Font size
WorksheetsPlumbing Code Review
Total questions: 139
Worksheet time: 7hrs 50mins
This document shall be known as the
Uniform Plumbing Code
Universal Plumbing Code
National Plumbing Code
World Plumbing Code
Plumbing systems for which a permit is required by this code shall be inspected by the
building inspector
Authority Having Jurisdiction
mechanical inspector
health department
The Authority Having Jurisdiction shall be notified that work is ready for inspection not less than____ hours before the work is to be inspected.
72
24
48
12
If a court finds a portion of the code unconstitutional
the entire code is invalid
the rest of the code remains in force and valid
that portion is still valid
the Authority Having Jurisdiction can overrule the court decision
Temporary connection of the plumbing equipment to the source of energy or fuel for the purpose of testing
is not allowed unless the inspector is present
shall be permitted to be authorized by the Authority Having Jurisdiction
is not allowed unless the equipment has been inspected and approved
is not allowed under any circumstances
A room equipped with a shower or bathtub is a
toilet room
shower room
bathroom
washroom
That part of the lowest piping of a drainage system that receives the discharge from soil, waste, and other drainage pipes inside the walls of the building and conveys it to a point 2 feet outside the building wall is a
building drain
building sewer
soil stack
waste pipe
The combination of fittings that may be used to make an offset and is considered a vertical pipe are
1 - 90 degree and 1 - 45 degree
2 - 90 degree and 1 - 45 degree
1 - 45 degree and 1 - 60 degree
1 - 45 degree and 1 - 45 degree
The part of the horizontal piping of a drainage system that begins_______ feet downstream from the last mobile home site, and conveys it to a public sewer is called a mobile home park sewer.
2
3
3-1/2
5
The pipe or duct that connects a fuel-gas-burning water heater to a vent or chimney is a
flue collar
vent connector
collar connector
chimney collar connector
The pipe from the source of supply to a building or structure is the
water main
building supply
water-distributing pipe
water riser
A physical separation that may be a low inlet into the indirect waste receptor from the fixtures, appliances, or devices indirectly connected is the definition for an
airbreak
airgap
indirect waste
individual vent
Disposal of sewage, or other liquid wastes, shall be by means of
chemical toilets
sewage-retaining tanks
the drainage system of the building or premises
subsurface leaching pits
A connection to the public sewer, or private sewage disposal system, is required for
buildings with or without plumbing fixtures
buildings with plumbing fixtures
buildings with emergency drain systems
buildings with storm drain systems
Except as otherwise provided in this code, no plumbing system, drainage system, building sewer, private
sewage disposal system, or parts thereof, shall be located in
the walls, floors, or underground in any building
any lot other than the lot that is the site of the building served by such facilities
pipe access spaces where accessible for repair
any garage, or equipment or locker room
The building drain from the front building may be extended to the rear building when both buildings are
located and no private sewer is available or can be constructed
on a corner lot
on an interior lot
200 feet from the public sewer
300 feet from the public sewer
Cast-iron soil pipe, installed vertically, shall be supported at its base and
each floor not to exceed 15'
every other story
5-foot intervals
10-foot intervals
Two-inch copper drain pipe installed horizontally shall be supported at intervals not exceeding
4 feet
10 feet
6 feet
12 feet
All materials, fixtures, or devices used or entering into the construction of plumbing and drainage systems shall
comply with approved applicable standards
conform to green product standards
conform to price of job
conform to material availability
Section 312.2 prohibits the direct embedment of hubless cast-iron pipe in a concrete slab.
True
False
Drain pipes subject to condensation over food storage in food-handling establishments shall be
installed with a spill pan
thermally insulated
rerouted out of area
tested with 5 psi of air
Test gauges shall not have a pressure range not exceeding
the test pressure applied
twice the test pressure applied
15 psi
60 psi
Fixtures having concealed slip-joint connections shall be provided with
a utility space or access panel
a ladder and a light fixture
red brass fittings
rubber gaskets
The diameter of a waste outlet and fixture tailpiece for a bathtub shall not be less than
1 1/4 inches in diameter
1 3/8 inches in diameter
1 1/2 inches in diameter
2 inches in diameter
Trough urinals shall be
permissible if constructed of concrete
required in large associations
prohibited
allowed in bus stations
With two noted exceptions, all shower compartments and receptors shall be capable of encompassing a diameter circle.
