Master Plumber Review – July 2024 Email Add: cgdreview.cebu@gmail.

com
PRACTICE PROBLEMS 36 Contact number: 0945-280-7131

1 The date when Sanitation Code is issued. 8 What is the slope of a 100 mm diameter house A. 1 22 A sink designed primarily to receive wastes
A. August 22, 1991 drainpipe with 100 fixture units? B. 1.5 from bedpans and having a flush rim, an integral
B. May 25, 1973 A. 2% C. 2 trap with a visible trap seal, and the same
C. June 27, 1956 B. 3% D. 3 flushing
D. August 22, 1955 C. 4% and cleansing characteristics as a water closet.
D. 5% 16 It is not preferred to discharge into the septic A. Blow-off sink
2 Provincial Water Utilities Act. tank. B. Hotel sink
A. RA 1378 9 The following back of used, contaminated or A. Combined drain C. Clinic sink
B. PD 198 polluted water from plumbing or vessel into a B. Storm drain D. Sanitary sink
C. PD 1152 water supply pipe due to negative pressure in C. Industrial drain
D. PD 1067 such pipe. D. Sanitary drain 23 It is adopted when the street drainage is
A. Backflow connection higher in elevation than the basement floor of
3 Is a receptacle used to catch surface drained B. Back-siphonage 17 Water Code of the Philippines.
the
from cemented courts, driveways, and yards. C. Back pressure backflow A. RA 1378
B. PD 198 building.
A. Yard Catch Basin D. Back-vent pipe
C. PD 1152 A. Overhead storm drain
B. Yard Drain
D. PD 1067 B. Outside storm drain
C. Garage Catch Basin 10 The house drain should be sized correctly to C. Overhead feed drain
D. Exterior Basin have a flow of about ____ of the pipe diameter. D. Inside storm drain
A. 45% 18 It is a receptacle used to receive water to be
4 The date when the Philippine Environment Code B. 50% drained from the floor into the plumbing system.
24 Sanitary sewage is also known as,
is signed. C. 55% A. House drain
A. Soil
A. August 20, 1971 D. 60% B. Oversize house drain
B. Plumbing waste
B. May 25, 1973 C. Floor drain
C. Domestic sewage
C. June 6, 1977 11 Environment Code of the Philippines. D. Catch basin
D. Pipe sewage
D. June 22, 1975 A. RA 1378
B. PD 196 19 What is the maximum number of fixture units
25 Fixture unit value of 1 bathroom consisting
5 What is the maximum number of fixture units C. PD 1152 that may be connected to a 75 mm diameter
of 1 water closet, lavatory, bathtub and overhead
that maybe connected to a 75 mm diameter D. PD 1067 house
shower or water closet, lavatory and shower
house drain pipe under 4% slope? drain pipe under 2% slope?
compartment.
A. 18 12 What is the slope of a 100 mm diameter house A. 18
A. 3
B. 21 (Max Fajardo Table 7-1) drain pipe with 114 fixture units? B. 21
B. 5
C. 25 A. 2% C. 25
C. 6
D. 34 B. 3% D. 34
D. 8
C. 4%
6 A piping arrangement in which a drain from a D. 5% 20 A type of pipe connection in which a ballshaped
26 Civil Code of the Philippines.
fixture, appliance, or device discharge indirectly end is held in a cuplike shell and allows A. RA 1378
into a fixture, receptacle, or interceptor at a point 13 What is the slope of a 125 mm diameter house movement in any direction. B. RA 1364
below he flood level rim of the receptacle so drain pipe with 203 fixture units? A. Ball valve C. RA 386
installed as to prevent backflow or siphonage. A. 2% B. Ball cock D. PD 1067
A. Air break B. 3% C. Ball joint
B. Pressure C. 4% D. Ball cup 27 The unobstructed vertical distance through
C. Air stop D. 5% the free atmosphere between the outlet of water
D. Air gap 21 What is the maximum number of fixture
pipe and the flood level rim of the receptacle into
14 The date when the Provincial Water Utilities Act units that maybe connected to a 125 mm
which it is discharging.
