Master Plumber Practice Exam (sanitation, Design & Installation)
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Master Plumbers are bound by a code of ethics, insured for six years, licensed and registered, highly trained, quality tradesman and backed by the industry. The highest level is the master plumber, which requires experience as a journeyman plumber. The quiz below covers sanitation, Design & Installation for that plumber exam. Give it a try.
- 1.A seepage is defined as a sewage terminal
- A.
Receiving both liquid and solid waste
- B.
Receiving only liquid waste
- C.
Receiving only solid waste
- D.
Receiving direct human excrement
- 2.
- A.
15.2 meters
- B.
1.5 meters
- C.
3 meters
- D.
1 meter
- 3.Pour index horsepower is how many foot lbs per minutes
- A.
30,000
- B.
33,000
- C.
33,333
- D.
32,564
- 4.Bacteria which has no function in sewage treatment
- A.
Non-aerobic bacteria
- B.
Pathogenic bacteria
- C.
Facultative bacteria
- D.
Aerobic bacteria
- 5.What is the minimum pressure outlet to operate a flush valve in water closet and urinal?
- A.
10 psi
- B.
25 psi
- C.
15 psi
- D.
20 psi
- 6.The appropriate type of material for vent pipes in an acid waste system is,
- A.
Malleable iron
- B.
Galvanize iron
- C.
DWV copper
- D.
Plastic
- 7.Where is surface water for domestic use collected?
- A.
Seas
- B.
Streams
- C.
Mountains
- D.
Oceans
- 8.What is the least method to lay a PB or PE tube on trenches?
- A.
Stretched
- B.
Straight line
- C.
On steel sleeves
- D.
Snake line
- 9.What really seals a caulked joint?
- A.
Epoxy
- B.
Pig lead
- C.
Cement
- D.
Oakum
- 10.
- A.
Plastic Expander
- B.
Poly Enzyme
- C.
Plastic Extrusion
- D.
Poly Ethelene
- 11.What fitting is needed in a cleanout if the pipe is 6" diameter?
- A.
Nipple
- B.
Reducer
- C.
Elbow
- D.
Long sweep
- 12.What produces when magnesium salt is present in water?
- A.
Mineral hardness
- B.
Permanent hardness
- C.
Total hardness
- D.
Temporary hardness
- 13.What is the name of the process in which steel and wrought iron pipe rust?
- A.
Sand blast
- B.
Electrolysis
- C.
Tuberculation
- D.
Percolation
- 14.Which of these stages is not one among cycle of water?
- A.
Saturation
- B.
Precipitation
- C.
Evaporation
- D.
Condensation
- 15.What is the minimum retention period of waste water in a septic tank which will settle and stabilize solids suspended in water?
- A.
12 hrs
- B.
48 hrs
- C.
24 hrs
- D.
30 hrs
- 16.What water is a portion of rainwater which percolate into the earth to form underground deposit?
- A.
Dew
- B.
Surface
- C.
Spring surface
- D.
Ground water
- 17.What should be done before working with lead that is wet?
- A.
Pre-heat
- B.
Use blower
- C.
Wipe it
- D.
Use drier
- 18.Water is many times heavier than air by?
- A.
803
- B.
830
- C.
308
- D.
300
- 19.
- A.
After threading
- B.
Before cutting
- C.
Before threading
- D.
After cutting
- 20.Iron in the form of ferrous bicarbonate can be removed from water by means of
- A.
Aeration
- B.
Limestone filtration
- C.
Activated charcoal filtration
- D.
Sedimentation
- 21.
- A.
Animal oil
- B.
Vegetable oil
- C.
Water soluble oil
- D.
Engine oil
- 22.What should be used in supporting suspended horizontal single run plumbing pipe?
- A.
Clevis hanger
- B.
Clamp hanger
- C.
Bracket hanger
- D.
Trapege hanger
- 23.What is the partner of the gate valve in the g.i. pipe system of installation?
- A.
Union patente
- B.
Check valve
- C.
Coupling
- D.
Hub and spigot
- 24.What is the test used in determining if a newly installed water system is leak free?
- A.
Pressure test
- B.
Hydraulic test
- C.
Hydrostatic test
- D.
Leak test
- 25.One of the first steps in the selection of suitable water supply source is
- A.
Water demand
- B.
Budgetary cost
- C.
Water potability
- D.
Topography
- 26.Which of these pipes is measured on the outside diameter
- A.
Galvanized iron pipe
- B.
Asbestos
- C.