24 inch
30 inch
33 inch
36 inch
Drinking fountains shall not be installed in
public toilet rooms
restaurants
bars
schoolyards
Shower pan linings may be constructed with
26 B&S gauge copper
3 pounds per square foot lead
15 pounds asphalt felt
zinc-coated steel
Water closets set side by side shall be no closer than
15 inches center-to-center
18 inches center-to-center
24 inches center-to-center
30 inches center-to-center
The minimum distance from a side wall or partition to the center of a urinal shall be_____ inches
6
12
18
24
The joint of a wall-hung lavatory, where it is in contact with the wall, shall be
smooth
painted
concealed
made watertight
Wall-hung lavatories shall be supported by
metal supporting members
rigid traps
wooden legs
their connections
The tailpiece diameter for lavatories shall not be less than
1 1/4 inches
1 3/8 inches
1 1/2 inches
1 3/4 inches
Strainers having waterway areas at least equivalent to the area of their tailpiece are required for
shower drains
floor drains
urinals
A and B apply
Showers and tub-shower combinations shall be provided with individual control valves of the
pressure balance type
thermostatic mixing valve type
140°F limit control type
A and B apply
Maximum hot water temperature discharging from a bidet shall be limited to
105°F
110°F
120°F
not limited
Closet bends or stubs shall be cut off so as to present a smooth surface, even with the
top of the rough floor
top of the closet ring
top of the finish floor
bottom of the closet
A domestic dish washing machine shall discharge indirectly through an air gap fitting into a
wye branch fitting on the tailpiece of a kitchen sink
waste receptor
dishwasher connection of a food waste disposer
all of the above
Plastic piping used for venting water heaters shall be
CPVC
Schedule 80 PVC
Schedule 80 ABS
approved
It shall be unlawful for any person to install, remove, or replace any water heater without first
obtaining a plumbing contractor license from the Authority Having Jurisdiction
obtaining a permit from the Authority Having Jurisdiction
having a plumbing journeyman's license
having permission from the building owner
Vent connectors of natural draft appliances_________ be connected to mechanical draft systems operating under positive pressure.
may
shall not
must
must be interlocked before they can
A vent connector connected to a chimney flue serving a fireplace is
prohibited unless the fireplace flue opening is permanently sealed
prohibited
required to be a direct-vent type
required to use Type B connector
The minimum capacity for a storage water heater is
not regulated by code
required to be a minimum of 40 gallons
required to be a minimum of 50 gallons
based on the "first hour rating" and the number of bedrooms and bathrooms
A water heater installed in a residential garage shall be
listed for a garage installation
located or protected from damage by a moving vehicle
located not less than 16 inches above the garage floor
a direct-vent water heater
Water heaters of other than the direct-vent type shall be located
within 6 feet of the chimney or gas vent
within 8 feet of the chimney or gas vent
as close as practical to the chimney or gas vent
as close as practical to the chimney or gas vent
A three-bedroom home with two bathrooms is equipped with a gas storage-type water heater. The minimum capacity for the water heater in accordance with the first hour ratings is
40 gallon
50 gallon
67 gallon
80 gallon
Indoor combustion air supplied by using the "Standard Method" requires a minimum volume of
100 cu. ft. per 1,000 Btu/hr
50 cu. ft. per 1,000 Btu/hr
50 cu. ft. per 2,000 Btu/hr
25 cu. ft. per 2,000 Btu/hr
Draft hood-equipped and other fuel-burning Category I water heaters may be installed in closets, bedrooms and bathrooms provided
the appliance is listed
the closet is of fire-resistant construction
the closet has a listed, gasketed door assembly and a listed self-closing device
combustion air is provided by adjacent room
Where damage may result from a leaking water heater, a watertight pan of corrosion-resistant materials
shall be installed beneath the water heater when it is located in an attic or
second-floor mechanical room
garage
any story above the first story
a floor-ceiling assembly
A water heater is installed on the roof of a building more than 15 feet in height. The code requires to the roof unless other means acceptable to the Authority Having Jurisdiction are used
a permanent ladder outside the building
a portable ladder
an outside means of access
an inside means of access
In seismic design categories , water heaters shall be anchored or strapped to resist horizontal displacement due to earthquake motion.
3 and 4
A, 8, C, and D
C, D, E, and F
1 and 2
Where utilizing louvers and grills to provide combustion air, and the design and free area are not known, it shall be assumed that wood louvers will have percent free area and metal louvers and grills will
have percent free area.
50, 25
25, 75
25, 50
50, 75
Exit terminals of mechanical draft systems shall not be less than above grade where located adjacent to public walkways.
6 feet
7 feet
10 feet
8 feet
Clearances for listed water heaters shall be
a minimum of 1 inch to combustible construction
a minimum of 2 inches to combustible construction
in accordance with the listing and the manufacturer's instructions
a minimum of 6 inches to unprotected combustible construction
Where providing combustion air for draft hood-equipped water heaters installed in repair garages, all combustion air shall be obtained from
inside the repair garage
inside the building
inside or outside the building at least 8 feet above floor level
outside the building
A Type B gas vent shall terminate at least feet above the highest connected equipment draft hood or flue collar.
