PLUMBING CODE 1. Storm water is?
a. Waste water b. Sea water c. Rain water d. Potable water
2. Refers to an individual who worked in the sanitary field of ancient Rome.
a. Plumbum b. Plumber c. Plumbarius d. Plum
3. Is a drain from two or three fixtures connected to a single trap?
a. Circuit vent b. Branch vent c. Common vent d. Continuous vent
4. Waste discharge by water closet is? a. Liquid waste
b. Water waste c. Solid waste d. Urine
5. Is a sewer line or system directly controlled by public authority?
a. Main sewer b. Sanitary sewer c. Private sewer d. House sewer
6. Air pressure in drainage pipes greater than atmospheric pressure?
a. Normal pressure b. Standard pressure c. Back pressure d. Barometric pressure
7. Refers to the maximum water discharge of fixtures in terms of fixture units?
a. Potable demand b. Minimum demand c. Total fixture units d. Maximum demand
8. The minimum allowable size of any drain, horizontal branch, vertical soil or waste stack serving one or more water closets shall be? a. 3 in
b. 4 in c. 5 in d. 2 in
9. The air pressure test for any threaded (low pressure) gas piping system shall be at least? a. 10 psi for 15 minutes
b. 15 psi for 15 minutes c. 10 ft head for 15 minutes d. 15 ft head for 15 minutes
10. Refers to the resistance produced by flowing water with fittings and interior surface of the pipe?
a. Force b. Friction c. Pressure d. velocity
11. What pressure is required to test water supply system?
a. 100% of used water pressure b. 150% of used water pressure c. 200% of used water pressure d. 250% of used water pressure
12. Combination of two chemical elements called hydrogen and oxygen?
a. Ice b. Water c. Liquid d. fluid
13. Refers to the pressure range measured over a period of 24 hours?
a. Static pressure b. Pressure
c. Normal pressure d. Critical pressure
14. The minimum pressure that should be maintained for fixtures containing flush tank supplies shall be?
a. 30 psi b. 8.0 psi c. 4.340 psi d. 0.434 psi
15. A device used to measure the amount of water that passes through the water service?
a. Water gauge b. Water tank c. Water stop d. Water meter
16. The valve for controlling two or more outlet in a cold water supply line may be a?
a. Heavy duty gate valve b. Full way gate valve c. Ground key valve
d. Non-rising stem globe valve
17. A material not listed in the code for use in water piping is?
a. Plastic b. Cast iron c. Aluminum d. Asbestos cement
18. The lowest piping system that receives the discharge from soil, waste and other drainage pipes is?
a. Building sewer b. Building drain c. Soil pipe d. Asbestos pipe
19. A set of regulation adapted by an administrative agency that has jurisdiction over material and design specification in plumbing?
a. Building code b. Civil code c. Code of ethics d. Plumbing code
20. It is inserted into the water main and it serves as the control of the water service?
a. Curb stop b. Corporation stop c. Water stop d. Meter stop
21. A mechanical device used to circulate hit water to the plumbing system?
a. Overhead feed system b. Up feed system c. Pump circuit system d. Hot water system
22. The waste test for drainage system shall be at least?
a. 15 psi b. 10 psi c. 15 ft head d. 10 ft head
23. Used on a smaller distribution system for elevating water in wells or other sources? a. Piston pump
b. Centrifugal pump c. Water pump d. Pumping station
24. The minimum quantity of water for flush urinals is?
a. 4 gallons b. 3 gallons c. 2 gallons d. 1 gallons
25. Located at the lower end of the pump used to prevent lost of priming the pump?
a. Foot valve b. Gate valve c. Angle valve d. Globe valve
26. A pipe from the street water main to the building served is?
a. MWSS b. Service pipe c. Distribution pipe
d. Water main distribution pipe
27. Actuated by stem screw, and hand wheel, suited on installation that calls for throttling?
a. Foot valve b. Gate valve c. Angle valve d. Globe valve
28. Minimum of number of water closet required at office 20 persons?
a. 1 b. 2 c. 3 d. 4
29. Minimum of number of water closet required at elementary school for 35 females?
30. A vertical pipe usually used for the storage of water, frequently under pressure?
a. Vent pipe b. Vertical pipe c. Stand pipe d. Waste pipe
31. A bowl or basin used for washing face and hands? a. Bathtub
b. Compartment sink c. Lavatory d. Mixing bowl 32. Fire prevention month?
a. April b. May c. March d. July
33. Considers the building density in the locality and flammability of the structures and its contents? a. Civil Code
b. Fire Protection c. Fire Code d. Fire Bureau
34. Always located near the stairs for use by firemen in case of fire?
a. Standpipe
b. Hydro pneumatic pump c. Fire hose
d. Fire tank
35. Refers to the piping installation where both the mains and the distribution pipes are constantly filled with water?
a. Standpipe b. Dry pipe c. Wet pipe d. Water pipe
36. Used as a terminal of the soil branch in each floor?
a. Aeration b. Deaerator c. Sovent system d. Ventilation
37. Installed at the bottom portion of the soil stack where the house drain is connected to receive the discharge from Aeration?