7 Consists of a running trap installed under the is signed. diameter A. Air break
basement floor to protect it from freezing. A. August 22, 1991 house drain pipe under 3% slope? B. Pressure gap
A. Floor drain B. May 25, 1973 A. 162 C. Air stop
B. Oversize house drain C. June 27, 1970 B. 216 D. Air gap
C. Area drain D. August 22, 1955 C. 264
D. Floor basin D. 275
15 Fixture unit value of a Public or Hotel Sink.
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PRACTICE PROBLEMS 36 Contact number: 0945-280-7131

28 What is the slope of a 125 mm diameter house D. Sanitary sewer 42 Sanitation Code of the Philippines. D. PD 198
drain pipe with 150 fixture units? A. PD 1378
A. 2% 35 Storm drain is installed provided a slope of B. PD 856 50 Clean Air Act.
B. 3% not more than _____ per meter run. C. PD 857 A. RA 8749
C. 4% A. 0.5 % D. PD 568 B. RA 9275
D. 5% B. 1% C. PD 1067
C. 1.5% 43 A loop of pipe rising approximately 35 feet, D. PD 198
29 A device or means to prevent flow of liquid D. 2% at its top most point above the highest fixture it
from returning to source of supply and also supplies. 51 An act to regulate the practice of Sanitary
called 36 It occurs due to an increased reverse pressure A. Sanitary loop Engineering in the Philippines.
vacuum breaker. above the supply pressure. B. Plumbing loop A. RA 1378
A. Backwater valve A. Back pressure backflow C. Barometric loop B. RA 1364
B. Back-siphonage B. Back-vent pipe D. Manometric loop C. RA 386
C. Backflow preventer C. Backflow connection D. PD 1067
D. Back-vent preventer pipe D. Back pressure siphonage 44 Is a device used in kitchen serving hotels, dining
rooms, clubhouses and restaurants. 52 A part of the vent line, which connects directly
30 A device installed in a drainage system to 37 It is a device installed in a house drain A. Grease basin with an individual trap underneath or behind the
prevent reverse flow. immediately inside the foundation wall of the B. Grease interceptor fixture and extends to the branch or main vent
A. Backwater valve building. C. Oil interceptor pipe at any point higher than fixture or fixture
B. Back-siphonage A. Soil trap D. Oil catch basin traps it serves.
C. Backflow preventer B. Main trap A. Back-vent pipe
D. Back-vent pipe C. House trap 45 Fixture unit value of a Shower Bath. B. Circuit vent pipe
D. Sewer trap A. 1 C. Yoke vent pipe
31 Appropriate fittings for a storm drain. B. 1.5 D. Loop vent
A. Wye, 1/8 bend, long radius 38 It is also known as the collection line of a C. 2
B. Tee, 1/8 bend, long radius plumbing system. D. 3 53 The date when the Sanitary Engineering Law
C. Wye, 1/4 bend, long radius A. House drain and Plumbing Law are approved.
D. Wye, 1/8 bend, short radius B. Soil drain 46 A condition or any arrangement whereby A. January 18, 1955
C. Waste drain reverse flow can occur. B. June 18, 1955
32 The date when the Water Code is signed. D. Main drain A. Backflow connection C. June 27, 1956
A. December 20, 1971 B. Back-siphonage D. September 16, 1955
B. May 25, 1973 39 A room equipped with a shower stall or bathtub. C. Back pressure backflow
C. May 25, 1975 A. Bathroom group D. Backflow pipe 54 It collects water coming from the downspout
D. December 31, 1976 B. Bathroom leading the accumulated water away from the
C. Shower room 47 Revised Fire Code of the Philippines 2008. house at a relatively low rate of flow.
33 The most preferred type of back flow valve D. Half bathroom A. RA 9514 A. Overhead storm drain
because it has the characteristics of B. RA 1364 B. Roof leader
noninterferences in the movement of air inside 40 Fixture unit value for every 15 sq. foot of roof C. RA 386 C. Catch basin
the drainage system. drain. D. PD 1182 D. Splash pan
A. Interference valve A. 1
B. Unbalanced valve B. 1.5 48 It is sometimes located under the basement 55 Not preferred type of backflow valve because
C. Non-interference valve C. 2 floor or when the walls of the buildings. of its poor performance.
D. Balance valve D. 3 A. Overhead storm drain A. Interference valve
B. Outside storm drain B. Non-interference valve
34 Reduces the action scouring in the pipe, thus 41 An act to regulate the trade of Master Plumber in C. Splash pan C. Unbalanced valve
the solid waste are carried along the bottom of the Philippines. D. Inside storm drain D. Balance valves
the A. RA 1378
B. RA 1364 49 Clean Water Act. 56 Civil Code of the Philippines.
pipe.