Concrete pipe
- D.
Copper pipe
- 27.How can acidity of water be neutralized?
- A.
Crushed stone filtration
- B.
White sand filtration
- C.
Marble stone filtration
- D.
Green and filtration
- 28.What is the device or fitting used to provide a liquid seal to keep sewer gases out of the house without affecting the flow of waste water sewage?
- A.
Running trap
- B.
Plumbing trap
- C.
Trap seal
- D.
Backwater valve
- 29.Which of these joints is adaptable to assemble cast iron pipe hub and spigot type?
- A.
Compression joints
- B.
Screwed joints
- C.
Brazed joints
- D.
Mortar joints
- 30.What pressure is loss caused by water flowing thru the pipe in a system?
- A.
Dynamic
- B.
Friction loss
- C.
Static water pressure
- D.
Water pressure
- 31.What system uses an assembly of mechanical device which raise water using compressed air as delivery method.
- A.
(pneumatic) air pressure system
- B.
Downfeed system
- C.
Overhead feed system
- D.
Deepwell system
- 32.Which of these maintenance procedures maybe performed on a pump while it is running?
- A.
Lubricating the impeller fins
- B.
Tightening the packing nut
- C.
Replacing the seal parts
- D.
Replacing the packing
- 33.What is the distance between the faucet outlet and the flood rim of the basin into which it discharges?
- A.
Air chamber
- B.
Air gap
- C.
Air valve
- D.
Air bubble
- 34.Where is rainwater for domestic use collected?
- A.
Lakes
- B.
Grounds
- C.
Plants
- D.
Roofs
- 35.A urinal stall type should have a minimum water supply size
- A.
3/4"
- B.
5/8"
- C.
1 1/4"
- D.
3/8"
- 36.How many lavatories shall be installed in an office with 160 female employee.
- A.
3
- B.
4
- C.
2
- D.
5
- 37.What is the recommended size of service pipe approved by MWSS for a 2 storey residential house?
- A.
1 1/4" diam. - 31mm diam.
- B.
1" diam. - 25mm diam.
- C.
1/2" diam. - 12mm diam.
- D.
3/4" diam. - 19mm diam.
- 38.What is the minimum size of water supply for water closet flush valve type?
- A.
1/2"
- B.
1"
- C.
1 1/4"
- D.
3/4"
- 39.How can sulphur in the form of hydrogen sulphates be removed from water?
- A.
Aeration
- B.
Evaporation
- C.
Filtration
- D.
Sedimentation
- 40.What is joining compound is used to assemble poly vinyl chloride pipe and fitting together
- A.
Epoxy
- B.
Solvent cement
- C.
Rugby
- D.
Glue
- 41.What is the common pipe material use for in house water system?
- A.
BI pipe
- B.
CI pipe
- C.
GI pipe
- D.
AC Pipe
- 42.What is the common pipe material use for in house water system?
- A.
BI pipe
- B.
CI pipe
- C.
GI pipe
- D.
AC Pipe
- 43.What is required when cast iron pipe and fittings of different size are to be joined or connected?
- A.
Gasket
- B.
Nipple
- C.
An increaser or reducer
- D.
Union patente
- 44.What is the standard size of cleanout for a 4" diam. pipe?
- A.
3" diam.
- B.
2" diam.
- C.
4" diam.
- D.
3 1/2" diam.
- 45.What is the number of thread of 1" diam. to 2" diam. for effective joints?
- A.
8
- B.
11 1/2
- C.
14
- D.
15 1/2
- 46.
- A.
Underground water
- B.
Natural water
- C.
Surface water
- D.
Ground water
- 47.What is meant by PE plastic tube , material used for service connection?
- A.
Plastic extruscion
- B.
Polyethelene
- C.
Polyenzyme
- D.
Plastic expander
- 48.How does the safely feature of a service hot water system work?
- A.
Mechanically
- B.
Automatically
- C.
Manually
- D.
Electrically
- 49.Where does the Level III type of water service referred?
- A.
Individual shallow well handpump installation
- B.
Public faucets
- C.
Individual house pipe in connection with meter
- D.
Artesian well
- 50.What is the minimum horizontal clear distance of water well supply to building sewer, as per UPC?
- A.
5' (1.50 m)
- B.
10' (3.0 m)
- C.
3' (0.90 m)
- D.
50' (15.2 m)
- 51.An automatic safety device of a hot water supply system is always provided in order to eliminate
- A.
Human error
- B.
Bursting
- C.
Underheating
- D.