a. Aeration b. Deaeration c. Sovent system d. Ventilation
38. Recommended minimum size of p-trap for floor drain is?
a. 2” b. 3” c. 4” d. 1 ½”
39. The trap of the floor drain shall be placed not more than _________ centimeters below the
finished floor line, to facilitate cleaning in case of line trouble. a. 30 b. 40 c. 50 d. 60
40. Recommended grade or slope of a house drain? a. 3%
b. 2% c. 1% d. ½%
41. One fixture unit represents how many liters of water?
a. 20 liters b. 30 liters c. 40 liters d. 10 liters
42. No water closet shall discharge in to drain less than ____inches diameter pipe
a. 2 inches b. 3 inches c. 4 inches d. 2-1/2 inches
43. As per Plumbing Code on soil pipe, at least _____of the vertical stacks in the plumbing system must extended full size through the roof. a. 4
b. 3 c. 2 d. 1
44. Recommended size of waste pipe for urinal? a. 32 mm
b. 38 mm c. 40 mm d. 50 mm
45. Recommended size of waste pipe for bathtub? a. 32-38 mm
b. 38-40 mm c. 38-50 mm d. 40-50 mm
46. Recommended size of waste water pipe for drinking fountain?
a. 32 mm b. 38 mm c. 40 mm d. 50 mm
47. Number of fixture unit of floor drain for waste pipe?
a. 1 b. 2 c. 3 d. 4
48. Number of fixture unit of lavatory for waste pipe? a. 1
b. 2 c. 3 d. 4
49. Number of fixture unit of water closet for waste pipe?
a. 2 b. 4 c. 5 d. 6
50. Number of fixture unit of urinal for waste pipe? a. 2
b. 4 c. 5 d. 6
51. Support or anchorage of piping shall not exceed an interval of?
a. 10 ft b. 4 ft c. 12 ft d. 3 ft
52. The water demand for shower head is: a. 7.5 gpm
b. 5 gpm
c. 12 gpm d. 15 gpm
53. Expansion joints shall be acceptable except in piping for:
a. Vents b. Hot water c. Steam d. Cold water
54. Sizes of vertical and horizontal drainage pipe shall be determined from?
a. Type of building
b. Number of bathroom installed c. Location of fixtures
d. Total fixture units
55. The minimum allowable size of any building drain, horizontal branch, vertical soil or waste stack serving one or more water closets shall be: a. 4”
b. 4 ½” c. 3 d. 5
56. The air pressure test for any threaded (low pressure) gas piping system shall be at least a. 10 psi for 15 mins
b. 15 psi for 15 mins c. 10 ft for 15 mins d. 15 ft for 15 mins
57. A set of regulation adapted by an administrative agency that has jurisdiction over materials and design specification in plumbing?
a. Plumbing Code b. Code of ethics c. Building code d. Civil code
58. An electrically or mechanically operated device used to elevate sewage and liquid waste from a lower level to a point of discharge into a sewer or other disposal system.
a. Ejector b. Ram c. Compressor d. Hand pump
59. The force required to move water inside the pipe is called
a. Force b. Friction c. Velocity d. Pressure
60. The measure of inertia forces to viscous forces, which sometimes describe whether it is turbulent or laminar flow is
a. Reynolds number b. Froude number c. Moody number d. Weber number
61. A joint made by firmly packing with oakum and filled with molten lead to a depth of not less than one inch is for
a. Cast iron bell and spigot soil pipe b. Cast iron no hub pipe
c. Plastic pipe d. Steel pipe
62. The minimum slope of 3” horizontal pipe shall not be less than;
a. ¾ inch per foot b. ½ inch per foot c. 1 inch per foot d. ¼ inch per foot
63. What pressure is required to test water supply system?
a. 100% of used water pressure b. 150% of used water pressure c. 200% of used water pressure d. 250% of used water pressure
64. A vertical vent that is continuation of drain to which it connects is a
a. Branch vent
b. Continuous vent c. Relief vent d. Circuit vent 65. Roof joint shall be
a. Gas and water tight b. Air tight
c. Smoke tight d. Water tight
66. A stack as defined in the code is
a. The vertical main soil, waste or vent piping b. Any vertical vent
c. The main vent d. Horizontal main
67. All water supply, drainage venting system and all fixtures and their traps complete with their connection
a. Plumbing system b. Piping system c. Sewer system d. Sanitary system
68. Request for inspection by master plumber to the administrative authority are required to be made at least before the work to be tested.