12
6
5
10
A listed water heater, located in an interior floor level closet, must have an access dimension_____for servicing purposes.
24"w x 30"h
in accordance with their listing and the manufacture's instructions
30"w x 36"h
the size of the water heater
For attic installation, the passageway and servicing area adjacent to the appliance shall be
identified
well lighted
dry
floored
The code requirement for "an adequate supply of potable running water" is for
cleansing and sanitation
protection of trap seals
water-cooled equipment
hydronic systems
Ballcocks in water closet tanks shall be installed so that the critical level of the water inlet is above the full opening of the overflow pipe at least____
1/2 inch
1 inch
3 inches
6 inches
PEX tubing shall not be installed within the first_____of piping connected to a water heater.
12 inches
18 inches
24 inches
36 inches
The piping material(s) not approved in the cold water piping located inside a building is_________
PVC
PE
Asbestos Cement
all of the above
Water piping systems shall be designed on the basis of the
maximum pressure
minimum pressure
average residual pressure
average service pressure
After allowing for friction and other pressure losses, the residual water pressure shall be at least
.433 psi
7.5 psi
15 psi
29 psi
Any water heater connected to a separate storage tank and having valves between the heater and tank
shall be provided with a
fullway valve
fullway gate valve
water pressure regulator
water pressure-relief valve
Galvanized steel piping installed under a concrete floor slab within a building shall
have a machine-applied coating
have a spiral wrap
be installed without joints
be installed with brazed joints
Cast-iron fittings, up to and including two inches in size, when used in connection with potable water piping, shall be
extra heavy
flanged
disallowed
galvanized
The available pressure at the water meter is 80 psi. At the highest supply outlet, 36 feet above the water
meter, the pressure would be_____ psi when sizing a water system according to Chapter 6.
62
44
116
80
Building supplies shall be no smaller than that required for the installation and, in no case, smaller than inch(es).
1/2
3/4
1
2
CPVC water pipe may be used for hot and cold water distribution systems
in residences only
within a building
belowground only
aboveground only
All backflow devices or assemblies shall be tested by a
licensed agent
representative from the Authority Having Jurisdiction
certified backflow assembly tester
third-party certified agency
Other than systems sized by the use of Table 610.4, the maximum velocity of a cold water system containing copper and copper alloy tube and fittings shall be limited to
5 feet per second
8 feet per second
10 feet per second
15 feet per second
The quantity of water required to be supplied to every plumbing fixture shall be represented by
gallons per minute
feet per second
fixture units
available head pressure
The size and material of irrigation water piping installed outside of any building and separated from the
potable water supply by means of an approved backflow prevention device is
regulated by code
not regulated by code
regulated by the National Sanitation Foundation
regulated by the American Society of Sanitary Engineers
Flaring tools are used to make joints for
hard Type K copper tubing
soft copper water tubing
yellow brass water piping
aluminum water piping
Whenever fixtures and/or fixture fittings are installed that require a residual water pressure higher than 15
pounds per square inch
that minimum pressure shall be provided
provisions shall be made to use fixtures that do not require higher residual pressure
the piping system shall be not less than copper tubing Type L
A and C apply
The duration for a water system pressure test shall be for a period of not less than____ minutes
5
10
15
30
Plastic materials for piping outside underground shall have a blue insulated copper tracer wire or other approved conductor installed adjacent to the piping.
building supply
well
irrigation
hose bibb
Solder and fluxes used in piping systems conveying potable water are prohibited when the lead content exceeds
0.2 of 1 percent
0.5 of 1 percent
1 percent
less than 10 percent
________systems shall be clearly identified, have a purple background with uppercase yellow lettering.
Gray water
Reclaimed (recycled) water
Rainwater catchment
None of those listed
The area of coverage of a single fire sprinkler shall not exceed
100 square feet
200 square feet
300 square feet
400 square feet
The maximum fixture unit loading allowed on a 2 inch waste stack is
four
six
eight
sixteen
The maximum trap loading for a 3 inch trap is
one unit
three units
four units
six units
The maximum discharge capacity for intermittent flow only, in gallons per minute, for one fixture unit is equal to
7 1/2 gpm
15 gpm
30 gpm
50 gpm
The clearance required in front of a 2 inch cleanout shall not be less than
6 inches
12 inches
18 inches
24 inches
The minimum size discharge pipe from an ejector or pump in a single dwelling unit having a water closet connected thereto is
1 1/2 inches
2 inches
3 inches
4 inches
Except in single-family residences, drainage
stacks 3 stories or more in height serving are considered suds-producing fixtures.