C. RA 1478 A. RA 8749 A. RA 386
A. Undersize house sewer
D. PD 1067 B. RA 9275 B. PD 1152
B. Oversize house drain
C. PD 1067 C. RA 9514
C. Domestic sewage drain
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PRACTICE PROBLEMS 36 Contact number: 0945-280-7131

D. PD 856 C. Rugby 71 A vertical enclosure with a removable cover B. Carbonation

D. Non-sag A providing access to a curb cock. C. Smelting
57 Grease can be disposed in the kitchen sink? A. Shutoff valve D. Coagulation
A. Always 65 The safety valve on a water heater is called B. Curb box
B. Never what? C. Corporation stop 78 Assuming the waste pipe of a fixture is 50
C. Sometimes A. Drain valve D. Manhole mm, what should be the size of its vent pipe?
D. Not sure B. Angle valve A. 32 mm
C. TP valve 72 A type of nipple having both ends externally B. 25 mm
58 Your toilet should be running all the time? D. Gate valve threaded and the midsection unthreaded. C. 38 mm
A. Always A. nipple D. 50 mm
B. Never 66 A faucet with a pullout spout, sometimes called a B. open nipple
C. Sometimes _______ faucet? C. shoulder nipple 79 A cast iron pipe in which the carbon is reformed
D. Not sure A. easy-touch D. tapped nipple by magnesium inoculation, resulting in a
B. magic-touch material having high strength without otherwise
59 Teflon tape can be used when leaking occurs at C. one-touch 73 Vertical installation of double sanitary tees changing its basic properties. Good corrosion
which location. D. sensorized maybe used when the barrel of the fitting is at resistance makes this type of pipe especially
A. Tub spout least ______than the largest side inlet. useful in underground installations.
B. Shower valve 67 How many single compartment fixtures of A. 1 pipe size larger A. Acid Resistance Cast Iron Pipe
C. Drain sinks, lavatory or laundry tubs that can be B. 2 pipe size larger B. Galvanize Steel Pipes
D. Shower head connected to a single trap? C. 3 pipe size larger C. Galvanize Wrought Iron Pipe
A. 2 D. None of the above D. Ductile Iron Pipe
60 Where is the cold water valve located? B. 3
A. Left side C. 4 74 The vertical distance from the centerline of 80 How many gallons do an average daily
B. Right side D. 5 the pump (this would be the shaft on a horizontal consumption of a Bathtub?
C. Center pump) to the level in the discharge vessel. A. 5 gallons
D. Bottom 68 What is the proper way to wind a Teflon on a A. Discharge head B. 30 gallons
pipe thread? B. Suction head C. 40 gallons
61 What do all toilets have built into them? A. clockwise with the pipe facing you C. Suction lift D. 100 gallons
A. Anti-siphon valve B. counter-clockwise with the pipe facing you D. Pressure head
B. P-trap C. clockwise with the pipe facing the traverse 81 Can be constructed with hand tools or power
C. TP valve side 75 A type of material made from mild steel that tools-depth of about 15 meters (50 ft)-can have
D. Water D. none of the above is drawn through a die and welded. It s dipped in the greatest diameter that a space may allow.
bath of zinc, which treatment serves to some A. Dug well
62 What can never be re-used when replacing 69 A water treatment processes designed to destroy degree the pipe against the effect of acids. B. Drive well
toilet? disease-causing microorganisms. Is often C. Bored well
A. Galvanized steel pipe
A. Tissue assessed by measuring the coliform group of D. Deep well
B. Galvanized wrought iron pipe
B. Flange bolts
indicator organisms. C. Cast iron pipe
C. Wax ring
A. Chlorination D. Acid resistance cast iron pipe 82 A device used to control an incoming high water
D. Water
B. Disinfection pressure into the water distribution system by
C. Detoxification 76 A fitting with a projecting collar along the mechanical means so as to bring it to a working
63 What fits between a closet flange and toilet D. Dissolution edge used on installation requiring increased pressure of 80 psi.
bowl?
A. O-ring area A. Pressure relief valve
70 Caulk joint shall be firmly packed with coverage for added mechanical strength. B. Pressure reducer
B. Wax ring
oakum or hemp and powered received with pure A. Union C. Pressure reducing valve
C. Bolt ring
D. Flange ring load what that depth of lead over oakum? B. Flange D. Pressure regulator
A. 25 mm (1”) C. Union
B. 32 mm (1 ¼”) D. Bushing 83 A residence with 12 family members requires 3.6
64 What type of adhesive is used to caulk around C. 38 mm (1 ½”)
wet surfaces? cu. meters of cold water daily with peak demand.