a. 1 working day b. 3 working days c. 8 working days d. 12 working days
69. A drain connecting compartments of a certain fixture to its trap is called
a. Combination waste and vent b. Continuous waste
c. Special waste d. Indirect waste
70. The minimum pressure that should be maintained for fixtures containing flush tank supplies shall a. 8 psi
b. 4.34 psi c. 15 psi d. 0.434 psi
71. The static water pressure at the water meter is 80 psi, at the outlet 100 ft above the meter, the static water pressure would be approximately a. 80 psi
b. 60 psi c. 120 psi d. 35 psi
72. The inspection of gas piping system prior to covering or concealing such pipe is called a: a. Routine inspection
b. Hydro piping inspection c. Site inspection d. Rough piping inspection
73. A receptacle attached to the plumbing system other than a trap in which waste or waste maybe collected or retained for a ultimate discharge into plumbing system
a. Container b. Fixture c. Tank d. Cesspool
74. The valve for controlling two or more outlet, is a cold water supply line maybe a
a. Heavy duty gate valve b. Full gate valve c. Ground key valve d. Non-rising globe valve
75. According to existing plumbing code sat iron pipes, weld steel pipes, vertified clay, concrete and asbestos pipe shall conform to standard other than Philippine standard
a. ANSI b. AISC c. ASTM d. API
76. When connecting horizontal drain line with another drain line. The acceptable fitting to be used are
a. Coupling b. Cross tee
c. Combination Y and 1/8 bend d. Sanitary tee
77. A water system containing a water heater will require a
a. Mixing valve b. Heat water return line c. Pressure relief valve d. Check valve
78. The minimum size of water supply pipe for flush valve is
a. 2 inches b. 1 inch c. ¾ inch d. ½ inch
79. The national Plumbing Code was approved? a. June 18, 1955
b. June 18, 1954 c. January 28, 1959 d. January 18, 1956
80. The part of the plumbing system extending from a point 4 or 5 feet from the inner face of the foundation wall of the building to the junction with another sewer
a. House sewer b. Storm sewer c. Sanitary sewer d. Sewer pipe
81. The maximum fixture unit loading allowed on 38-inch waste stack is;
a. Four b. Six c. Sixteen d. Two
82. Fixture connections between drainage pipes and water closets shall be made with
a. Hot poured compound b. Flanges
c. Expansion joints d. Unions
83. Total number of water closets on a 3 inch stack is: a. Six
b. Three c. Four d. Two
84. The maximum trap loading for a 2 inch trap is: a. 1 unit
b. 2 units c. 4 units d. 8 units
85. Fixture vent pipe increased one pipe size its entire length
a. May exceed the maximum horizontal length limited by the code
b. Will increase the venting efficiently, thus preventing from backflow
c. Will be a better workmanship job
86. The distance between trap and vent should not more than
a. 5 ft b. 6 ft c. 7 ft d. 4 ft
87. The minimum size of clean-out allowed to serve a 4” drain line is
a. 3 ½ inches b. 2 inches c. 3 inches d. 4 inches
88. The distance between a water heater and union on the water lines shall not be more than a. 18 inches
b. 12 inches c. 6 inches d. 24 inches
89. The minimum quantity of water for flushing urinals is
a. 4 gallons b. 1 gallon c. 7 gallons d. 5 gallons
90. Urinal shall not be closer to _____meter center to center distance
a. 0.60 b. 0.75 c. 0.50 d. 0.40
91. Potable water supply piping are colored a. Blue
b. White c. Grey d. Cream
92. The vertical distance between the dip and the rim a. Deep seal
b. Seal c. Water seal d. Seal trap
93. If the vent is near any door, window, air shall or scuttle of a building, it should be extend over the highest opening by these much;
a. 3 ft b. 5 ft c. 4 ft d. 6 ft
94. Pipe flange that is not drilled for bolt holes a. Blind drill
b. Split drill c. Blank drill d. Point drill
95. Another term for interceptor a. Basin
b. Clarifier c. Calorimeter d. Calorifier
96. Calked on the closet rings shall be designed to be ____tight
a. Water b. Gas and water c. Gas
d. None of the above
97. ______mm diameter may have a slope of not less than 0.5%
a. 100 b. 150 c. 50 d. 200
98. Water pipe joints shall be installed not less than ____meters away from sewer line
a. 3 b. 1.5 c. 1 d. 15
99. Plastic pipe joined by solvent cementing shall comply with appropriate standards
a. AIPMO b. ASTM c. PSME d. PICE
100. Restaurant kitchen shall be galvanized sheet steel of not less than no. ____gauge or 1/16 mm a. 12
b. 16 c. 14 d. 20
101. Septic tank should be at least _________meters away from any source of water supply wells a. 20
b. 10 c. 15 d. 25
102. The National Master Plumbing Association of the Philippines (NAMPAP) was organized and
registered with the Securities and Exchange Commission in what year?
a. 1933 b. 1934 c. 1935 d. 1945
103. A registered Master Plumber shall not injure falsely or maliciously, directly or indirectly, the reputation of another registered Master Plumber by reviewing his/her work for the same client unless the professional services of the former have been officially ______and all professional fees have been fully paid by the client.
a. Endorsed b. Accepted c. Terminated d. Completed
104. When shower interceptors are built above ground, the sub-floor and rough side of walls to a height of no less than ____mm above the top of the finished dam or threshold shall be first lined. With sheet lead or copper or with other durable and water tight material.
a. 25 b. 75 c. 105 d. 50
105. In water test, the water shall be kept in pipe system or in portion under test for at least ______minutes before inspection starts. The system shall be tight at all joints.
