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WorksheetsBonetti Guide #2
Total questions: 99
Worksheet time: 50mins
A plumbing permit expires if work authorized by such permit is not commenced within ________.
(A) 60 days
(B) 90 days
(C) 120 days
(D) 180 days
As long as such repairs do not require the replacement or rearrangement of valves, pipes or fittings, a plumbing permit is not required _______.
(A) when work is done by the owner
(B) for the clearing of stoppages
(C) when the contract is less than $100.00
(D) for water piping
The maximum units on a 2 inch horizontal waste line is _______.
(A) four
(B) six
(C) eight
(D) five
The common vent pipe size for five domestic kitchen sinks is ________.
(A) 1-1/2 inches
(B) 2 inches
(C) 3 inches
(D) 4 inches
A refrigerator, not regularly classed as a plumbing fixture may discharge into a/an ________.
(A) trap
(B) laundry sink
(C) bathtub
(D) approved open receptor
Per table 702.2(b), one fixture unit has a discharge capacity of ________.
(A) up to 7-1/2 gpm
(B) 8 to 15 gpm
(C) 18 to 20 gpm
(D) over 20 gpm
Gas appliances connected to a piping system shall have an accessible, approved manual shutoff valve within ______ feet of the equipment it serves.
(A) 3
(B) 4
(C) 5
(D) 6
The size of the supply piping outlet for a gas appliance shall not be less than ______ inch.
(A) 1/4
(B) 3/8
(C) 1/2
(D) 3/4
Except for direct vent appliances, a through-the-wall mechanical draft venting system shall terminate at least _____ feet above any forced air inlet located within 10 feet.
(A) 2
(B) 3
(C) 4
(D) 8
A fixture trap is vented to ______.
(A) prevent the loss of a trap seal by siphonage or back pressure
(B) add to the cost of installation
(C) reduce noises in drain systems
(D) prevent cross-connections
Except for plastic piping, water piping systems shall be permitted to be tested with a (an) ________.
(A) water pressure test of 10 psi
(B) air pressure test of 25 psi
(C) no test required
(D) air pressure test of 50 psi
A valve that has the highest friction loss to water flow is the ______.
(A) gate valve
(B) angle valve
(C) flush valve
(D) globe valve
Of those listed, gas piping shall be tested with _______.
(A) water
(B) oxygen
(C) air
(D) ether
ABS DWV pipe installed horizontally shall be supported at intervals not to exceed ______.
(A) 2 feet
(B) 3 feet
(C) 4 feet
(D) 5 feet
Three-inch horizontal drainage piping shall have a uniform slope of not less than ________.
(A) 3/8 inch per foot
(B) 1/16 inch per foot
(C) 1/2 inch per foot
(D) 1/4 inch per foot
In sizing gas piping, the length of the system is measured from the meter location to ________.
(A) where the first branch takes off
(B) the kitchen range, if located near the meter
(C) the most remote outlet on the system
(D) a wall heater, if located in a bathroom
Where supplementary gas for standby use is connected downstream from a meter, a _______ shall be installed.
(A) device to prevent backflow
(B) globe valve
(C) gate valve
(D) regulator
Indoor gas hose connectors shall be of minimum length and shall not exceed _____ feet.
(A) 2
(B) 3
(C) 5
(D) 6
Of those listed, which material may be installed underground as part of a drain, waste and vent system?
(A) galvanized wrought-iron pipe
(B) cast-iron pipe
(C) galvanized steel
(D) aluminum pipe
With some exceptions the upper terminal of each horizontal drainage pipe shall be provided with ________.
(A) valves
(B) vent pipes
(C) a cleanout
(D) traps
The maximum number of bathtubs allowed on a 2-inch vent is ____.
(A) 8
(B) 12
(C) 16
(D) 20
Six bathtubs and six showers require a common vent of not less than _____ inches.
(A) 1-1/2
(B) 2
(C) 3
(D) 4
Where necessary, to insert fittings in gas pipe that has been installed in a concealed location, of those listed the pipe shall be reconnected with _____.
(A) unions
(B) right and left couplings
(C) swing joints
(D) none of the above
A ______ is not a fitting approved for changes in direction of drainage flow.
(A) wye
(B) 60 degree wye
(C) 1/8 bend
(D) 45 degree tee
Of those listed, waste and vent pipes may be tested with ______.
