siphon Jet

74.

Which of the following formation is favorable for well construction and water quality?

a)

Layers of silt and sand

b)

Interbedded layers of clay and sand

c)

Layers of gravel and sand

d)

Thick clay layer above limestone

75.

Property of a fluid whereby its own molecules are united or attracted to each other.

a)

Cohesion

b)

Ideal Fluid

c)

Adhesion

d)

Capillary Action

76.

A water closet that features an elevated cistern connected by a long pipe to the bowl.

a)

low tank

b)

close-coupled water closet

c)

high tank water closet

d)

one-piece water closet

77.

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.

a)

Single Suction Pump

b)

Mixed Flow Pump

c)

Double Suction Pump

d)

Jet Pump

78.

An oxygen cylinder of volume 2 cu.ft has a pressure of 2000 psig and is at 21°C, determine the mass.

a)

10.29 kg

b)

22.68 slugs

c)

22.68 kg

d)

10.29 lbs

79.

Chemical not found in drain cleaners

a)

Sodium hydroxide

b)

Hydrochloric acid

c)

Hydrogen sulfate

d)

Hydrogen Peroxide

80.

What is the suitable material for cutting cast iron?

a)

Wide Roll Pipe Cutter

b)

Ratchet Cutter

c)

Soil Pipe Cutter

d)

Tubing cutter

81.

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.

a)

trap

b)

seal

c)

depth of water seal

d)

trap seal

82.

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.

a)

Condensation

b)

Distillation

c)

Filtration

d)

Evaporation

83.

Which among the choices is classified as moderate hazard?

a)

The sum of class A combustibles and B flammables are higher than expected or anticipated under light (low) hazard occupancies

b)

The sum of class A combustibles and class B flammables are low

c)

The sum of class A combustibles is low

d)

The sum of Class A combustibles and Class B flammables are present in storage, over and above those expected under ordinary (moderate) hazard

84.

Which of the following is not a purification process?

a)

Precipitation

b)

Filtration

c)

Evaporation

d)

Aeration

85.

In a plain sedimentation tank, ____ of BOD is removed.

a)

40% - 60%

b)

15% - 30%

c)

30% - 40%

d)

5% - 10%

86.

The following are causes of permanent hardness, except for one.

a)

Magnesium chloride

b)

Calcium Bicarbonate

c)

Calcium sulfate

d)

Magnesium Nitrate

87.

What is the diameter of a dry standpipe with 3-way siamese fire department connection

4 lines