a. 20 b. 10 c. 15 d. 3
106. What is AVB in backflow prevention devices? a. Atmospheric Volume Breaker b. Atmospheric Vacuum Breaker c. Atmospheric Velocity Breaker d. Atmospheric Valve Breaker
107. When potable water is discharge to the drainage system, it shall be by means of approved air gap of 2 pipe size diameter from the supply of the outlet and top surface of the drainage inlet, but in no case shall be less than ____mm
a. 25 mm b. 50 mm c. 32 mm d. 55 mm
108. Potable water inlet to gravity tank shall be controlled by a ___ float switch or electrode type of level water level control to prevent the tank from overflow.
a. Foot valve b. Float valve c. Check valve d. Gate valve
109. What is water fixture supply unit of privately use bathtub?
a. 1 b. 2 c. 3 d. 4
110. Bell and spigot cast iron soil pipe (CISP) and other similar joints shall be firmly packed with oakum or hemp and filled with molten pig lead to n depth of not less than ____mm.
a. 25.4 b. 50.2 c. 10 d. 13
111. Solder and fluxes with lead content which exceeds______ are prohibited in the piping systems used to conveyed potable water. a. 0.003
b. 0.002 c. 0.001
d. 0.008
112. What is CS and PS means?
a. Commercial Specification and Product Specification
b. Commercial Standards and Product Standards
c. Commercial Systems and Product Systems d. Commercial Sizes and Product Sizes 113. A stop valve place in service pipe near its
connection with the water main is called: a. Service cock
b. Corporation cock c. Stop cock d. Gate valve
114. Plastic pipe shall be supported at every ____interval
a. 1 meter b. 2 meters c. 1.5 meters d. 1.4 meters
115. Supports of cast iron soil pipe shall be adequate to maintain alignment and to prevent sagging and shall be placed within ___meter of the hub or joint.
a. 0.65 b. 0.55 c. 0.5 d. 0.45
116. A valve or opened by the fall and rise respectively, of an attached ball floating on the surface a. Check valve
b. Ball cock c. Float valve d. Gate valve
117. Minimum air gaps for water distribution of sinks and laundry trays when affected by side walls. a. 55 mm
b. 57 mm c. 25 mm d. 50 mm
118. Water inlets to water supported aspirators shall be equipped with a listed atmospheric vacuum breaker mounted at least ___ mm above the aspirator unit.
a. 125 b. 152 c. 251 d. 521
119. Number of water fixture unit for sink or dishwasher (private use)
a. 1 b. 2 c. 3 d. 4
120. The rim over which water would spill on the floor. a. Floor level
b. Flood level c. Air gap d. Air vent
121. What is right term for plugging an opening with oakum, lead or other materials that are pounded into the annular space?
a. Capping b. Calking c. Caulking d. Choking
122. It is a valve in which the flood of liquid is cut off by means of circular disc that fits over and against the horizontal valve seat. The movement of the plane of disc is parallel to the normal direction of flow of water.
a. Gate valve b. Check valve c. Foot valve d. Butterfly valve
123. In plumbing, a secondary pipe line. In sewage, a common sewer to which no other branch sewer is
connected. It receives sewage from building sewer service connection only.
a. House drain b. Soil pipe c. Yoke vent d. Lateral
124. Refers to the public water system laid underground along the street where house service is connected
a. Water main b. MWSS c. NAWASA d. Supply line
125. A pipe between the water meter to the fixtures a. Soil pipe
b. Distribution pipe c. Horizontal pipe d. Service pipe
126. A pipe, which convey only waste water or liquid waste free of fecal matters.
a. Waste pipe b. Soil pipe c. Vertical pipe d. House drain
127. The hubless is used in lieu of the pipe when caulking and jointing of the pipe is quite difficult. The hubless pipe (cast iron) is easily joined by use of _______
a. Neoprene rubber sleeves b. Lead
c. Oakum d. Solvent Cement
128. The minimum width of septic tank a. 0.90
b. 0.80 c. 1.0 d. 0.70
129. The commercial size of cast iron pipe is______. a. 1.80 L
b. 2.00 L c. 1.50 L d. 1.60 L
130. Copper tubing shall be supported at each storey or at a maximum interval of ____meters on center.
a. 3.50 b. 3.20 c. 3.00 d. 2.50
131. A plumbing permit issued under the plumbing code shall expire and become null and avoid if the plumbing work so authorized is suspended or abandoned at any time after having been commenced for a period of _____days
a. 120 b. 360 c. 240 d. 100
132. Copper tubing shall be supported at approximately ____meters interval for piping 38 mm diameter and smaller
a. 1.5 b. 1.8 c. 1.2 d. 1.6
133. All shower compartments, regardless of shape shall have a minimum finished interior area of ___ square meter and shall be capable of encompassing a 762 mm diameter circle. a. 0.60
b. 0.80 c. 0.70 d. 0.90
134. The water used test shall be obtained from a potable source of supply. A ____ Kpa air pressure may be substituted for the water test.
a. 443.5
b. 334.5 c. 344.5 d. 433.5
135. Water closet and urinal tank shall be listed with a ballcock. The ballcock shall be installed with a critical level atleast ____ mm above the full opening of the overflow pipe.