(A) 5 foot head of water
(B) a smoke test
(C) 15 psi air
(D) 10 foot head of water
Fuel gas piping pressure tests shall not be less than _______.
(A) 10 pounds
(B) 15 pounds
(C) 20 pounds
(D) 1-1/2 times the proposed maximum working pressure
Type B gas vents shall terminate not less than ____ feet above the highest connected appliance draft hood or flue collar.
(A) 2
(B) 3
(C) 5
(D) 10
No ________ or urinal shall be installed on combination waste and vent systems.
(A) floor drain
(B) water closet
(C) shower drain
(D) floor sink
Gas meters shall be located in _________ locations.
(A) secure
(B) readily accessible
(C) accessible
(D) unventilated
A water closet seat shall be sized for the _______.
(A) water closet tank hardware
(B) water closet bowl type
(C) floor covering material
(D) water supply type
The minimum size gas supply for a mobile home is ______.
(A) 1-1/2 inches
(B) 1 inch
(C) 3/4 inch
(D) 1/2 inch
A pressure regulator shall be installed when the static water pressure is exceeding ________.
(A) 80 psi
(B) 125 psi
(C) 100 psi
(D) 150 psi
Of those listed, and expansion tank is required when _______.
(A) the pressure exceeds 150 psi
(B) the water heater is in the basement
(C) a backflow preventer is installed
(D) the building is four stories high
A backwater valve is used _______.
(A) to back water up the pipe
(B) to protect the system from back-siphonage
(C) to act as a bypass
(D) to prevent backflow of sewage in a drainage system
All devices or assemblies installed in a potable water supply for protection against backflow shall be maintained in good working condition by ______.
(A) the person having control of such devices
(B) the plumber
(C) the inspector
(D) the landscaper
Of those listed, the approved fitting for connecting a horizontal drain line with a horizontal drain line would be a _______.
(A) double tee
(B) double wye
(C) combination wye and 1/8 bend
(D) sanitary tee
The maximum full pipe flow in gpm for a hydromechanical grease interceptor with a 60 gpm rating requires ____ gpm size of grease interceptor for a 2 minute drainage period.
(A) 125
(B) 75
(C) 10
(D) 35
After allowing for friction and other pressure losses, the residual water pressure shall be of not less than ____ psi.
(A) 5
(B) 10
(C) 15
(D) 20
Gas meters shall not be placed where they will be subjected to damage such as: __________.
(A) adjacent to a driveway
(B) under a fire escape
(C) in a well-lighted area
(D) both A and B apply
The maximum fixture units on a 4 inch drainage stack are _______.
(A) 256
(B) 180
(C) 300
(D) 216
Corrugated vent connectors shall _______.
(A) not be smaller than the listed appliance categorized vent diameter
(B) be sized as one-half the flue collar diameter
(C) be larger than the draft hood outlet diameter
(D) sized using table 510.2.1
The minimum dimension for an outdoor combustion air opening for a water heater shall not be less than ____ inches.
(A) 2
(B) 3
(C) 6
(D) 12
The developed length of 1-1/2 inch trap arms shall not exceed _______.
(A) 4 feet
(B) 5 feet
(C) 6 feet
(D) 3 feet, 6 inches
Of those listed, valves used to control 2 or more openings for water distribution shall be _______.
(A) nonrising stem globe valve
(B) fullway gate valve
(C) heavy-duty globe valve
(D) ground key valve
A sewage ejector receiving the discharge of water closets or urinals shall have a discharge capacity of not less than ____ gallons per minute.
(A) 10
(B) 15
(C) 20
(D) 40
Using Appendix A, the pressure at the base of a column of water 10 feet high is approximately ____ psi.
(A) 0.43
(B) 4.3
(C) 10
(D) 43.0
The vent pipe serving a combination waste and vent system with a 4-inch drain pipe shall be at least ____ inches.
(A) 1-1/2
(B) 2
(C) 3
(D) 4
A 2-inch horizontal copper-tubing cold water line shall be supported at intervals of ____ feet.
(A) 12
(B) 10
(C) 8
(D) 6
The maximum length of an indirect waste pipe without a vent is less than ____ feet.
(A) 5
(B) 10
(C) 12
(D) 15
Traps are required for indirect waste pipes where the length exceeds ____ feet.
(A) 5
(B) 10
(C) 12
(D) 15
The maximum temperature of any water discharging under pressure directly into any part of a plumbing or drainage system is _____.