D. 13 mm (½”) 77 A form extracted metallurgy, its main use is to What is the maximum hot water probable hourly
A. Elmers glue
B. Silicone produce iron from ore. demand?
A. Tuberculation
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PRACTICE PROBLEMS 36 Contact number: 0945-280-7131

A. 110 liters popularity in plumbing installation today. This is totally dissolves solids while some useful can cause Corrosion of non-ferrous pipes and
B. 100 liters because these valves are beautiful and are minerals are retained? Rusting & clogging of steel pipes, which is the
C. 120 liters maintenance-free. These valves work by the A. carbon filtration best solution for this problem?
D. 140 liters principle of a: B. Aeration A. Passing the water through a bed of crushed
A. gate valve C. ultraviolet radiation marble or limestone to achieve alkalinity, or
84 A term used for a pipe extension of not more B. angle valve D. reverse osmosis adding sodium silicate
than 2 feet in length, installed at any stack or C. ball valve B. Chlorination for removing salt contents
branch of plumbing rough-in for the purpose D. globe valve 95 What is a device installed on top of a pressure C. Aeration
future tap. tank used to protect against hydrostatic collapse D. None of the above
A. tail piece 90 The maximum height of a fire service connection due to suction or negative pressure resulting
B. Branch from the grade line is ______ cms. from backsiphonage in a downfeed water
C. clean out A. 120 cms. distribution system?
D. stub out B. 130 cms. A. pressure reducing valve
C. 122 cms B. vacuum breaker valve
85 A type of water pump with its pump motor D. 102 cms. C. air volume control valve
installed on the surface attached to a lift and D. pressure relief valve
push 91 The maximum horizontal developed length
rod to activate a submerged piston. between the trap seal and the vertical vent inlet 96 What is a type of vent applied on installations
A. reciprocating pump at with multi-branch interval where the vertical
B. sump pump the trap arm. vent pipe takes off in front of the first fixture and
C. jack pump A. 6 feet connects to a main vent stack?
D. centrifugal pump B. 5 feet A. Relief vent
C. 4 feet B. Yoke vent
86 A vent used in a battery of plumbing fixtures D. 3 feet C. Loop vent
where the vent is installed in front of the last D. Circuit vent
fixture of the battery. 92 The minimum height of fire service connection
A. yoke vent from the grade line is ____ cms. 97 What is the size of supply inlet for flush tank
B. circuit vent A. 50 cms. type water closet?
C. stack vent B. 100 cms. A. 3/4”
D. relief vent C. 46 cms. B. 1/2”
D. 35 cms. C. 3/8”
87 In a water distribution system, locations such D. 1”
as supply pipe to every water heater requires a 93 The standard size of an outlet of a dry
full open valve. Which of the following in the list standpipe located for each floor is ___mm. 98 Where are dampers installed to regulate the
is a full open valve? diameter. amount of cool air for an even distribution to
A. check valve A. 51 mm (2”) outlets?
B. ball valves B. 76 mm (3”) A. at the trunk ducts
C. globe valve C. 38 mm (1 1/2”) B. at a practical location at angles and elbows
D. angle valve D. 64 mm (2 1/2”) C. at the branch supply duct as far as practical
from the outlet
88 Minimum water delivery in liters per minute 94 Water as delivered by NAWASA is no longer safe D. at the air boot fitting
for an outlet of a wet standpipe at a residual for drinking because of several contaminants
pressure or 1.8 kilos per sq. mts. from the water source present in the 99 A kind of G.I. fitting used as a reducer from a
A. 132 liters per minute environment. It is now therefore imperative that bigger diameter to a lesser diameter.
B. 112 liters per minute water to be safe for drinking has to undergo A. Bushing
C. 155 liters per minute water purification in several stages. Because of B. Reducer
D. 126 liters per minute several contaminants, water undergoes several C. Fitting
D. Union
stages. What is a stage in water purification,
89 Single lever valves used in kitchen sink and
which removes mineral deposits, salts, heavy
lavatory faucets or at shower valves has gain 100 Acidity is one of the most problems in
metal,
water distribution and water purification, which
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PRACTICE PROBLEMS 36 Contact number: 0945-280-7131

into a fixture, receptacle, or interceptor at a point 113 What is the slope of a 125 mm diameter house 120 A type of pipe connection in which a ballshaped
below he flood level rim of the receptacle so drain pipe with 203 fixture units? end is held in a cuplike shell and allows
installed as to prevent backflow or siphonage. A. 2% movement in any direction.