136. No galvanized wrought iron or galvanized steel pipe shall be used underground and shall be kept at least ____mm above the ground.
a. 125 b. 152 c. 364 d. 176
137. Thread on plastic pipe shall be factory cut or molded. Threaded plastic pipe shall be schedule ____min. wall thickness.
a. 40 b. 80 c. 120 d. 60
138. It is a physical separation, which may be a low inlet into indirect waste receptor from the fixture, appliances or device indirectly connected. a. Air gap
b. Air break c. Air barrier d. Air curtain
139. No building sewer or other drainage piping or part thereof, constructed of materials other than approved for use or within the building shall be installed under or within ____meters for any building or structure.
a. 0.60 b. 0.70 c. 0.50 d. 0.40
140. Each cleanout in piping 51 mm or less in size shall be installed so that there is clearance of not less than ____mm, in front of the cleanout.
a. 504 mm b. 102 mm c. 305 mm d. 50 mm
141. Any two or more similar adjacent fixtures which discharge into a common horizontal soil or waste branch.
a. Back to back fixtures b. Side by side fixtures c. Group of fixtures d. Battery of fixtures 142. Sanitary engineering law
a. RA 1378 b. RA 1364 c. RA 1368 d. RA 8495
143. In case, of renewal of plumbing permit, a fee of equivalent to ____ of the original fee.
a. ½ b. ¾ c. 1
d. None of the above
144. A tee with branch tapped to receive a threaded pipe or fittings
a. Branch tee b. Closed tee c. Threaded tee d. Tapped tee
145. A water closet consisting of a continuous through containing water.
a. Privy b. Latrine c. Squat type d. Continuous closet
146. An outhouse or structure used for the deposition of excrement.
b. Septic c. Catch basin d. Latrine
147. The code of sanitation of the Philippines with Implementing Rules and Regulations.
a. PD 568 b. PD 658 c. PD 856 d. PD 865
148. A pipe joint obtaining by jointing metal parts with metallic mixtures which melts at a temperature below 427o C and above 149o C.
a. Brazing b. Soldering c. Welding
d. GMADW
149. A metallic sleeve, calked or join to opening in a pipe, into which a plug is screwed that can be removed for cleaning or examining the interior of the pipe.
a. Flange b. Ferrule c. Threaded pipe d. Cast pipe
150. Normally, a _____mm/hr rainfall intensity is used around in Metro Manila.
a. 100 / 102 AS PER RNPCP b. 450
c. 150 d. 175
151. A vertical vent that is continuation of the drain to which it connects is a ____
a. Branch vent b. Relief vent c. Continuous vent d. Circuit vent
152. A piping system designed to control and convey excess ground water to a suitable location. a. Storm water drainage piping b. Sewer piping
c. Vertical stack d. Downspout
153. A unit which is equivalent to the flow rate of one (1) cubic foot of water per minute or 7 ½ gpm of water.
a. Fixture unit
b. Number of water closets c. English unit
d. Metric unit
154. A fixture designed for the washing of hands or face, sometimes called washbasin.
a. Sink b. Lavatory c. Bathtub d. Shower
155. When no public sewer intended to serve any lot or premises is available in any thoroughfare or right of way abutting such lot or premises, drainage piping from the building shall be connected to:
a. Sewage ejector b. Holding tank
c. Private sewage disposal system d. Cesspool
156. A condition in the distribution system where it could damage, or create condition that will damage components of the distribution system or create a nuisance is termed as;
a. Excessive water pressure b. Loss of pressure c. Excessive air pressure d. Loss of water flow
157. Air pressure in drainage pipes greater than atmospheric pressure.
a. Standard pressure b. Normal pressure c. Back pressure
d. Barometric pressure
158. No clerical toilet shall be installed in any building unless first approved by the
a. Health officer b. Architect c. Building and safety d. Zoning administrator
159. No clevical toilet shall be installed in any building unless first approved by the
a. Health officer b. Architect c. Building and safety d. Zoning administrator
160. All water supply, drainage, venting system and all fixtures and their traps complete with their connection.
a. Plumbing system b. Piping system c. Sewer system d. Sanitary system
161. The minimum size of water supply pipe to a lavatory is:
a. 1 diameter b. 2/4 diameter c. 3/8 diameter d. ½ diameter
162. Request for inspection by the master plumber to the administrative authority are required to be made in advance at least before the work to be tested.