Overheating
- 52.How do you measure the rainfall intensity?
- A.
Inches / hr
- B.
Inches/ min
- C.
Inches/ sec
- D.
Inches/ day
- 53.The minimum size of water supply to bathtub
- A.
1/4" diam.
- B.
3/8" diam.
- C.
1/2" diam.
- D.
1" diam.
- 54.What is the meaning of "u" placed before PVC pipe, a material used for water system.
- A.
Under
- B.
Universal
- C.
Unplasticized
- D.
Ultra
- 55.What do you call the vertical distance of a column of water from the pump discharge?
- A.
Head loss
- B.
Friction head
- C.
Gravity head
- D.
Pressure head
- 56.A seepage is defined as a sewage terminal
- A.
Receiving both liquid and solid waste
- B.
Receiving only liquid waste
- C.
Receiving only solid waste
- D.
Receiving direct human excrement
- 57.Construction of septic tank should be located at a distance away from the pressure public main to prevent sanitation
- A.
15.2 meters
- B.
1.5 meters
- C.
3 meters
- D.
1 meter
- 58.A septic tank is a water tight receptacle for which the sewage is digested than a biological action mainly by microorganism
- A.
Facultative bacteria
- B.
Aerobic bacteria
- C.
Anaerobic bacteria
- D.
Enzymes
- 59.The soil branch must be slope at a grade so that waste content is given a flow of pipe velocity to assure a self-scouring condition
- A.
1 %
- B.
2%
- C.
3%
- D.
4%
- 60.Pour index horsepower is how many foot lbs per minutes
- A.
30,000
- B.
33,000
- C.
33,333
- D.
32,564
- 61.A positive displacement pump is
- A.
Rotary pump
- B.
Centrifugal pump
- C.
Turbine pump
- D.
Piston pump
- 62.A pump used in uderground
- A.
Surface pump
- B.
Submersible pump
- C.
Piston pump
- D.
Centrifugal pump
- 63.The property of a fluid whereby its own molecule are united or attracted to each other is:
- A.
Ideal fluid
- B.
Pilot tube
- C.
Cohesion
- D.
Adhesion
- 64.
- A.
Health
- B.
Vital Statistics
- C.
Fitness
- D.
Statics
- 65.Study of the distribution of the disease or condition in a population
- A.
Public Health
- B.
Environmental Sanitation
- C.
Epidemiology
- D.
Environmental Heath
- 66.It includes the discharge from latrine, urinals, bathrooms, kitchens and stables is called
- A.
Refuse
- B.
Wet refuse
- C.
Sewage
- D.
Waste water
- 67.Bacteria which has no function in sewage treatment
- A.
Non-aerobic bacteria
- B.
Pathogenic bacteria
- C.
Facultative bacteria
- D.
Aerobic bacteria
- 68.Disinfection of drinking water is done to remove
- A.
Bacteria
- B.
Color
- C.
Odor
- D.
Turbidity
- 69.Instrument used to measure the water flow
- A.
Venture meter
- B.
Pressure gauge
- C.
Dynamometer
- D.
Pitot tube
- 70.The volume of a liquid passing through a cross section of a stream in unit time is called
- A.
Steady flow
- B.
Uniform flow
- C.
Continuous flow
- D.
Discharge
- 71.Vertical drainage lines connecting with horizontal drainage lines shall enter through
- A.
90 degree branches
- B.
45 degree branches
- C.
Coupling
- D.
Tee
- 72.Horizontal drainage lines connecting with horizontal drainage lines shall enter through
- A.
90 degree wye branches
- B.
Combination wye and 1/8 bend
- C.
wye
- D.
None of the above
- 73.Horizontal drainage branch lines, connecting with a vertical stack shall enter through
- A.
45 or 60 degree wye branches
- B.
Combination wye and 1/8 bend branches
- C.
Sanitary tee or sanitary tapped tee
- D.
All of these
- 74.Each horizontal drainage pipe shall be provided with a cleanout at its upper terminal and each run piping which is more than
- A.
15 meters
- B.
10 meters
- C.
5 meters
- D.
3 meters
- 75.Sink used as a rule for janitorial services in a building is called
- A.
Pantry sink
- B.
Scullery sink
- C.
Wash-up sink
- D.
Slop sink
- 76.The non-soluble materials which is the end product after biological action of bacteria in waste and what settles at the bottom of the septic tank is called
- A.
Scum
- B.
Sledge
- C.
Sludge
- D.