A. Air break B. 3% A. Ball valve
B. Pressure C. 4% B. Ball cock
C. Air stop D. 5% C. Ball joint
D. Air gap D. Ball cup
114 The date when the Provincial Water Utilities Act
107 Consists of a running trap installed under the is signed. 121 What is the maximum number of fixture
basement floor to protect it from freezing. A. August 22, 1991 units that maybe connected to a 125 mm
A. Floor drain B. May 25, 1973 diameter
B. Oversize house drain C. June 27, 1970 house drain pipe under 3% slope?
C. Area drain D. August 22, 1955 A. 162
D. Floor basin B. 216
115 Fixture unit value of a Public or Hotel Sink. C. 264
101 The date when Sanitation Code is issued. 108 What is the slope of a 100 mm diameter house A. 1 D. 275
A. August 22, 1991 drainpipe with 100 fixture units? B. 1.5
B. May 25, 1973 A. 2% C. 2 122 A sink designed primarily to receive wastes
C. June 27, 1956 B. 3% D. 3 from bedpans and having a flush rim, an integral
D. August 22, 1955 C. 4% trap with a visible trap seal, and the same
D. 5% 116 It is not preferred to discharge into the septic
flushing
102 Provincial Water Utilities Act. tank.
A. RA 1378 and cleansing characteristics as a water closet.
109 The following back of used, contaminated or A. Combined drain
B. PD 198 A. Blow-off sink
polluted water from plumbing or vessel into a B. Storm drain
C. PD 1152 B. Hotel sink
water supply pipe due to negative pressure in C. Industrial drain
D. PD 1067 C. Clinic sink
such pipe. D. Sanitary drain
D. Sanitary sink
A. Backflow connection
103 Is a receptacle used to catch surface drained B. Back-siphonage 117 Water Code of the Philippines.
123 It is adopted when the street drainage is
from cemented courts, driveways, and yards. C. Back pressure backflow A. RA 1378
A. Yard Catch Basin B. PD 198 higher in elevation than the basement floor of
D. Back-vent pipe the
B. Yard Drain C. PD 1152
C. Garage Catch Basin D. PD 1067 building.
110 The house drain should be sized correctly to A. Overhead storm drain
D. Exterior Basin
have a flow of about ____ of the pipe diameter. B. Outside storm drain
A. 45% 118 It is a receptacle used to receive water to be
104 The date when the Philippine Environment Code C. Overhead feed drain
B. 50% drained from the floor into the plumbing system.
D. Inside storm drain
is signed. C. 55% A. House drain
A. August 20, 1971 D. 60% B. Oversize house drain
B. May 25, 1973 C. Floor drain 124 Sanitary sewage is also known as,
C. June 6, 1977 D. Catch basin A. Soil
111 Environment Code of the Philippines. B. Plumbing waste
D. June 22, 1975 A. RA 1378 C. Domestic sewage
B. PD 196 119 What is the maximum number of fixture units
D. Pipe sewage
105 What is the maximum number of fixture units C. PD 1152 that may be connected to a 75 mm diameter
that maybe connected to a 75 mm diameter D. PD 1067 house
125 Fixture unit value of 1 bathroom consisting
house drain pipe under 4% slope? drain pipe under 2% slope?
A. 18 of 1 water closet, lavatory, bathtub and overhead
112 What is the slope of a 100 mm diameter house A. 18
B. 21 (Max Fajardo Table 7-1) B. 21 shower or water closet, lavatory and shower
drain pipe with 114 fixture units?
