Master Plumber Review (Random).PDF

SPLBE – MASTER PLUMBER 2015

1. Which of the following types of fixtures can be served by a combination waste and vent system?A. UrinalsB. ToiletsC. SinksD. Bidets

2. Increasing vents by one pipe size will:

A. provide increased drainageB. allow a uniform installationC. allow vents of longer lengthsD. allow vents to be shorter

3. _____________ may be used either for the collection of water without consideration of pressure, or for storing water under air pressure or under a static head for future distribution by pneumatic or gravity means. Materials are PVC, G.I., reinforced concrete, stainless steel or plain steel. A. CISTERN/ CISTERN TANKB. WATER TANKC. WATER DAMD. COFERDAM

4. How much is the plumbing permit fee for one lavatory in excess of the one unit minimum required? Follow the National Building Code.A. 6.00B. 4.00C. 2.00D. 1.00

5. A valve known as a stop is a: A. full port valveB. restrictive port designC. non directional valveD. rising stem design

6. A kind of plastic pipe which has excellent chemical, crush and fire resistance, high impact and tensile strength and is nontoxic; used for hot and cold water applications.a. Polyvinyl chlorideb. Chlorinated polyvinyl chloridec. Unplasticized polyvinyl chlorided. polypropylene


7. A 4” diameter stainless steel pipe is 26.5 m (86.9 feet) in length andrequires hangers to be placed at 1.6 m (5.25 feet) intervals. How manyhangers are required to support the pipe with hangers at both ends of therun?

A. 16B. 17C. 18D. 19

8. What will be the result when a 4" pipe will be reduced in size in the direction of flow?a. The waste will travel faster which will allow for better cleaning of the pipe.b. This could cause blockage to build up at the reduction pointc. This could cause slugging in the waste systemd. This will have no effect in the drainage system.

9. This pumps are used in applications where excess water must be pumped away from a particular area.a pump used to remove water that has accumulated in a water collecting sump pit,

A.JET (EJECTOR) PUMP B.SUMP PUMP C.TURBINE PUMP D.PISTON PUMP

10. What procedure is used to determine if additional PPE is required for aspecific task on a jobsite?

A. Ask the site foreman.B. Complete a hazard assessment.C. Observe what other workers are wearing.D. Request information at next tool box meeting.

11. Advantage of Using Rain water is?A. Water is soft & pure and is suitable for the hot water supply system B. Water is available everyday C. Water that is natural and purified by natural means D. None of the above

12. The valve for controlling two or more outlet in a cold water supply line maybe a:

A. Rising stem gate valveB. Heavy duty globe valve


C. Ground key valveD. Non-rising stem globe valve

13. Cast Iron piping 10 ft in lengths installed horizontally, shall be supported at intervals not more than.

A. 12 ft B. 15 ft

C. 5 ft

D. 10 ft

14. A 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?A. 110 liters B. 100 liters C. 120 litersD. 140 liters

(3600÷24hrs= 150L/h x 80% DF = 120L/h)

15. A reservoir, tank or vessel for storing or holding water or other liquidsA. CISTERN/ CISTERN TANK B. WATER TANK C. WATER DAM D. COFERDAM

16. The best solder for brazing/soldering joints is.A. AlloyB. 95-5 tin antimonyC. 50-50 tin alloyD. lead

17. The most common type of PVC and steel type based on their wall thickness is rated as.A. schedule 10B. schedule 40C. schedule 50D. schedule 80

18. Flux can only be used in brazing process whenA. Brazing copper to brassB. Brazing coper to copperC. Not allowedD. Both A & B


19. Plumbing pipe color coded in Aqua-Blue stripe or band is identified asA. gas pipeB. raw water pipeC. potable water pipeD. air pipe

20. Water for domestic use comes from these source exceptA. ground waterB. rain waterC. surface waterD. sea water

21. A male adapter is .A. internal threadB. external threadC. a slip-joint nut and washerD. a threaded cover

22. Every exposed trap must ____.

a. be self-cleaningb. have inadequate trap seal in order to caused trap seal lossc. not provided with a removable clean out plugd. not able to retain large amount of waste water

23. What do you call this valve installed at the solution line of a pump to prevent the loss of prime of the pump.A. check valveB. flopper valveC. float valveD. foot valve

24. Turbidity may be associated with what characteristic of water?

a. chemicalb. physicalc. biologicald. radiological

25. The effective thread length of a 3/4" diameter screwed steel pipe is.A. 1 1/4" longB. 1/2" long


C. 1" longD. 3/4" long

26. Plays an important part in the plumbing system, providing this is the most critical utility requirement, and also known as a "Universal Solvent"A. Sewage B. Water C. Chloride D. Purified water

27. 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 steelpipes, which is the best solution for this problem?A. Passing the water through a bed of crushed marble or limestone to achieve alkalinity, or adding sodium silicate.) B. Chlorination for removing salt contents C. Aeration D. Non of the above

