PRACTICE PROBLEM SET 3 10. Diameter of closet rings or closet flanged for 18.

et rings or closet flanged for 18. Which fitting is used in joining galvanized steel 27.
1. Copper tube shall not be used for piping carrying water closet. pipe with plastic pipe? A. High rise building
chemicals or industrial. A. 178 mm A. Coupling B. Resorts
A. False B. 175 mm B. Union C. individual dwelling units
B. True C. 176 mm C. Tee D. Condominium
C. May be D. 200 mm D. Adapter
D. None of the above 28. Water closet for public use shall be elongated
11. Caulk-on closet rings or closet flanges shall not 19. Expansion loop is used in what kind of piping bowl types and with ___.
2. Type of copper pipe that can be used in water be less than 6.4 mm thick and not less than ____ in system. A. Open front seats
piping when installed aboveground or a top the overall depth. A. Storm Drainage B. Open side seats
building or underground outside the structures A. 75 mm B. Cold Water Supply C. Dual seat
with outside protective coating. B. 51 mm C. Hot Water Supply D. Closed front seats
A. Type K C. 100 mm D. Vent Piping
B. Type L D. 76 mm 20. Which of the following has the highest frictional 29. A self sealing gasket is found in a ___.
C. Type M coefficient? A. Screwed joint
D. Type DWV 12. Drainage fittings shall be screw jointed of the A. Gate Valve B. Full face flange
drainage type having smooth interior waterway and B. Globe Valve C. Victaulic coupling
3. Width of color code marking for copper tubing. be installed so as to ____ mm/m grade. C. Ball Valve D. Mechanical connection
A. 6.3 mm A. 20.9 D. Check Valve
B. 6.4 mm B. 21.9 30. All pipes passing through of under cinders or
C. 6.5 mm C. 19.9 21. Each grease trap shall have an approved water other corrosive materials shall be protected from
D. 6.0 mm D. 25 seal of not less than ____ in depth or the diameter external corrosion by encasing with ___.
of its outlet whichever is greater. A. Jute sack
4. Listed flexible copper water connectors shall be 13. Which of the following is the minimum size of A. 25 mm B. Polyethylene sheath
installed in _____ locations, unless otherwise listed. supply pipe for a shower head. B. 51 mm C. Polyvinyl sheath
A. Confined A. 25 mm C. 38 mm D. Propylene sheet
B. Indoor B. 19 mm D. 102 mm
C. Outdoor C. 10 mm 31. What valve is required ahead of each water
D. Exposed D. 13 mm 22. A water closet flushing design wherein flushing is supplied appliance slip joints or supply piping for
activated by a whirlpool-like action of water. non-metallic fixture and appliance.
5. Lead used for flashings or vent terminals not less 14. A cylindrical trap commonly used on the drain A. Wash down A. Flow valve
than _____ and 1.2 thick. pipes of bathtubs and bidet. B. Siphon jet B. Angle valve
A. 14.63 kg / m2 A. Running trap C. Pail flush C. Control gate valve
B. 14.50 kg / m2 B. P-trap D. Siphon vortex D. Check valve
C. 14.53 kg / m2 C. Bell trap
D. 14.73 kg / m2 D. Drum trap 23. A circuit vent may vent up to ___. 32. The maximum distance between manholes
A. 4 should not exceed ___.
6. Caulking ferrule materials shall be of the best 15. Which joint type is commonly used on galvanized B. 6 A. 91 m
quality. steel pipe? C. 8 B. 81 m
A. Red cast iron A. Soldered Joint D. 10 C. 71 m
B. Bronze B. Screwed Joint D. 61 m
C. Copper C. Welded Joint 24. What type of bacteria requires no oxygen for
D. All of the above D. Solvent Cement Joint their action in the decomposition of sewage 33. Which of the following is considered
A. Aerial bacteria sudsproducing fixture/appliance?
7. What is the minimum weight of caulking ferrule 16. PPR stands for ___, which is commonly used on B. Anaerobic bacteria A. Bathtubs
for 2” pipe? water supply piping. C. Aerobic bacteria B. Kitchen sink
A. 0.454 kg A. Polypropylene Return D. None of the above C. Washing machine
B. 0.452 kg B. Polypropylene Return D. All of the these
C. 0.544 kg C. Polypropylene Round 25. It is a type of elbow with a third opening
D. 0.445 kg D. Polypropylene Resin perpendicular to the plain of the run. 34. A pipe which makes an angle of more than 45
A. Three-outlet elbow degrees from the vertical axis is considered.
8. What is the minimum weight of bushing 4” 17. What type of vent is used in conjunction with B. Side-outlet elbow A. Horizontal pipe
diameter? loop vent? C. Branched elbow B. Vertical pipe
A. 1.586 kg A. Unit Vent D. Tri-axial elbow C. Sloped pipe
B. 1.865 kg B. Circuit Vent D. Diagonal pipe