C. 25 C. 25 compartment.
A. 2%
D. 34 D. 34 A. 3
B. 3%
B. 5
C. 4%
106 A piping arrangement in which a drain from a C. 6
D. 5%
D. 8
fixture, appliance, or device discharge indirectly
 Master Plumber Review – July 2024 Email Add: cgdreview.cebu@gmail.com
PRACTICE PROBLEMS 36 Contact number: 0945-280-7131

133 The most preferred type of back flow valve D. Half bathroom A. RA 9514
126 Civil Code of the Philippines. because it has the characteristics of B. RA 1364
A. RA 1378 noninterferences in the movement of air inside 140 Fixture unit value for every 15 sq. foot of roof C. RA 386
B. RA 1364 the drainage system. drain. D. PD 1182
C. RA 386 A. Interference valve A. 1
D. PD 1067 B. Unbalanced valve B. 1.5 148 It is sometimes located under the basement
C. Non-interference valve C. 2 floor or when the walls of the buildings.
127 The unobstructed vertical distance through D. Balance valve D. 3 A. Overhead storm drain
the free atmosphere between the outlet of water B. Outside storm drain
pipe and the flood level rim of the receptacle into 134 Reduces the action scouring in the pipe, thus 141 An act to regulate the trade of Master Plumber in C. Splash pan
which it is discharging. the solid waste are carried along the bottom of the Philippines. D. Inside storm drain
A. Air break the A. RA 1378
B. Pressure gap B. RA 1364 149 Clean Water Act.
pipe.
C. Air stop C. RA 1478 A. RA 8749
A. Undersize house sewer
D. Air gap D. PD 1067 B. RA 9275
B. Oversize house drain
C. PD 1067
C. Domestic sewage drain
128 What is the slope of a 125 mm diameter house 142 Sanitation Code of the Philippines. D. PD 198
D. Sanitary sewer
drain pipe with 150 fixture units? A. PD 1378
A. 2% B. PD 856 150 Clean Air Act.
135 Storm drain is installed provided a slope of
B. 3% C. PD 857 A. RA 8749
not more than _____ per meter run. B. RA 9275
C. 4% D. PD 568
A. 0.5 % C. PD 1067
D. 5% B. 1%
143 A loop of pipe rising approximately 35 feet, D. PD 198
C. 1.5%
129 A device or means to prevent flow of liquid D. 2% at its top most point above the highest fixture it
from returning to source of supply and also supplies. 151 An act to regulate the practice of Sanitary
called A. Sanitary loop Engineering in the Philippines.
136 It occurs due to an increased reverse pressure
B. Plumbing loop A. RA 1378
vacuum breaker. above the supply pressure. B. RA 1364
A. Backwater valve A. Back pressure backflow C. Barometric loop
D. Manometric loop C. RA 386
B. Back-siphonage B. Back-vent pipe D. PD 1067
C. Backflow preventer C. Backflow connection
D. Back-vent preventer pipe D. Back pressure siphonage 144 Is a device used in kitchen serving hotels, dining
rooms, clubhouses and restaurants. 152 A part of the vent line, which connects directly
130 A device installed in a drainage system to A. Grease basin with an individual trap underneath or behind the
137 It is a device installed in a house drain
prevent reverse flow. B. Grease interceptor fixture and extends to the branch or main vent
immediately inside the foundation wall of the
A. Backwater valve C. Oil interceptor pipe at any point higher than fixture or fixture
building.
B. Back-siphonage D. Oil catch basin traps it serves.
A. Soil trap
C. Backflow preventer B. Main trap A. Back-vent pipe
D. Back-vent pipe C. House trap 145 Fixture unit value of a Shower Bath. B. Circuit vent pipe
D. Sewer trap A. 1 C. Yoke vent pipe
131 Appropriate fittings for a storm drain. B. 1.5 D. Loop vent
A. Wye, 1/8 bend, long radius C. 2
138 It is also known as the collection line of a
B. Tee, 1/8 bend, long radius D. 3 153 The date when the Sanitary Engineering Law
plumbing system.