28. In back to back fixture connection, the following maybe used except ____.

a. double sanitary teeb. double wye combinationc. double inverted wyed. double tapped tee

29. When silt and dirt is removed from water, the process is calledA. siltationB. sedimentationC. screeningD. filtration

30. The minimum quantity for flushing urinal:A. 4 gallonsB. 6 gallonsC. 7 gallonsD. 2 gallons

31. To complete a PEX, PEX connection, the fitting is inserted into the PEX tubing andA. solderedB. threaded


C. crimpedD. solvent welded

32. An operating gate valveA. uses a rubber washerB. uses a lever handleC. makes it acceptable for gasD. none of the above are correct

33. A tapered pipe thread used in the plumbing industry complies withA. national pipe thread standardsB. straight pipe thread standardsC. standard pipe threads standardsD. beveled pipe thread standards

34. These are dug with earth augers are usually less than 30 meters (100 ft) deep. The diameter ranges from 2 to 30 inches. The well is lined with metal, vitrified tile or concrete.

A.DUG WELLS B.BORED WELLS C.DRIVEN WELLS D.SHORE WELLS

35. What is the best fixture for a public comfort room

A. gatevalve B. flushometer C. faucet D. none of the above

36. What would happen if there were no air supply from the vent on the roof?

a. Smells from the sewer would enter the system.b. Waste water would not flow out.c. Nothing, it is used mainly to add rainwater to the systemd. both a & c

37. What would be the result of a partially plugged bypass orifice in a flushometer?A. Short flush cycle.B. Long flush cycle.C. Constant flushing.D. No flushing.


38. Six equally spaced lav’s are to be installed along a wall that is 530 cm long and will be vented with dual vents. Determine the center to center distance between vents if the fixtures are each 51 cm wide.

a. 133cmb. 166cmc. 177cmd. 188cm

(1 vent serving 2 lavs, 6 lavs = 3 vents. 530/3=177)

39. On a private domestic water system, what would the usual cut-in and cut-out pressures be set at?A. 103 kPa and 241 kPa / 15 psi and 35 psiB. 138 kPa and 207 kPa / 20 psi and 30 psiC. 207 kPa and 345 kPa / 30 psi and 50 psiD. 241 kPa and 380 kPa / 35 psi and 55 psi

40. what is the common type of water distribution system? This method is dependent on the pressure provided by the water main & involves a minimum and type of components such as overhead tank & pressure tank.

a. direct (pressure) systemb. hydropneumatic systemc. upfeed & gravity distribution systemd. upfeed (pump) system

41. What is the principal function of the expansion tank in a hot water system?A. It allows the volume of the water in the system to change to maintain working pressure.B. It collects the air in the system, thus preventing air lock of the system while in operation.C. It provides the necessary space for the air required in the system.D. It acts as a safety chamber in case of over firing of the boiler.

42. What is the length of pipe to be removed when cutting out a section of an existing cast iron building drain to insert an MJ wye?A. Same as the wye.B. 1/4 to 1/2 in. longer than the wye.C. 1/2 to 1 in. longer than the wye.D. 1/4 to 1/2 in. shorter than the wye.

43. How is ABS pipe cut?A. At an angle to maintain proper grade.B. Flush so that pipe will fit into the socket.


C. Square to provide full joining surface.D. Flush to ensure proper pipe alignment.

44. What is required when installing long, straight horizontal or vertical runs of copper domestic hot water piping?A. Isolation valves.B. Expansion joints.C. Dielectric unions.D. Pipe insulation.

45. What determines the minimum size of the suction pipe of a well pump?A. Size of the inlet opening of the pump.B. Size of the pump cylinder.C. Distance from the pump to the water in the well.D. Size of the discharge opening in the pump.

46. Water cycle is consists of 3 stages of process, which is not included

A. Evaporation B. Condensation C. Precipitation D. Hydration

47. The other physical properties of water is ability to climb up a surface against the pull of gravity

A. SURFACE TENSION B. HEAT ABSORPTION /CAPACITY C. CAPILLARITY D. DISSOLVING ABILITY

48. A toilet seat used in a public washroom must be:

a. cover-less typeb. plastic non-permeable typec. round typed. elongated type

49. A vent pipe connecting upward from a soil or waste stack to a vent stack to prevent pressure changes in the stacks is a:

A. crown ventB. common vent


C. loop ventD. yoke vent

50. The abbreviation NPS refers to:

a. pipe sizeb. wall thicknessc. threads per inchd. thread taper

51. When installing glass piping; if one end needs to be field cut, the ends should be joined:

a. plain to plainb. bead to beadc. bead to plaind. bead to hub

52. A material not listed in the code for use in water piping is?

a. plasticb. cast ironc. aluminumd. asbestos cement

53. Which one of these fixtures has the highest fixture unit rating?

A. BathtubB. Water closetC. LavatoryD. Kitchen sink

54. The most common and widely used gatevalve?A. Single DiskB. Split WedgeC. Solid WedgeD. Double Disk

55. An air conditioner that discharges 0.05 L/s of condensate into a floor drain, would equate to howmany fixture units?a. 1b. 2


c. 8d. 45

56. Use extreme water pressure so as not to affect existing foundation in the vicinity. It makes use of a suction pump above, while casing acts as the pump riser.