a. 12 hrs b. 24 hrs c. 36 hrs d. 8 hrs
163. The vertical distance that waste travels through open air between waste pipe and the indirect pipe waste receptor is
a. Connection b. Air gap (connection) c. Conveyance d. Vacuum
164. A means of measurement for vertical waste or soil stack. It is equal to each floor level or storey in a building but are always least eight feet intervals
a. Vertical distance b. Floor distance c. Branch interval d. Storey
165. A drain connecting the compartments of certain fixture to its trap is called
a. Combination waste and vent b. Continuous waste
c. Special waste d. Indirect waste
166. A pipe fitting used to reduce the size of an opening is called a
a. Cap b. Union c. Nipple d. Bushing
167. The minimum pressure that should be maintained for fixtures containing flush tank supplies shall a. 8 psi
b. 4.34 psi c. 30 psi d. 0.434 psi
168. A piece of metal fitted under another piece of that metal or wood over which water is expected to run is called
a. Gutter b. Sheeting c. Flashing d. Roofing
169. When connecting plastic pipe to other types of piping, the specific transition intended shall be made with approved:
a. Soldered joint b. Threaded joint c. Fitting & Adapter d. Sweated joint
170. The inspection of a gas piping system prior to covering or concealing such pipe is called a. Routine inspection
b. Hydro piping inspection c. Site inspection d. Rough piping inspection
171. Copper tubing used for water piping under concrete slab within a building shall be
a. Copper tube with brazed joints b. Brazed joints with cast brass fitting c. Installed without joints where possible d. Protected with factory applied coating 172. The static water pressure at the water meter is 80
psi. at the outlet 40 ft above the meter, the static water pressure would be approximately
a. 80 psi b. 60 psi c. 120 psi d. 40 psi
173. Vent pipes may offset horizontally when the distance above the extreme overflow level of the fixture is at least:
a. 1 inch b. 5 inches c. 18 inches d. 1 foot
174. The minimum plumbing permit charge for one “unit” is;
a. P 15.00 b. P 5.00 c. P 10.00 d. P 7.00
175. A drainage pipe use to carry main or surface water, cooling water and similar liquid waste is a. House drain
b. House sewer c. Sanitary sewer d. Storm sewer
176. Cast iron piping is 10 ft length installed horizontally, shall be supported at intervals of not more than
a. 12 ft b. 15 ft c. 5 ft d. 10 ft
177. The flow of water which has gradual and regular variation over time and space is called
a. Laminar flow b. Streamline c. Turbulent d. Mixed flow
178. The minimum size building supply allowed by the code for water is
a. ¾ inch b. 1 inch c. ½ inch d. 1 ¼ inch
179. The critical level marking or backflow prevention device or vacuum breaker is a point established by the
a. Testing laboratory b. Health officer c. Inspector d. Manufacturer
180. CPVC water pipe maybe used for hot and cold water distribution systems
a. Above ground only b. Below ground only c. In residence only d. Within a building
181. Plugging an opening with oakum, lead or other materials that are rounded into place.
b. Filing c. Compressing d. Compacting
182. It is a box like collection device which is located on the exterior of the building and receives storm water on one side?
a. Scupper b. Gutter c. Storm drain d. Roof drain
183. Caulked or screwed joints shall be applicable to _______
a. PVC b. Cast Iron c. Vitrified Clay d. Asbestos Pipe
184. The vent pipe serving a combination waste and vent system with a 4” drain pipe shall be at least: a. 2 ½ inches
b. 3 ½ inches c. 3 inches d. 2 inches
185. Building sewer shall be tested by completely filing the sewer with water from the _____
a. Lowest to atleast 10 ft head b. Lowest to the highest point c. Lowest to atleast ground level d. Lowest to atleast 5 ft head
186. In the water supply piping slip joints may be used only on the _____
a. Cold water supply b. Concealed fixture c. Exposed fixture supply d. Hot water supply
187. The drainage pipe running from outside a buildings foundation to the main sewer is called ______
a. Building drain b. Sewer c. Waste drain d. Storm drain
188. The maximum lead content allowed in pipe used to convey potable water
a. 3 percent b. 2 percent c. 1 percent d. 8 percent
189. Is it permissible to place building sewer and drainage piping in the same trench with the water service pipe
a. Yes b. No c. Maybe yes d. Sometimes, yes
190. Upon issuance of plumbing permit, plumbing installation shall commenced within
a. No limit b. One month c. One year d. Six months
191. An automatic fill device, most commonly found in toilet tanks
a. Globe valve b. Ball cock c. Butterfly valve d. Gate valve
192. A vertical pipe to convey main waste a. Drain pipe
b. Conductor, leader or downspout c. Vent pipe
d. Soil pipe
193. The drainage system is subdivided into 8 different components, drainage, the waste, and the vent. This is referred to as
a. Sanitary sewer system b. Storm sewer c. DWV system
d. Vent system
194. That part of plumbing system extending from point 4 or 5 feet from the inner face of the foundation wall of building to the junction with another sewer
a. House sewer b. Storm sewer c. Sanitary sewer d. Sewer pipe
195. Equipment which includes all valves and controls used in the plumbing system which are required to be accessible or readily accessible is called____ a. Machine