C. Wye, 1/4 bend, long radius A. House drain and Plumbing Law are approved.
D. Wye, 1/8 bend, short radius B. Soil drain 146 A condition or any arrangement whereby A. January 18, 1955
C. Waste drain reverse flow can occur. B. June 18, 1955
132 The date when the Water Code is signed. D. Main drain A. Backflow connection C. June 27, 1956
A. December 20, 1971 B. Back-siphonage D. September 16, 1955
B. May 25, 1973 C. Back pressure backflow
139 A room equipped with a shower stall or bathtub.
C. May 25, 1975 D. Backflow pipe 154 It collects water coming from the downspout
A. Bathroom group
D. December 31, 1976 B. Bathroom leading the accumulated water away from the
C. Shower room 147 Revised Fire Code of the Philippines 2008. house at a relatively low rate of flow.
 Master Plumber Review – July 2024 Email Add: cgdreview.cebu@gmail.com
PRACTICE PROBLEMS 36 Contact number: 0945-280-7131

A. Overhead storm drain A. Tissue assessed by measuring the coliform group of C. Cast iron pipe
B. Roof leader B. Flange bolts indicator organisms. D. Acid resistance cast iron pipe
C. Catch basin C. Wax ring A. Chlorination
D. Splash pan D. Water B. Disinfection 176 A fitting with a projecting collar along the
C. Detoxification edge used on installation requiring increased
155 Not preferred type of backflow valve because 163 What fits between a closet flange and toilet D. Dissolution area
of its poor performance. bowl? coverage for added mechanical strength.
A. Interference valve A. O-ring 170 Caulk joint shall be firmly packed with A. Union
B. Non-interference valve B. Wax ring oakum or hemp and powered received with pure B. Flange
C. Unbalanced valve C. Bolt ring load what that depth of lead over oakum? C. Union
D. Balance valves D. Flange ring A. 25 mm (1”) D. Bushing
B. 32 mm (1 ¼”)
156 Civil Code of the Philippines. 164 What type of adhesive is used to caulk around C. 38 mm (1 ½”) 177 A form extracted metallurgy, its main use is to
A. RA 386 wet surfaces? D. 13 mm (½”) produce iron from ore.
B. PD 1152 A. Elmers glue A. Tuberculation
C. RA 9514 B. Silicone 171 A vertical enclosure with a removable cover B. Carbonation
D. PD 856 C. Rugby providing access to a curb cock. C. Smelting
D. Non-sag A A. Shutoff valve D. Coagulation
157 Grease can be disposed in the kitchen sink? B. Curb box
A. Always 165 The safety valve on a water heater is called C. Corporation stop 178 Assuming the waste pipe of a fixture is 50
B. Never what? D. Manhole mm, what should be the size of its vent pipe?
C. Sometimes A. Drain valve A. 32 mm
D. Not sure B. Angle valve 172 A type of nipple having both ends externally B. 25 mm
C. TP valve threaded and the midsection unthreaded. C. 38 mm
158 Your toilet should be running all the time? D. Gate valve A. nipple D. 50 mm
A. Always B. open nipple
B. Never 166 A faucet with a pullout spout, sometimes called a C. shoulder nipple 179 A cast iron pipe in which the carbon is reformed
C. Sometimes _______ faucet? D. tapped nipple
D. Not sure by magnesium inoculation, resulting in a
A. easy-touch material having high strength without otherwise
B. magic-touch 173 Vertical installation of double sanitary tees changing its basic properties. Good corrosion
159 Teflon tape can be used when leaking occurs at C. one-touch maybe used when the barrel of the fitting is at resistance makes this type of pipe especially
which location. D. sensorized least ______than the largest side inlet. useful in underground installations.
A. Tub spout
A. 1 pipe size larger A. Acid Resistance Cast Iron Pipe
B. Shower valve 167 How many single compartment fixtures of B. 2 pipe size larger B. Galvanize Steel Pipes
C. Drain sinks, lavatory or laundry tubs that can be C. 3 pipe size larger C. Galvanize Wrought Iron Pipe
D. Shower head connected to a single trap? D. None of the above D. Ductile Iron Pipe
A. 2
160 Where is the cold water valve located? B. 3 174 The vertical distance from the centerline of 180 How many gallons do an average daily