A. BORED WELLS B. DRILLED WELLS C. JETTED WELL D. DUG WELLS

57. When using a Hilti powder actuated fastening tool, the device fails to fire when the trigger is pulled. The first thing you should do is?

a. keep the tool in position and wait 30 secondsb. remove the cartridgec. inspect the magazined. depress the trigger again

58. A sewer ditch is to be 148 feet long, the pipe is to be installed with a 2% grade. What would the total amount of fall be?

A. 24-5/8 in.B. 35-1/2 in.C. 46-1/4 in.D. 9-1/4 in.

(2%=×/148*12" × = 35.52")

59. The two most common sizes of pipe wrenches used by plumbers today

A. 10" and 12"B. 12" and 18"C. 12" and 24"D. 18" and 24"

60. Copper pipes are sized..A. 1/8 bigger than their inside diameterB. 1/4 bigger than their inside diameterC. 3/16 bigger than their inside diameterD. 1/16 bigger than their inside diameter

61. Expiration of plumbing permit if suspended or abandoned for period of..


a. 60 daysb. 365 daysc. 120 daysd. 180 days

62. A 4” cast iron pipe with 1” insulation is to pass through a wall. How large a diameter hole is required to be cut?a. 5”b. 5.5”c. 6”d. 6.5”

(pipe diameter+thickness+insulation)

63. What is the smallest plumbing fixture used as the basis in determining the fixture unit value?a. lavatory or wash basinb. floor drainc. water closetd. kitchen sink

64. A _______ is used to connect with galvanized pipe.

a. push fit connectorb. diaelectric unionc. couplingd. nipplee. nota

65. ______ means a drain pipe serving as a receptor for the discharge wastes from indirect or local waste piping.

a. Stack b. Spring line pipec. Spigotd. Standpipe

66. Flowing stream of water has the tendency to purify itself. Which term is not applicable in purification?

A. SedimentationB. InfiltrationC. DillutionD. Aeration


67. In a modern efficient drainage system, is a sink trap really necessary?

a. Only when pipes of three inches or less are used.b. It is essentialc. It is necessary only when there is no sink filter.d. Sink trap is not necessary

68. A_________ is a artificial rod installed in a water heater to protect tank from corrosion.

a. dip tubeb. alpha rodc. anode rodd. insulation rode. none of the above

69. What is a bridge in a plumbing system?

a. where one pipe crosses above anotherb. trap valvec. meeting point of the two subsystems d. pipe under the bridge

70. for a wall-hung urinal must be at least (from wall to urinal center)

A. 10 inchesB. 12 inchesC. 15 inchesD. 16 inches

71. What force would be exerted on the gate of a closed 6” gate valve if the water pressure acting on it measured 46 Psig.a. 867b. 1300c. 2604d. 5202

(F= Pressure x Area......F = (46lb/in^2) x (3.1416 x 3 x 3) = 1300.622 lb)

72. What is the allowable distance between the trap arm and the vent if the fixture has a trap arm diameter of 32 mm?

A. 1.52 m B. 0.76 m C. 0.51 mD. 1.07 m


73. The maximum spacing of horizontal hanger for 1/2inch cpvc piping is

a. 1 footb. 2 feetc. 3 feetd. 4 feete. none of the above.

74. What degree of pressure is required to ensure smooth drainage?

a. low pressureb. high pressurec. not a matter of pressure d. 15 & 80 psi

75. _______ means that portion of a drain system that consists of a series of pipes that transport water from one area to another without providing detention.

a. Corporation cockb. Cross connection control assemblyc. Conveyance system d. Cross connection

76. What is the color marking of cooper tube for medical purposes?A.Red and orangeB.Blue and GreenC.Yellow D.None of the above

77. Are there major differences between sewer and septic systems in your home?

a. They are very similar b.The only difference is in the type of pipes used.c.One uses pressure and the other uses gravity.d. both b & c

78. What will be the best kind of pipe for underground drains within the building?a. cement pipeb. G.I. pipec. copper piped. cast iron pipe


79. A 4” cast iron pipe with 1” insulation is to pass through a wall. How large a diameter hole is required to be cut?

a. 5”b. 5.5”c. 6”d. 6.5”