Smudge
- 77.What is that appurtenant structure installed at the basement floor of a building which waste water are drained?
- A.
Sump pit
- B.
Septic tank
- C.
Catch basin
- D.
Floor drain
- 78.What is water that diminishes the capacity of water to form lather with soap?
- A.
Bacteria
- B.
Suspended materials
- C.
Mineral that makes water hard
- D.
Presence of sodium ions
- 79.
- A.
Flowing well
- B.
Shallow well
- C.
Deep well
- D.
Artesian well
- 80.
- A.
0.3 - 0.9 m
- B.
0.4 - 1 m
- C.
1 - 1.5 m
- D.
0.6 - 1.2 m
- 81.What is the minimum horizontal distance required between vent terminal and window opening of a building?
- A.
1.5 m
- B.
3 m
- C.
1 m
- D.
0.5 m
- 82.What should be the minimum clearance that should be made with respect to the floor line to allow convenient opening or closing of a clean out?
- A.
100 mm
- B.
200 mm
- C.
50 mm
- D.
300 mm
- 83.What do you call the undesirable type of vegetation formed when water reservoir is exposed to light?
- A.
Septic scum
- B.
Sledge
- C.
Pond scum
- D.
Floe
- 84.Which does not apply in the removal of suspended materials and color in the water supply?
- A.
Sedimentation
- B.
Coagulation
- C.
Filtration
- D.
Chlorination
- 85.The pipe or shaft which is used to remove foul or congested air from a fixture or a room and convey the same to the atmosphere is called
- A.
Local Vent
- B.
Crown vent
- C.
Back Vent
- D.
Venting pipe
- 86.What is the process of water supply purification which consists of applying certain chemicals in particles too small to be removed by plain sedimentation?
- A.
Coagulation
- B.
Sedimentation
- C.
Filtration
- D.
Screening
- 87.What is the type of water closet prescribed for public toilet?
- A.
Elongated bowl type
- B.
Oval Bowl type
- C.
Round type
- D.
Egg shaped type
- 88.What is the process of exposing water in their films to the oxygen of the atmosphere in order to remove neutralize the taste, odor and dissolved oxygen?
- A.
Filtration
- B.
Screening
- C.
Aeration
- D.
Sedimentation
- 89.What is the pipe fitting with outside thread and projecting square head used for closing the edge of another fitting?
- A.
Plug
- B.
Cap
- C.
Knot
- D.
Bushing
- 90.The jelly liked substance being formed in the process of coagulation?
- A.
Scum
- B.
Slegde
- C.
Floe
- D.
Alum
- 91.What is the prescribed distance of vent from trap seal in plumbing installation
- A.
1.5 m
- B.
0.6 m
- C.
2 m
- D.
1 m
- 92.What is that vent pipe system on plumbing which liquid waste flow through?
- A.
Wet vent
- B.
Yoke vent
- C.
Stack Vent
- D.
Back Vent
- 93.What is that receptacle attached to the plumbing system other than trap on which water or waste may be collected or retained for ultimate discharge into the drainage?
- A.
Catch basin
- B.
Manhole
- C.
Fixture
- D.
Scupper drain
- 94.How far should be the distance of a septic tank from a well to prevent contamination of water?
- A.
20 m
- B.
50 m
- C.
15 m
- D.
40 m
- 95.In plumbing, the unobstructed vertical distance through the free atmosphere, between faucet supplying water and the flood level rim of a fixture is called
- A.
Air gap
- B.
Air break
- C.
Trap seal
- D.
Free height
- 96.What is the vertical distance between the dip and crown weir of the trap?
- A.
Trap seal
- B.
Crown air
- C.
Leader
- D.
Bleeder
- 97.What is that fittings so installed in a plumbing system to prevent the passage of air, gas and some vermin through the pipe?
- A.
Trap
- B.
Check Valve
- C.
Flap Valve
- D.
Gate valve
- 98.What is the type of wrench used in working with plated finish and in place with too small to admit pipe wrench?
- A.
Strap wrench
- B.
Closed wrench
- C.
Open wrench
- D.
Pipe tong
- 99.That pipe which conveys waste water and water carried waste without fecal matter
- A.
Waste Pipe
- B.
Wet stand pipe
- C.
Vent Pipe
- D.
Wet Vent
- 100.What is that device use to prevent backflow whereby air is admitted to the supply pipe whenever a vacuum occur?
- A.
Gate valve
- B.
Air relief valve
- C.
Float valve
- D.
Vacuum breaker
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