C. 2.586 kg C. Individual Vent 26. Interceptor or clarifiers for sand and similar
D. 2.856 kg D. Back Vent heavy solid shall have a water seal of not less than? 35. Diameter of an individual vent shall not be less
A. 152 mm than 32mm nor less than ___ the diameter of the
9. Materials for soldering nipples. B. 102 mm drain it connects.
A. Bronze C. 51 mm A. one-fourth
B. Copper D. 205 mm B. one-half
C. Heavy cast red brass C. one-third
D. All of the above D. one-fifth
36. What particular section which mention that the 43. Except when specially approved by the 50. The develop length between the trap of a water D. none of the above
practice of RMP is limitless in pursuant to RA 1378. administrative, grease trap shall be installed for closet or similar fixture measured from the top of a
A. Section 102.1 facility that has approved rate flow of not less closet ring (closet flange) to inner edge of vent 58. Yoke vent connection with the vent stack shall
B. Section 102.3 than______ and more than_______. shall not exceed? have a minimum distance above the finish floor level
C. Section 102.2 A. 1.3 lps to 5 lps A. 1.5 m of not less than?
D. None of the above B. 1.3 lps to 3.4 lps B. 1.8 m A. 1.0 m
C. 1.3 lps to 2.5 lps C. 1.2 m B. 1.5 m
37. A gas that are produced inside the septic tank D. None of the above D. 1.0 m C. 0.5 m
that is a by-product of methane, classified as 44. Grease trap shall be required in an D. 1.2 m
poisonous gas. establishments except: 51. No cleanout required for trap arms 76 mm in
A. Methane A. Private living quarters diameter, the change of direction not exceeding?
B. Carbon monoxid B. Café A. 22 1/20
C. Hydrogen disulfide C. Bars and clubs B. 300
D. Hydrogen sulfide D. Hotel C. 450
D. 900
45. It shall be designed that the flow through such 59. Joints in vitrified clay pipe or between such pipe
38. It is caused by anaerobic bacteria which is device or devices shall at no time be greater than 52. A valve that shall remain sufficiently open during and metal pipe shall be joined with ____ for hub and
sometimes referred to as putrefaction accompanied the rated capacity of the grease trap. periods of flow to avoid screening of solids and spigot.
by bad odors. A. Flow control devices fibrous materials and shall not restrict capacities or A. Neoprene gasket
A. Decomposition B. Grease interceptor cause excessive turbulence during peak loads. B. Coupling
B. Stabilization C. Backwater valve A. Backwater valve C. Compression gasket
C. Digestion D. Check valve B. Check valve D. Union patente
D. Sedimentation C. PRV
46. No water jacketed grease trap or grease D. DC 60. Joints for hubless cast iron soil pipe and fittings
39. A horizontal screwed pipe having a size 19 mm interceptor shall be approved or installed. shall conform to appropriate _____ Installation
and smaller in diameter shall be supported A. True 53. Valves up to and including 51 mm in size shall be Standards and shall not be considered as slip joints.
approximately? B. False all? A. IAPMO
A. 1.5 m C. May be A. Brass B. ASTM
B. 1.2 m D. None of the above B. Copper C. AWWA
C. 1m C. Cast bronze D. ANSI
D. 3 m 47. An approved type grease trap may be used as a D. Lead
fixture outlet and the grease trap for a single fixture 61. Screwed pipe to Cast iron pipe shall be either
40. A horizontal screwed pipe having a size 25 mm when the horizontal distance between the caulked or threaded joints shall be made with
and larger in diameter shall be supported fixture outlet and the grease trap does not exceed approved?
approximately? ____ and the vertical tailpipe or drain does not A. Adapter fittings
A. 1.5 m exceed ____. 54. A valves sizes 102 mm or larger in diameter shall B. Coupling
B. 1.2 m A. 1.2 m , 0.75 m have? C. Shielded coupling
C. 3.0 m B. 1.5 m , 0.60 m A. Cast iron D. Union patente
D. 3.6 m C. 1.8 m , 0.75 m B. Brass
D. 1.0 m , 0.50 m C. Bronze metal 62. It is recommended for oil handling piping works
41. A horizontal copper tubing having a size 38 mm D. Cast brass in elastomeric gasketed and rubbering-ring joints
and smaller in diameter shall be supported 48. The term that shall mean and include each that comply with the applicable IAPMO Installation
approximately? plumbing fixture, appliance, apparatus or other 55. A kind of joints that shall be accessible except for Standard.
A. 1.5 m equipment required to be connected to or discharged vent and stacks, and is used in soil and waste stacks A. Neoprene gasket