80. A common heat source for indirect water heater

a. Steamb. Gasc. Electricityd. Oil

81. Which does not apply to the plumbing system?a. Smoke tightb. air tightc. water tightd. gas tight

82. What is that valve recommended for installation that that call for throttling?a. globe valveb. gate valvec. check valved. angle valve

83. The drainage system in the building should be designed, constructed and maintained as to guard against fouling, deposits of solids and clogging. What feature should be provided to make the maintenance efficient and effective?a. adequate cleanoutsb. adequate water seal trapsc. adequate vent pipesd. adequate water supply

84. What are the most common causes of sink blockages

a. toilet paper and air freshenerb. solidified detergents and toothpastec. grease and hair d. both a & b


85. Which of the fixture need to be provided with individual vent to avoid the transmittal or surge effect to other fixture trap connected to a branch drain:a. bathtubb. laundry trayc. kitchen trayd. water closet

86. A man weighing 70 kg jumps on a raft with an area of 4 sq. meter that is floating on a fresh water lake. Find the rise of the raft.A. 2.5 cm B. 2.25 cm C. 1.75 cm D. 3.25 cm

(X = [(70kg*9.81m/s^2 ) /( 9810N/m^3 * 4m^2 )]*100)

87. Upon completion of the plumbing installation and before ____ approval is given, the plumbing inspector shall inspect the work.

a. Final b. Initialc. Earlyd. Pre

88. How many eight bends are required to make a 45 deg. turn?

a. 1 b. 2c. 3d. 4

89. What is the color of PPR?

A. GreenB. YellowC. WhiteD. It depends to the manufacturer

90. The plumber shall have present the proper _____ for making the tests, and shall furnish such assistance as may be necessary in making the inspection.

a. Apparatus b. Appliancesc. Toolsd. a and b


91. _______ means a type of stationary holding tank used to collect and hold wastewater discharges generated by an individual camping trailer or recreational vehicle.

a. Campsite receptorb. Catch basinc. Camping unit transfer containerd. None of the above

92. ______ means a type of sewage pump which macerates wastewater consisting in part of sewage.

a. Sewage pumpb. Sewage grinder pumpc. Effluent pumpd. Sump pump

93. Which of the following is considered to be the best method for connecting an indirect waste to a sanitary drainage system?

a. Air gapb. Air breakc. Air forced. Vulcanizing gap

94. ______ means a device supplied with hot or cold water, or both, and located adjacent to a water closet or clinical sink to be used for cleansing bedpans.

a. Exposed wall hung unitb. Mixing valvec. Vacuum breakerd. Bedpan washer hose

95. ______ means the portion of a pipe that is enlarged to receive the end of another pipe of the same diameter for the purpose of making a joint.

a. Bellb. Drip pan elbowc. Suction diffuserd. Connector

96. This is used for basement or underground public restroom wherein a vent stack may not be posible to extend 3 meters above the ground, as it may constitute a hazard and is unsightly.

A. Relief VentB. Looped Vent


C. Local VentD. Utility Vent

97. _____ means the accumulated floating solids generated during the biological,physical or chemical treatment, coagulation or sedimentation of wastewater.

a. Sludgeb. Slimec. Scumd. Sewage

98. The plumbing code is used to:

a. enforce the lawb. confuse the plumberc. explain way plumbing installations may varyd. None of the above

99. HWT is a common abbreviation for a:

a. Water heaterb. Hot water faucetc. Water holding tankd. None of the above

100. When flow controls are installed on gas pipng, they_________.

a. Must be accessibleb. Must not contain sediment trapsc. Must be equipped with a backflow preventerd. Are used to keep operating pressure lower than the supply pressure

101. _____ means an excavation which receives domestic wastewater by means of a drain system without pretreatment of the wastewater and retains the organic matter and solids permitting the liquids to seep from the excavation.

a. Cesspoolb. Cisternc. Refused. Holding tank

102. A ____ inspection shall be made when the plumbing system isroughed−in and before fixtures are set.


a. Rough−inb First roughc. Second roughd. Final

103. _____ means a water closet, lavatory and a bathtub or shower located together on the same floor level.

a. Full bathroomb. Bathroom groupc. Three-quarter bathd. None of the above

104. _____ means a method of venting 2 to 8 traps or trapped fixtures without providing an individual vent for each trap or fixture.

a. Circuit ventb. Auto ventc. Individual ventd. Stack vent

105. Gray water is a type of waste water that comes from:

a. Toiletsb. Sinks, showers, and bathtubsc. Toilets and garbage disposalsd. Gray water is a Water color

106. What is that term with reference to the load producing effect on the plumbing system for different kind of plumbing fixtures?a. Flush tank volumeb. Demand loadc. Fixtures valued. Fixture unit

107. ______ means a pipe or channel outside a building which conveys storm water from the roof or gutter drains to a storm drain, storm sewer or to grade.