(A) 140 F
(B) 160 F
(C) 180 F
(D) 212 F
The maximum distance allowed for a 2-inch trap arm is _____.
(A) 2 feet
(B) 3 feet
(C) 3 feet, 6 inches
(D) 5 feet
The developed length between a trap of a water closet and its vent shall not exceed ____ feet.
(A) 4
(B) 6
(C) 8
(D) 10
Fixture traps shall have a liquid seal of not less than ____ inch(es).
(A) 1
(B) 2
(C) 3
(D) 4
Which of the following materials is prohibited by code for drainage and vent piping below ground?
(A) Type L copper tubing
(B) cast-iron pipe
(C) galvanized pipe
(D) ABS/PVC DWV
Of those listed, a watertight pan of corrosion-resistant material is required when a water heater is located in a (an) ________.
(A) bathroom
(B) garage
(C) attic
(D) basement
Where joints are permitted for copper water tubing under a building slab, they shall be brazed and fittings shall be _______.
(A) cast brass
(B) wrought copper
(C) cast bronze
(D) DWV copper
The minimum distance between the center of a water closet and a finished side wall or partition is _____ inches.
(A) 15
(B) 30
(C) 12
(D) 6
The finished dam or threshold for a shower, excluding accessibility requirements, shall not be less than ____ inch(es).
(A) 1
(B) 2
(C) 3
(D) 6
All shower compartments regardless of shape, excluding accessibility requirements and shower receptors having an overall dimension of not less than 30 inches in width and 60 inches in length, shall be capable of encompassing a minimum ____ inch circle.
(A) 30
(B) 36
(C) 40
(D) 48
The minimum size septic tank for a three-bedroom residence is ____ gallons.
(A) 750
(B) 1,000
(C) 1,200
(D) 1,500
A seepage pit shall have a minimum side wall (not including the arch) of ________.
(A) 10 feet below the inlet
(B) 20 feet below the inlet
(C) 10 feet below the dome
(D) 20 feet below ground
Flexible water connectors shall be installed in ________.
(A) accessible locations
(B) interior locations only
(C) readily accessible locations
(D) water softeners only
The maximum trap loading for a 2 inch trap is _______.
(A) one unit
(B) two units
(C) three units
(D) four units
The minimum size trap for a shower with a single head is ________.
(A) 1-1/2 inches
(B) 2 inches
(C) 3 inches
(D) 4 inches
No indirect waste pipe need be larger in diameter than the _________.
(A) trap to which it is connected
(B) largest drain in the building
(C) size required to drain the fixture in one minute
(D) drain outlet or tailpiece of the fixture
Food preparation sinks shall be indirectly connected to the drainage system by means of a (an) ________.
(A) airgap
(B) floor drain
(C) grease trap
(D) standpipe
The minimum size trap for a public (commercial) bar sink is _____.
(A) 1-1/2 inches
(B) 2 inches
(C) 3 inches
(D) 4 inches
Seepage pits shall be circular and have a excavated diameter of not less than _____.
(A) 2 feet
(B) 3 feet
(C) 4 feet
(D) 5 feet
No plumbing system or portion thereof shall be covered, concealed or put into use until it is inspected and approved by the _______.
(A) Authority Having Jurisdiction
(B) plumbing contractor
(C) general contractor
(D) owner
A permit is not required for ________.
(A) replacing water piping
(B) replacing gas piping
(C) capping a sewer
(D) reinstallation of a water closet
Waste outlets and fixture tailpieces for kitchen sinks, laundry sinks, and bathtubs shall not be less than _______.
(A) 1-1/2 inches I.D.
(B) 1-1/2 inches
(C) 1-1/4 inches
(D) 1-1/4 inches O.D.
The total length of a 1-1/2 inch minimum sized vent pipe that may be installed horizontally is _____ feet.
(A) 20
(B) 30
(C) 40
(D) 60
Vent pipes may offset horizontally when the distance above the overflow level of the fixture is not less than ______.
(A) 1 inch
(B) 1 foot
(C) 6 inches
(D) 18 inches
Each vent pipe or stack shall extend through its flashings and shall terminate vertically not less than _____ inches above the roof.
(A) 6
(B) 12
(C) 18
(D) 24
A factor for determining loss in static pressure from the meter to the highest outlet is ______.