A. Left side C. 4
B. Right side the pump (this would be the shaft on a horizontal consumption of a Bathtub?
D. 5 pump) to the level in the discharge vessel.
C. Center A. 5 gallons
D. Bottom A. Discharge head B. 30 gallons
168 What is the proper way to wind a Teflon on a B. Suction head C. 40 gallons
pipe thread? C. Suction lift D. 100 gallons
161 What do all toilets have built into them? A. clockwise with the pipe facing you D. Pressure head
A. Anti-siphon valve B. counter-clockwise with the pipe facing you
B. P-trap 181 Can be constructed with hand tools or power
C. clockwise with the pipe facing the traverse 175 A type of material made from mild steel that
C. TP valve side tools-depth of about 15 meters (50 ft)-can have
D. Water is drawn through a die and welded. It s dipped in the greatest diameter that a space may allow.
D. none of the above
bath of zinc, which treatment serves to some A. Dug well
162 What can never be re-used when replacing degree the pipe against the effect of acids. B. Drive well
169 A water treatment processes designed to destroy
toilet? A. Galvanized steel pipe C. Bored well
disease-causing microorganisms. Is often B. Galvanized wrought iron pipe D. Deep well
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B. ball valves C. 38 mm (1 1/2”) B. at a practical location at angles and elbows

182 A device used to control an incoming high water C. globe valve D. 64 mm (2 1/2”) C. at the branch supply duct as far as practical
pressure into the water distribution system by D. angle valve from the outlet
mechanical means so as to bring it to a working 194 Water as delivered by NAWASA is no longer safe D. at the air boot fitting
pressure of 80 psi. 188 Minimum water delivery in liters per minute for drinking because of several contaminants
A. Pressure relief valve for an outlet of a wet standpipe at a residual from the water source present in the 199 A kind of G.I. fitting used as a reducer from a
B. Pressure reducer pressure or 1.8 kilos per sq. mts. environment. It is now therefore imperative that bigger diameter to a lesser diameter.
C. Pressure reducing valve A. 132 liters per minute water to be safe for drinking has to undergo A. Bushing
D. Pressure regulator B. 112 liters per minute water purification in several stages. Because of B. Reducer
C. 155 liters per minute C. Fitting
several contaminants, water undergoes several D. Union
183 A residence with 12 family members requires 3.6 D. 126 liters per minute
stages. What is a stage in water purification,
cu. meters of cold water daily with peak demand. which removes mineral deposits, salts, heavy
What is the maximum hot water probable hourly 189 Single lever valves used in kitchen sink and 200 Acidity is one of the most problems in
metal, water distribution and water purification, which
demand? lavatory faucets or at shower valves has gain
totally dissolves solids while some useful can cause Corrosion of non-ferrous pipes and
A. 110 liters popularity in plumbing installation today. This is
minerals are retained? Rusting & clogging of steel pipes, which is the
B. 100 liters because these valves are beautiful and are
A. carbon filtration
C. 120 liters maintenance-free. These valves work by the best solution for this problem?
B. Aeration
D. 140 liters principle of a: A. Passing the water through a bed of crushed
C. ultraviolet radiation
A. gate valve marble or limestone to achieve alkalinity, or
D. reverse osmosis
184 A term used for a pipe extension of not more B. angle valve adding sodium silicate
than 2 feet in length, installed at any stack or C. ball valve B. Chlorination for removing salt contents
195 What is a device installed on top of a pressure C. Aeration
branch of plumbing rough-in for the purpose D. globe valve
tank used to protect against hydrostatic collapse D. None of the above
future tap. due to suction or negative pressure resulting
A. tail piece 190 The maximum height of a fire service connection
from backsiphonage in a downfeed water
B. Branch from the grade line is ______ cms.
A. 120 cms. distribution system?
C. clean out
B. 130 cms. A. pressure reducing valve
D. stub out
C. 122 cms B. vacuum breaker valve
D. 102 cms. C. air volume control valve
185 A type of water pump with its pump motor D. pressure relief valve
installed on the surface attached to a lift and
push 191 The maximum horizontal developed length
196 What is a type of vent applied on installations
rod to activate a submerged piston. between the trap seal and the vertical vent inlet
with multi-branch interval where the vertical
A. reciprocating pump at
vent pipe takes off in front of the first fixture and
B. sump pump the trap arm.
A. 6 feet connects to a main vent stack?
C. jack pump
B. 5 feet A. Relief vent
D. centrifugal pump
C. 4 feet B. Yoke vent
D. 3 feet C. Loop vent
186 A vent used in a battery of plumbing fixtures D. Circuit vent
where the vent is installed in front of the last
fixture of the battery. 192 The minimum height of fire service connection
197 What is the size of supply inlet for flush tank
A. yoke vent from the grade line is ____ cms.
A. 50 cms. type water closet?
B. circuit vent A. 3/4”
C. stack vent B. 100 cms.
C. 46 cms. B. 1/2”
D. relief vent C. 3/8”
D. 35 cms.
D. 1”
187 In a water distribution system, locations such
as supply pipe to every water heater requires a 193 The standard size of an outlet of a dry
198 Where are dampers installed to regulate the
full open valve. Which of the following in the list standpipe located for each floor is ___mm.
amount of cool air for an even distribution to
is a full open valve? diameter.
A. 51 mm (2”) outlets?
A. check valve A. at the trunk ducts
B. 76 mm (3”)