a. Leaderb. Adequate channelc. Control measured. Major outfall


108. How can you get to know the drainage system better?

a. Ask your plumber to draw you a diagram.b. Examine the pipes under your house or in the basement.c. Check it out on Google.d. both a & c

109. repost What is the depth of the building sewer when installed?a. 1 mb. 0.3 mc. 0.65md. 1.2m

110. Water heaters, hose bibs, sill cocks are normally protected from backflow with________.

a. An air gapb. An air breakc. An vacuum breakerd. A reduced –pressure backflow preventer

111. _____ means an accessible opening in a drain system used for the removal of obstructions.

a. Cleanout plugb. Plumbing augerc. Drain piped. Cleanout

112. This is the term for a decorative metal trim shield or flange located underneath a faucet handle. It covers the hole in the wall or fixture as well as the faucet stem.

a. Dove tailb. Escutcheonc. Fluerd. Collar plate

113. Gray water that enters a collection reservoir must be_________.

a. Measuredb. Tastedc. Filteredd. Monitored


114. A pressure gauge on a non-pressurized holding tank reads 24.3 Kpa. Find out how many meters of water are in the tank.

a. Depth= 2.48 mb. Depth= 3.48 mc. Depth= 1.48 md. Depth = 1.20m

(24.3kpa/9.81=depth)

115. What device prevents gas from entering a building?

a. Back flow preventerb. P-Trapc. Anti-syphon valved.None of the above

116. Polybutylene piping should never come into contact with the following:

a. Petroleum based materialsb. Caulkc. Copperd. Salty solution or Petroleum Jelly

117. According to code, the drainage system or any part thereof shall NOT be covered until:

a. after a plumbing inspector has been called b. it has been testedc. it has been inspectedd. it has been approved

118. Size of manhole in a septic tank.A. 503B. 508C. 500D. 600

119. The required elevation of inlet pipe to the outlet pipe in a septic tank.

a. 1/2 the dia. Of the pipeb. Whole dia. Of a pipec. 51 mm (Nearest Answer rather than letter a)d. None of these


120. 1. The jelly like substance being formed in the process of coagulation?a. Scumb. Sledgec. Floed. alum

121. Best location to put soil pipes?A. DrywallB. 150 mm chb wallC. Pipe chaseD. Box up with column

122. How does the safety feature of a service hot water system work?A. AutomaticallyB. ManuallyC. ElectricallyD. Mechanically

123. In a solvent-cemented plastic piping system, most leaking joints are caused by a worker’s failure to:a. Mark all fitting and pipe for positioningb. Deburr the inside of the pipec. Apply solvent primer to the joint surfacesd. Cut the pipe in meter box

124. The top cover and the manhole of a septic tank usually extended above the surface of the ground to overcome surface water infiltrationa. 15 cmb. 10 cmc. 5 cmd. 20 cm

125. Fitting at the end of water service pipe?A.gate valveB.clean outC.plugD.cap

126. How many units do the controversial article 3.2.2.2. Of PD 1096 otherwise known as the national building code limits the practice of master plumber?A.5


B.50C.20D.10

127. Who is empowered to administer the provision of R.A. 1378?

a. President of the Philippines

b. The Board of Examiners for Master Plumber

c. Authority Having Jurisdiction

d. Administrative Authority

128. In order to accomplish the plumbing work rapidly as possible, to whom shall the plumbing engineer coordinate and cooperate?

A. ArchitectB. OwnerC. TradesmanD. Civil Engineer

129. Hardness is another problem for water distribution because of Presence of magnesium and calcium salts, which can cause Clogging of pipes Impaired laundry and cooking, which is the best solution for this?

A. Chemical treatment B. Boiling C. Sedimentation D. Aeration E. Chlorination

130. Which of the fillowing is prohibited fixture inside public toilet room?A.slop sinkB.bidetC.faucetD.drinking fountain

131. Sleeves shall be provided to protect all piping through ____ and ____ walls.

A. concrete, masonry B. ceiling, wooden C. wood, concreteD. floor, concrete


132. What is the minimum age requirement for an appointee to become a member of the Board of Master Plumbers?

A. Thirty five years oldB. Thirty two years old C. Thirty years old D. Twenty eight years old

133. What is the minimum allowed uniform gauge pressure in the piping system if an air test shall be made?A. 34.5 kPa B. 20 psiC. 17.7 psiD. 120 psi

134. 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.

A. aeration B. sedimentation C. reverse osmosis D. purification

135. Who was the President of the Republic of the Philippines who signed the "Plumbing Law of the Philippines"?

A. Joseph Estrada B. Diosdado MacapagalC. Ramon Magsaysay D. Ferdinand Marcos

136. What delivers water under pressure?

A. EjectorB. Sump pumpC. Pressure controllerD. Centrifugal pump

137. According to the fire code of the philippines what is the required slope of all horizontal runs of dry standpipes system for purpose of drawing?A. 5%B.20%


C.10%D.2%

138. Full bath = a bathroom with a toilet,a lavatory, a tub and a showerThree Quarters bath = a toilet, a lavatory and a showerHalf Bath = Toilet and lavatory only - no tub or shower

139. Globe valve for steam and hot water?

A.CompositionB.Wedge plugC.Angle valveD.Conventional

140. 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?