b. Controls
c. Regulating Equipment d. Pipes
196. Rainwater piping located on the exterior of a building using galvanized sheet metal shall not be less than______
a. 25 ga b. 32 ga c. 28 ga d. 30 ga
197. A term used which is contrary to sanitary principle or injurious to health is _____
a. Insanitary b. Unhealthy c. Healthful d. Sanitary
198. The maximum fixture unit loading allowed on 2-inch waste stack is;
a. Four b. Six c. Sixteen d. Eight
199. What valve is required a head of each water supplied appliance, each slip joints or non-metallic connection?
a. Flow valve b. Check valve c. Control valve d. Solenoid valve
200. When pipe makes an angle of not more than 45 degrees with the vertical, it is considered as? a. Vertical pipe
b. Diagonal pipe c. Crooked pipe d. Horizontal pipe
201. A vent in a combustion waste and vent system shall be approximately equal in area to one half. a. Area of the house sewer
b. Cross section area of the draw pipe c. Area of the public sewer
d. Diameter of the draw pipe served 202. DWV material means
a. Drainage, water vents b. Drainage water valve c. Drum waste valve d. Drainage, waste and vent
203. Every passageway to an attic water heater shall have a solid continuous flooring not less than a. 36 inches wide
b. 48 inches wide c. 60 inches wide d. 24 inches wide
204. Every building in which plumbing fixture are installed shall have connection to a :
a. Deywell b. Cesspool c. Storm sewer d. Public or Private sewer
205. Allowing for friction and other pressure loss the available water pressure for fixture is
a. 30 psi b. 20 psi c. 15 psi d. 45 psi
206. The movement of water to the surface of a soil and into the soil below the surface is
a. Storm meter run off b. Depression c. Evaporation d. Infiltration
207. The size of supply piping outlet for any gas appliance shall be not less than
a. The smallest size pipe in the system b. The inlet connection of the appliance c. ¾ inch of total length is 30 ft d. One inch to allow future expansion 208. The quantity of water required to be supplied to
every plumbing fixture shall be represented by: a. Pound per square inch
b. Gallons per minutes c. Fixture units d. Feet per second
209. A pit or receptacle at a low point to which the liquid waste are drain
a. Canal b. Sump c. Tank d. Cistern
210. A fixture vent pipe increased one pie size its entire length
a. May exceed the maximum horizontal length limited by code
b. Will be better workmanship job c. Will increase venting efficiency d. Will reduce the cost of installation 211. Fee for one unit of plumbing as plumbing permit
is: a. P 5.00 b. P 15.00 c. P 12.00 d. P 10.00
212. A storm drain sometimes located under the basement floor within the walls of the building a. Inside storm drain
b. House sewer c. Outside storm drain d. Inside sewer
213. What is the interval distance between clean-out along lateral line?
a. 15 m b. 48 m c. 10 m d. 6 m
214. Which type of fire line installation has become obsolete and seldom installed?
a. Automatic system b. Wet standpipe c. Local vent d. Dry standpipe
215. Generally, what is the standard diameter of standpipe for buildings more than six stories tall? a. 9”
b. 4” c. 6” d. 10”
216. A pressure regulator should be installed when pressure exceeds
a. 75 psi b. 80 psi c. 85 psi d. 90 psi
217. What is the copper content in brass fitting? a. 80%
b. 85% c. 90% d. 95%
218. Is a device located at the bottom of the tank for the purpose of flushing water closet and similar fixtures
a. Gate valve b. Flush valve
c. Flushometer valve d. Flush tank
219. The lowest portion of the interior part of any pipe or conduit that is not vertical
a. Leader b. Lateral c. Grade d. Invert
220. What is the maximum height for the Hose Cabinet to be installed from the floor line?
a. 6 ft b. 8 ft c. 5 ft d. 4 ft
221. A structure built, erected and framed of component structure parts designed for the housing, shelter, enclosure or support of person, animals or property of any kind.
a. Building b. Catch basin c. Court d. Park
222. A pipe connected from building gutter to the downspout
a. Header b. Conductor c. Latrine d. Privy
223. A term used to described soil or waste system where all piping are threaded pipe tubing or other rigid construction using recessed drainage fitting to correspond to the types of piping
a. Drainage System b. Durham System c. Piping System d. Waste Pipe System
224. Generally, what is the standard diameter of standpipe for buildings two or three stories in height?
a. 4” b. 6” c. 3” d. 2”
225. The pressure available at the fixture or water outlet, allowance is made for pressure drop due at friction loss, head, meter and other losses in the system during maximum demand period a. Pressure
b. Residual Pressure c. Static Pressure d. Pressure Loss
226. In a line of piping is a combination of elbows or bends, which brings one section of the pipe out of line but into a line parallel with the original section.
a. Dead end b. Offset c. Drain d. Flooded
227. An open, unoccupied space, bounded on two(2) or more sides by the walls of the building. An inner court is a court entirely within the exterior walls of the building. All other courts are outer courts.
a. Court b. Alley c. Park d. Yard
228. A non-watertight lined excavation in the ground which receives the discharge of a sanitary drainage system or part thereof, designed to retain the organic matter and solids discharging therefrom, but permitting the liquid to seep through the bottom and sides of the cesspool. a. Chase
b. Cesspool c. Privy
d. Receptor
229. An approved plumbing fixture or device of such materials, shape and capacity to adequately receive the discharge from indirect waste pipes, constructed and located to readily cleaned a. Rim
b. Receptor c. Riser d. Revent Pipe
230. The normal force exerted by a homogeneous liquid or gas per unit of area on the wall of the container
a. Pitch b. Static head c. Friction loss d. Pressure
231. An impairment of the quality of the water to a degree which creates hazard to the public health and adversely affects the aesthetic and potable qualities of waters for domestic use.