B. 1.8 m into a grease trap. to provide for necessary contraction joints B. Coupling
C. 3.0 m A. Fixture of the pipes for high rise buildings. C. Shielded coupling
D. 3.6 m B. Drain A. Expansion joints D. Union patente
C. Interceptor B. Wiped joints
42. A horizontal copper tubing having a size 51 mm D. Trap C. Slip joints 63. The inlet and outlet pipe connections of
and larger in diameter shall be supported D. Ground joint manholes shall be made by the use of _____ no
approximately? closer than 0.30 meter from outside of the manhole.
A. 1.5 m 56. Factory made screw and of PVC adaptor fittings A. Neoprene gasket
B. 1.8 m 49. Slaughter houses and packing establishment are acceptable for use if thickness to? B. Flexible compression joints
C. 3.0 m from which considerable amount of grease and hair A. Schedule 10 C. Shielded coupling
D. 3.6 m feather s are likely to be discharge into the plumbing B. Schedule 40 D. Compression gasket
system shall be connected grease interceptor C. Schedule 80
through? D. Schedule 160
A. separator
B. screening device 57. Food waste from restaurant and commercial or
C. a pit industrial sink shall be connected in?
D. classifier A. serve by a single trap
B. separate trap
C. combine trap
64. Cleanouts installed under concrete or asphalt 71. Vertical piping may be round, square, or 78. It is a globe valve type that has a wide bearing 85. It is a system where it is recommended for large
paving shall be made accessible by ____ with hinged rectangular. surface producing good resistance to the cutting building where difficulty of providing natural
cover or extending the top cover with counter A. True effects of scale, dirt and other kind of foreign matter circulation of hot water is encountered. A used of
A. Strong yard boxes B. False found inside the pipe. mechanical device (centrifugal pump) used to
B. Polyethylene sheath C. Maybe A. Wedged shape circulate hot water to the plumbing fixtures.
C. Drain field D. Depends approval of AA B. Double disc valve A. Overhead feed system
D. Flashing C. Plug type disc valve B. Up-feed system
72. It is a sanitary sewer that conveys sanitary D. Conventional disc valve C. Air pressure system
65. Additional building sewer cleanouts shall be waste to a dispersal plant which pipes are laid D. Pump circuit system
installed not to exceed 15 meter on center in straight underground to a minimum depth of about 3 meters 79. It is a globe valve type that has a pressure tight
runs and for each aggregate change in direction depending upon the natural contour of the ground. bearing between disc and the seat recommended for 86. Type of water heating system where water is
exceeding ____. A. Intercepting/trunk line sewer cold water and any temperature services. confined within a system at low temperature.
A. 900 B. Tributary/contributing sewer A. Wedged shape A. Hot water space heating system
B. 1350 C. Storm drain B. Double disc valve B. Hot water supply system
C. 1800 D. Street sewer C. Plug type disc valve C. Hot water bathing system
D. 3600 D. Conventional disc valve D. Hot water sauna system
73. It is classified as an intercepting sewer branch
66. It must be periodically removed and properly where pipe is made of either vitrified clay or concrete 80. It is globe valve type valve that is used for 87. It is a type of water heating system where water
disposed off to some approved off-site location shall pipe laid in an open trench. It is generally various types of service on oil, gasoline, steam, and is not in a closed system which operates on much
be installed when required by the Administrative smaller in diameter installed not more than 3 meters hot or cold water. higher temperature.
Authority or the Health Officer. below the street grade and terminate into the A. Wedged shape A. Hot water space heating system
A. Wastewater holding tank intercepting sewer. B. Composition disc valve B. Hot water supply system
B. Sump pit A. Intercepting/trunk line sewer C. Double disc valve C. Hot water bathing system
C. Cistern B. Tributary/contributing sewer D. Plug type disc valve D. Hot water sauna system
D. Central sewage manhole C. Storm drain
D. Street sewer 81. Sometimes called as retention valve. 88. It is a kind of water closet in shape where it is
67. No ________ shall be connected to a private or A. Foot valve intended for installation on a limited space.