A. ImbalanceB. Risk dangerC. BackflowD. Contamination

141. What feature in water supply is NOT advisable to plumbing fixtures, devices and opportunities?A. Bacterial quality B. Adequate pressureC. Sufficient volumeD. Without undue noise

142. The tailpiece for a lavatory shall not be less than ____.A. 1-1/4 inch B. 1-1/2 inchC. 1 inchD. 1-3/8 inch

143. Three-inch horizontal drainage piping shall be run in practical alignment and at a uniform slope of not less than ____.

A. 1/4 inch per foot B. 1/16 inch per foot C. 1/2 inch per footD. 1/8 inch per foot


144. There are several reasons why soil stacks are not allowed in columns. Which is NOT the reason?

A. Pipes will interfere with reinforcing Bars B. The size of the columns will be larger C. Cracks and leaks cannot be detected D. The Gas emitted will deteriorate concrete

145. A method of installation not allowed in a lateral to avoid pressure and retardation of flow of waste water causing deposition of solid isa. Sharp curveb. Elbowc. Gate valved. Cross-connection

146. What is a "powder room"?

A.half bathB.full bathC.quarter bathD.none of the above

147. Copper tube permitted for underground water distribution.

a. type M softb. type L hardc. type K softd. DWV

148. What do you mean by "zero Ph" ?

A.acidB.baseC.alkalineD.neutral

149. What is the minimum height of raised letters on an iron or bronze sign that will read "Connection to Dry Standpipe"?

A. 25 mm B. 3/4 inchC. 20 mm D. 30mm


150. The discharge from a sump pump shall have the following fittings installed in order, in the direction of flow:

a. check valve, union, shut-off valveb. shut-off, coupling, check valvec. check valve, shut-off valve, uniond. union, check valve, shut-off valve

151. The minimum trap of a bidet?

A. 1 1/4"B. 1 1/2"C. 2 "D. 3"

152. What fitting is needed in a clean-out if the pipe sized is 6" diameter?

A. NippleB. ElbowC. Long sweepD. Reducer

153. 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 steelpipes, which is the best solution for this problem?A. Passing the water through a bed of crushed marble or limestone to achieve alkalinity, or adding sodium silicate.) B. Chlorination for removing salt contents C. Aeration D. Non of the above

154. Plays an important part in the plumbing system, providing this is the most critical utility requirement, and also known as a "Universal Solvent"A. Sewage B. Water C. Chloride D. Purified water

155. This is a portion of the rain water which has percolated into the earth to form underground deposits

A.AquifersB.Well


C.CisternD.Soil bearing

156. These are dug with earth augers are usually less than 30 meters (100 ft) deep. The diameter ranges from 2 to 30 inches. The well is lined with metal, vitrified tile or concrete.

A.DUG WELLSB.BORED WELLSC.DRIVEN WELLSD.SHORE WELLS

157. The other physical properties of water is ability to climb up a surface against the pull of gravity

A.SURFACE TENSIONB.HEAT ABSOPTION/CAPACITYC.CAPILLARITYD.DISSOLVING ABILITY

158. Raw water is made to pass on pipes of tiny sieves (strainers) and exposed to air of fine mist to purify it.

A.SedimentationB.Reversed osmosisC.Aeration

159. Pump having a plunger that move back and forth within a cylinder equipped with check valves.The cylinder is best located near or below the ground level.

A.CENTRIFUGAL PUMPB.RECIPROCATING PUMPC.TURBINE PUMPD.SUBMERSIBLE PUMP

160. Properties of water, that can dissolved everything , Known as the “Universal Solvent”

A.SURFACE TENSIONB.HEAT ABSOPTION/CAPACITYC.CAPILLARITYD.DISSOLVING ABILITY

161. Physical process in which the sediment particles collide with each other and stick together.

A.COAGULATIONB.FLOCCULATIONC.SEDIMENTATIOND.AERATION

162. 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?]

A.Gooseneck


B.Corporation cockC.Ball cockD.Long neck

163. It contains an impeller mounted on a rotating shaft. The rotating impeller increases the water velocity while forcing the water in to a casing thus converting the water’s velocity into higher pressure.