a. Pollution b. Quality of water c. Potable water d. Defects
232. Tube made of plastic material and colored black. The cross-sectional shape is circular and is denotes by its outside diameter or O.D.
a. PB or Polybutylene b. PVC or Polyvinylchloride c. PE or Polyethylene
d. ABS or Acrylonitrile-Butatiene-Styrene 233. In what year, NAMPAP President Jaime M. Cabase
spearhead the updating of the Revised National Plumbing Code?
a. 1999 b. 2003 c. 1980 d. 1996
234. Number of lavatories for Assembly Places(Theather, Auditorium, Convention Halls,etc) for public use for 350-female
a. 1 b. 2 c. 3 d. 4
235. In 1902, he was the first Chief of Plumbing Construction and Inspection
a. Emilio Aguinaldo b. John F. Hass c. Ramon Magsaysay d. General Harrizon
236. Consists of a loaded air inlet valve, an internally loaded check valve, two properly located test cocks and two isolation gate valves.
a. PVB or Pressure Vacuum Breaker Backflow Prevention Assembly
b. RP or Reduced Pressure Principle Backflow Prevention Assembly
c. DC or Double Check Valve Backflow Prevention Assembly
d. AVB or Atmospheric Vacuum Breaker 237. Number of urinal for Office for 420 person
a. 5 b. 2 c. 4 d. 7
238. Revised Plumbing Code of 1999 was approved by President Joseph Estrada
a. December 21,1999 b. October 12, 1999 c. June 2, 1999 d. August 18,1999
239. Plumbing Code for the City of Manila a. City Ordinance 4121
b. City Ordinance 1124 c. City Ordinance 2411 d. City Ordinance 1241
240. Drainage Fixture Unit of water closet, public installation
a. 6 b. 3 c. 4 d. 1
241. When President Ramon Magsaysay did signed the R.A. 1378, otherwise known as the “PLUMBING LAW OF THE PHILIPPINES”?
a. June 8, 1959 b. June 28, 1699 c. June 18, 1955 d. June 8, 1599
242. Type of Joints for soft copper water tubing shall be made with fittings meeting approved standards. The tubing shall be expanded with a proper flaring tool.
a. Flared joints b. Solder & Sweat joints c. Cement Mortar Joints d. Burned Lead Joints
243. National Plumbing Code prepared by NAMPAP was Promulgated and approved by Malacanang a. June 18, 1955
b. June 8, 1959 c. January 28,1959 d. January 18, 1955
244. Drainage Fixture Unit of sink, bar, private 38 mm min waste
a. 1 b. 2 c. 3 d. 4
245. Birth of Plumbing practice in the Philippines a. 16th Century
b. 17th Century c. 18th Century d. 19th Century
246. Approval of House Bill No. 962 also known as RA No. 1378
a. 1978 b. 1852 c. 1954 d. 1935
247. The indirect waste lines carrying refrigeration waste shall not be smaller than one (1) inlet serving not more than 2.8 mm3 of refrigeration space.
a. 32 mm b. 51 mm c. 76 mm d. 62 mm
248. Each grease trap shall have an approved water seal of not less than _____in depth or the diameter of its outlet, whichever is greater a. 38
b. 64 c. 76 d. 51
249. Cleanouts may omitted on short horizontal drainage pipe installed at a slope of _____ or less from the vertical line ( or an angle _____bend) and;
a. 72 degree ; 1/5 bend b. 45 degree ; 1/8 bend c. 60 degree ; 1/6 bend d. 22 ½ degree; 1/16 bend
250. Sizing of rainwater piping for two adjacent walls- add _____of the total wall areas to the roof area a. 45 %
b. 50% c. 60 % d. 35%
251. Access to each septic tank shall be provided by at least two(2) manholes _______ in minimum dimension or by an equivalent removable cover slab.
a. 545 mm b. 508 mm c. 450 mm d. 445 mm
252. All septic tank covers shall be capable of supporting on earth load of not less than ______ when the maximum coverage does not exceed 9m.
a. 14.4 kPa b. 15.3 kPa c. 18.3 kPa d. 16.2 kPa
253. Interceptors or clarifiers for sand and similar heavy solids shall be so designed and located as to be readily accessible for cleaning and shall have a water seal of not less than ____ deep. a. 152 mm
b. 120 mm c. 135 mm d. 145 mm
254. Air test, air is forced into the pipe system until there is a uniform gauge pressure of _____ or sufficient to balance a column of mercury 254 mm in height.
a. 34.5 kPa b. 43.5 kPa c. 35.4 kPa d. 45.3 kPa
255. No galvanized wrought iron or galvanized steel pipe shall be used underground and shall be kept at least ___ above ground.
a. 125 mm b. 150 mm c. 152 mm d. 251 mm
256. Dome-type strainers shall have a minimum total net inlet area of ________times the area of the outlet pipe to which it is connected.
a. One and one-half b. Two and one-half c. One