public sewage disposal system unless permission has 74. It refers to the pump that will discharge waste in B. Float ball A. Squat type
first been obtained from Administrative Authority the sump and transfer it to the house drain installed C. Gate valve B. Round type
A. Commercial food waste grinder overhead. It is necessary when the public sewer line D. Globe valve C. Elongated type
B. Aircon Wastewater was installed at a depth from 2 to 4 meters below D. Wash down type
C. Factory Wastewater the street level. 82. It is a valve that is used on cold water systems,
D. Industrial Wastewater A. Sewage ejector heating systems, compressed air lines and other
B. Catch basin pipelines with excessive pressure. 89. It is a kind of water closet in shape where it is
68. No permit shall be issued for the installation, C. Sump A. Globe valve more comfortable but occupies space, and has a
alteration or repair of any private sewage disposal D. Gutter B. Safety valve large amount of standing water inside the bowl
system or part thereof for any lot which can connect C. Butterfly valve that is more sanitary and easier to maintain.
with an existing public sewer fronting the lot. 75. What is the maximum percentage of the D. OS & Y valve A. Squat type
A. True suspended solid of the sewage is removed largely by B. Round type
B. False sedimentation to form a semi-liquid substance. 83. In hot water supply system, where the large pipe C. Elongated type
C. May be A. 70% of the installation is installed at the top of the riser, D. Wash down type
D. Need for approval to AA B. 80% and the diminishing pipe sizes passes through the
C. 60% lower floors. 90. It is the cheapest, the smallest, and the smallest
69. The sizing data for vertical conductors, leaders, D. 50% A. Overhead feed system form of water closet designed without water tank.
and drains is based on the pipes flowing ____. B. Up-feed system A. Squat type
A. 2/3 full 76. It is a type of gate valve that is used where the C. Air pressure system B. Pail flush type
B. 7/24 full stems must be installed pointing downward. D. Pump circuit system C. Wash down type
C. 1/3 full A. Wedged shape D. Direct flush type
D. Whole full B. Double disc valve 84. In hot water supply system, where the large pipe
C. Plug type disc valve is installed at the bottom of the riser and the 91. It considers the building density in the locality
70. It shall have at least the same cross-sectional D. Conventional disc valve diminishing sizes passes through the upper floors and the flammability of the structures and its
area as its equivalent round pipe, except that the of the building. contents.
ratio of its side dimensions shall not exceed 3 to 1. 77. Type of gate valve that closes in the same A. Overhead feed system A. Fire Code
A. Rectangular pipe manner of wedged type, except that its parallel faces B. Up-feed system B. Building Code
B. Square pipe drop in a vertical position and are forced apart by C. Air pressure system C. NFPA
C. Full circle the disc spreader. This type of valve is used in cold D. Pump circuit system D. Plumbing Code
D. Semi-circle liquid and sewage disposal installation.
A. Wedged shape
B. Double disc valve
C. Plug type disc valve
D. Conventional disc valve
92. Is a pipe installed in buildings not as part of the 100.Commercial standard length of a ductile cast
water supply or disposal system, but primarily for iron.
use as water conveyance in case of fire. A. 6.0 m
A. Standpipe B. 3.0 m
B. Wet pipe C. 4.0 m
C. Dry pipe D. 5.0 m
D. Fire hose

93. The spacing of sprinkler heads depends upon the Answer key
following conditions, except:
A. Fire rating of the building
B. Types of occupancy
C. Total area
D. Fire exit availability

94. It is defined as a receptacle used to catch

surface water drained from cemented courts,
driveways,
and athletic fields.
A. Yard catch basin
B. Garage catch basin
C. Drop inlet
D. Culvert

95. Description of the wall thickness of a rigid K

copper pipes.
A. Heavy duty
B. Medium duty
C. Annealed
D. Hard drawn

96. Description of the wall thickness of a rigid L

copper pipes.
A. Heavy duty
B. Medium duty
C. Annealed
D. Hard drawn

97. Description of the wall thickness of a rigid DWV

copper pipes.
A. Heavy duty
B. Medium/Light duty
C. Annealed
D. Hard drawn

98. Commercial standard length of a Cast iron hub

type.
A. 1.5 m
B. 3.0 m
C. 4.0 m
D. 5.0 m

99. Commercial standard length of a Cast iron

hubless type.
A. 1.5 m
B. 3.0 m
C. 4.0 m
D. 5.0 m