A.CENTRIFUGAL PUMPB.RECIPROCATING PUMPC.TURBINE PUMPD.SUBMERSIBLE PUMP

164. is a tank constructed of riveted or welded steel plate; the larger tanks often being divided into two compartments. They should be large enough to contain at least one day’s supply for the entire building in case the city main is temporarily shut off. The pipe from the pump to the tank should be across connected to the city main so that the water may be pumped directly from the main in case of fire. These tanks are used so that the pneumatic tank or other pumps suck the water from this tank and not from the public main, so that it will not deprive the neighbors of water due to pressure.

A.WATER TANKB.CISTERN TANKC.SUCTION TANKD.PNEUMATIC TANK

165. is a pump used to deliver water at a point higher than the position of the pump itself. When the plunger (a piston) descends, valve ‘A’ is closed and water in the cylinder is forced out through valve ‘B’ and up to the storage. When the plunger is raised, valve ‘B’ is closed and ‘A’ open to admit water to the cylinder. [A pump that uses pressure to move liquid]

A.Lift pumpB.Submersible pumpC.Force pump

166. A fitting installed at a branching tee from a horizontal soil branch to a horizontal waste branch.

A. 4”x2” Wye and 2 1/8” bend combinationB. 4”x4” TeeC. 4”x2” TeeD. 4”x4” Wye and 4 1/8” bend combination

167. Amount of waste discharged for a waste water treatment facility

A.300 gpmB.500 gpmC.30 cu.m./dayD.50 c.u. m. /day

168. Advantage of Using Rain water is?


A.Water is soft & pure and is suitable for the hot water supply systemB.Water is available everydayC.Water that is natural and purified by natural meansD.Non of the above

169. 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 steelpipes, which is the best solution for this problem?

A.Passing the water through a bed of crushed marble or limestone to achieve alkalinity, or adding sodium silicate.)B.Chlorination for removing salt contentsC.AerationD.Non of the above

170. A stop valve in a service pipe close to its connection with a water main.

A.Gate valveB.Corporation cockC.Check valveD.Globe valve

171. A steel drive-wellpoint is fitted on one end of the pipe section and driven into the earth.The point may be driven into the ground to a depth of up to15meters(50ft).

A.DRIVEN WELLSB.DUG WELLSC.DEEP WELLSD.SHORE WELLS

172. A pump consist of a piston traveling up and down within a cylinder which is connected with a pipe extending down into the source. The piston and the bottom of the cylinder are each provided with a valve opening upward. Upon the piston’s upstroke, valve ‘A’ closes and valve ‘B’ opens. Upon the piston’s down stroke valve ‘A’ opens and

A.Lift pumpB.Submersible pumpC.Force pump

173. A mixture of surface run-off and ground water. Surface sources includes rivers, lakes, ponds and impounding reservoirs.

A.Ground waterB.Natural surface WaterC.Rain WaterD.Natural Water

174. A kind of G.I. fitting used as a reducer from a bigger diameter to a lesser diameter.


A.BushingB.ReducerC.Fitting

175. A kind of G.I. fitting that has one end external threads, while the other end has internal threads.

A.STREET ELBOW or TEEB.WyeC.Elbow

176. Where are dampers installed to regulate the amount of cool air for an even distribution to outlets?

A. at the trunk ductsB. at a practical location at angles and elbowsC. at the branch supply duct as far as practical from the outletD. at the air boot fitting

177. What is the size of supply valve for tank type water closet?

A. 3/4”B. 1/2”C. 3/8”D. 1”

178. 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?

A. Relief ventB. Yoke ventC. Loop ventD. Circuit vent

179. 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 back-siphonage in a downfeed water distribution system?

A. pressure reducing valveB. vacuum breaker valveC. air volume control valveD. pressure relief valve

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?

A. carbon filtration


B. aerationC. ultraviolet radiationD. reverse osmosis

180. The term used to the main water pipe delivering potable water to a building is called

A. Water service pipeB. NAWASAC. Main pipeD. Water utility pipe

181. The standard size of an outlet of a dry standpipe located for each floor is ___mm. diameter.

A. 51 mm (2”)B. 76 mm (3”)C. 38 mm (1 1/2”)D. 64 mm (2 1/2”)

182. The minimum height of fire service connection from the grade line is ____ cms.

A. 50 cms.B. 100 cms.C. 46 cms.D. 35 cms.

183. The maximum horizontal developed length between the trap seal and the vertical vent inlet at the trap arm.

A. 6 feetB. 5 feetC. 4 feetD. 3 feet

184. The maximum height of a fire service connection from the grade line is ______ cms.

A. 120 cms.B. 130 cms.C. 122 cmsD. 102 cms.

185. 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:

A. gate valveB. angle valveC. ball valveD. globe valve


186. 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.

A. 132 liters per minuteB. 112 liters per minuteC. 155 liters per minuteD. 126 liters per minute

187. 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?

A. check valveB. ball valvesC. globe valveD. angle valve

188. Any pipe in the plumbing system provided to ventilate a house drainage system and to prevent trap siphonage and back pressure.