(A) minimum water pressure
(B) elevation above water meter
(C) fixture units
(D) pipe material
The minimum size gas pipe supplying a domestic freestanding gas range using natural gas with a pressure drop of 0.5 inches water column, located 60 feet from the meter (1,100 Btu per cubic foot) is ____ inch.
(A) 1/2
(B) 3/4
(C) 1
(D) 3/8
Closet bends must be cut off so as to present a _______.
(A) smooth surface even with the top of the closet ring
(B) smooth surface even with the floor surface
(C) surface that can be sealed with putty
(D) surface that can be painted
Leaks in gas piping shall be located by applying ______.
(A) fire or acid to the exterior of the piping
(B) noncorrosive leak detection fluid
(C) ether to the interior of the piping
(D) smoke to the interior of the piping
Caulked joints shall be filled with molten lead to a depth of at least ____ inch(es).
(A) 1/2
(B) 3/4
(C) 1
(D) 1-1/2
The cleanout fitting for a 4-inch diameter drain pipe shall not be smaller than ____ inches.
(A) 2
(B) 3
(C) 3-1/2
(D) 4
A floor drain normally requires a 2-inch trap and a 2-inch waste line. In a combination waste and vent system, the size of the trap and waste shall be at least ____ inches.
(A) 2
(B) 2-1/2
(C) 3
(D) 3-1/2
Fuel-burning water heaters shall be ensured an adequate supply of ______.
(A) heat
(B) air
(C) base
(D) A and C
Fuel-burning water heaters may be installed in a closet located in a bedroom provided the closet is equipped with a ______.
(A) deadbolt lock
(B) 12 inch x 12 inch opening
(C) metal door
(D) listed self-closing device
An attic in which a water heater is installed shall be accessible through an opening of not less than ______.
(A) 22" x 30"
(B) 24" x 24"
(C) 30" x 30"
(D) 36" x 36"
Approved drawn-copper alloy tubing traps may be used on fixtures discharging ______.
(A) acid wastes
(B) chemical wastes
(C) urinal wastes
(D) domestic sewage
Standpipe receptors for clothes washers shall extend above the trap not less than ____ inches.
(A) 18
(B) 24
(C) 30
(D) 48
A horizontal drainage line connecting with other horizontal drainage lines shall enter through _________.
(A) tapped tee branches
(B) 45-degree wye branches
(C) sanitary tee branches
(D) 60-degree branches
Where approved by the Authority Having Jurisdiction, sewer piping 8 inches and larger may slope _______.
(A) 1/4 inch per foot
(B) 1/8 inch per foot
(C) 1/16 inch per foot
(D) no limit
After connecting a building to the public sewer, abandoned private sewage disposal facilities shall be backfilled within ____ days.
(A) 15
(B) 30
(C) 45
(D) 90
PEX tubing shall not be installed within the first _____ inches of piping connected to a water heater.
(A) 6
(B) 12
(C) 18
(D) 24
A gallon of water weighs approximately ________.
(A) 8.3 pounds
(B) 62.4 pounds
(C) 16 ounces
(D) 32 ounces
Pressure-relief valves located inside buildings shall be provided with full-size discharge piping that shall extend ______.
(A) outside of the building
(B) under the building
(C) through an air break to a plumbing fixture
(D) by direct connection to a fixture tailpiece
The valve installed on the cold water supply pipe to each water heater shall be _______.
(A) a globe valve
(B) a fullway valve
(C) a needle valve
(D) an angle valve
Of those listed, the discharge line from a sewage ejector shall be provided with _______.
(A) a bypass
(B) a globe valve
(C) an air relief and siphon breaker
(D) a backwater valve and gate valve
Standard trap seals are required to be no less than/nor more than ______.
(A) 1 inch / 3 inches
(B) 2 inches / 4 inches
(C) 3 inches / 6 inches
(D) minimum 1 inch / no maximum
Copper tubing and fittings shall be permitted to be used with DWV systems except for _______ wastes.
(A) condensate
(B) chemical
(C) grease
(D) soil
A room has dimensions of 24 feet x 24 feet x 9 feet. Using the Standard Method for calculating combustion air, this space can support a maximum water heater input rating of how many Btu/h?
(A) 90,000
(B) 95,000
(C) 100,000
(D) 110,000
A rainwater catchment system is designed with an underground storage tank. The tank shall be _______.
(A) not less than 360 gallons capacity
(B) capable of supporting a hydrostatic load of 60 psf
(C) not greater than 5,000 gallons capacity
(D) ballasted or anchored