A. waste pipeB. vent pipeC. soil pipeD. house trap

189. A vent used in a battery of plumbing fixtures where the vent is installed in front of the last fixture of the battery.

A. yoke ventB. circuit ventC. stack ventD. relief vent

190. 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.

A. reciprocation pumpB. sump pumpC. jack pumpD. centrifugal pump

191. A 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.

A. tail pieceB. branchC. clean outD. stub out

192. A suitable and economical type of water pump for a 200 ft. driven wall to deliver 10gpm against 200 ft. The Develop Height (TDH) where the motor and pump is located is at the surface.A. sump pump


B. jet pumpC. submersible pumpD. turbine pump

193. A 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?

A. 110 litersB. 100 litersC. 120 litersD. 140 liters

194. 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.

A. Pressure relief valveB. Pressure reducerC. Pressure reducing valveD. Pressure regulator

195. 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

A.DUG WELLSB.DEEP WELLSC.HOLE WELLSD.FOX HOLE

196. How many gallons do an average daily consumption of a Bathtub?

A. 5 gallonsB. 30 gallonsC. 40 gallonsD. 100 gallons

197. 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.

A. Acid Resistance Cast Iron PipeB. Galvanize Steel PipesC. Galvanize Wrought Iron PipeD. Ductile Iron Pipe

198. Assuming the waste pipe of a fixture is 50 mm, what should be the size of its vent pipe?

A. 32 mmB. 25 mmC. 38 mmD. 50 mm


199. A form extracted metallurgy, its main use is to produce iron from ore.

A. TuberculationB. CarbonationC. SmeltingD. Coagulation

200. A fitting with a projecting collar along the edge used on installation requiring increased area coverage for added mechanical strength.

A. UnionB. FlangeC. UnionD. Bushing

201. A type of material made from mild steel that is drawn through a die and welded. It s dipped in bath of zinc, which treatment serves to some degree the pipe against the effect of acids.

A. Galvanized steel pipeB. Galvanized wrought iron pipeC. Cast iron pipeD. Acid resistance cast iron pipe

202. Maximum depth of trap seal shall be____unless special circumstances dictate otherwise.

A. 3"B. 4"C. 6"D. None of the above

203. 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.

A. Discharge head. B. Suction head. C. Suction lift. D. Pressure head

204. Fire Protection question:

Which of the following is correct?

A. Absolute pressure = Gauge pressure + atmospheric pressureB. Gauge Pressure = Absolute pressure + atmospheric pressureC. Atmospheric pressure = Absolute pressure + gauge pressureD. Absolute Pressure = Gauge pressure - atmospheric pressure


205. If the total working area of the plunger of a pump is 10 sq. inch. What is the total pounds of pressure on the plunger when pumping against 125 lbs. per sq. inch?

A. 11.5 lbs. B. 12.5 lbs. C. 13.5 lbs. D. 14.5 lbs.

(Pressure= Force / area ; P= 125 lbs / sq. inch divide by 10 sq inch = 12.5 pounds)

206. Vertical installation of double sanitary tees maybe used when the barrel of the fitting is atleast ______than the largest side inlet.

A. 1 pipe size largerB. 2 pipe size largerC. 3 pipe size largerD. None of the above

207. The pressure when no water is flowing?

a.) Flow Pressureb.) Static Pressurec.) Atmospheric Pressured.) Kinematic Pressure

208. A type of nipple having both ends externally threaded and the midsection unthreaded.

a.) nippleb.) open nipplec.) shoulder nippled.) tapped nipple

209. A vertical enclosure with a removable cover providing access to a curb cock.

A. Shutoff valveB. Curb boxC. Corporation stopD. Manhole

210. The flow of water or wastewater in pipes in a reverse direction from that normally intended.

a.) Back Pressureb.) Backflowc.) Back Siphonaged.) Backwater Pressure


211. Caulk joint shall be firmly packed with oakum or hemp and powered received with pure load what that depth of lead over oakum?a. 25 mm (1”)b. 32 mm (1 ¼”)c. 38 mm (1 ½”)d. 13 mm (½”)

212. A water treatment processes designed to destroy disease-causing microorganisms. Is often assessed by measuring the coliform group of indicator organisms.A. CHLORINATIONB. DISINFECTIONC. DETOXIFICATIOND. DISSOLUTION

213. What is the proper way to wind a Teflon on a pipe thread?a.) clockwise with the pipe facing youb.) counter-clockwise with the pipe facing youc.) clockwise with the pipe facing the traverse sided.) none of the above

214. A faucet with a pullout spout, sometimes called a _______ faucet?a.) easy-touchb.) magic-touchc.) one-touchd.) sensorize

215. How many single compartment fixtures of sinks, lavatory or laundry tubs that can be connected to a single trap.

a. 2 c. 3b. 4 d. 5

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