kitchen sinks
bathtubs
washing machine standpipes
all of the above
Vertical drainage lines connecting with horizontal drainage lines shall enter through a
45 degree wye
90 degree tee
combination wye and 1/8 bend
A and C apply
The maximum fixture units allowed on a 4-inch horizontal drain with a 1/8 inch per foot slope is
256 fixture units
225 fixture units
215 fixture units
173 fixture units
A straight run of building sewer will require cleanouts at intervals not to exceed
50 feet
75 feet
100 feet
300 feet
ABS and PVC DWV piping may be installed in structures of
noncombustible construction
unlimited height
combustible construction
all of these
Threads in drainage fittings shall be tapped to allow for
adjustment
grade
expansion
economy
33. The maximum number of fixture units allowed on a 4-inch building sewer with a slope of 1/8 inch per foot,
as compared to a 4-inch building sewer with a slope of 1/4 inch per foot is
the same
less
more
unlimited
The drainage fixture unit value assigned to a bathtub or combination bath/shower is
1.5
2.0
2.5
3.0
The building sewer and water piping may be installed in the same trench (with the proper clearances) if
the building sewer piping is .
cast iron
extra strength vitrified clay
PVC
any of the above
A domestic dishwasher, with independent drain, has a drainage fixture unit value of
2
3
4
1
All indirect waste piping that requires an airgap shall discharge into the building drainage system through
an automatic vent
an airgap of two pipe diameters
a drainage airgap of 1 inch minimum
a trap
Drains, overflows, or relief pipes from a water distribution system shall discharge to the building drain by
indirect waste by means of a water-distribution airgap
direct connection to the building drain
direct connection to the building drain through a trap
indirect waste piping through a vented trap
No plumbing fixture that is receiving discharge from indirect waste pipes shall be installed until first
approved by the
architect
local health department
Authority Having Jurisdiction
mechanical engineer
A standpipe for a clothes washer shall have a minimum and maximum length of
4 inches and 12 inches
18 inches and 30 inches
18 inches and 24 inches
12 inches and 36 inches
A domestic dishwashing machine shall be connected to the drainage system by using
a direct connection
a double-check valve
an approved airgap fitting
a hartford loop
Water having a temperature above____shall not be discharged under pressure directly into the drainage system
212° F
180° F
140° F
232° F
________shall not be used for chemical or industrial waste that requires pretreatment.
Glass
PVC
Cast-iron
Copper tube
No chemical waste vent shall
terminate outside the building
be connected to any vent from water service lines
intersect vents for other services
connect to any waste line
Condensate from fuel-burning condensing appliances shall be collected and discharged
to a planter box
to a public way
to an approved plumbing fixture or disposal area
directly connect to the building sewer
If the trap from a sink located in a bar cannot be vented,
the drain shall discharge through an airgap or airbreak into an approved receptor that is vented
the fixture must be relocated
the discharge may be pumped to an approved receptor
a drum trap shall be used
Vent pipes protect fixture traps against
evaporation
siphonage
clogging
cross-connections
The combination of vent pipes that will provide sufficient aggregate cross-sectional vent area for required
a 4-inch house sewer is
1 - 2 inch and 4 - 1 1/2 inch
2 - 2 inch and 1 - 2 1/2 inch
3 - 2 inch and 1 - 1 1/2 inch
4 - 2 inch
A 2-inch vent pipe will serve a total of
14 bathtubs
16 showers
24 lavatories
15 water closets
Horizontal termination of vents from any openable window, door opening, air intake or vent shaft shall be not less than
1 foot
2 feet
10 feet
12 feet
Vents terminating in roof areas used for sunbathing shall be extended above the roof at least
7 feet
10 feet
12 feet
15 feet
Parallel vent stacks are required for drainage stacks that extend above the building drain
five stories or more
10 stories or more
50 feet
100 feet
The pipe size for the common vent serving lavatories installed back-to-back shall be not less than inch(es).
1
1-1/4
1-1/2
2
Increasing vents one pipe size will
provide increased drainage
provide increased drainage
remove lengths limitations
allow vents to be shorter
The fitting that is required for making the yoke vent intersection with the drainage stack is a
sanitary tee
tapped tee
double tee branch
wye branch
Copper tube shall not be used for
chemical or industrial wastes
water piping
underground drainage piping
aboveground drainage piping
Long mains shall be provided with relief vents at intervals of
50 feet
75 feet
100 feet
300 feet
Horizontal wet venting
is not permitted by the code
shall be permitted for public bathrooms
shall be permitted for a bathroom group located on the same floor level
shall be a minimum 4 inches in size
A horizontal wet vent shall be not less than two inches in diameter for dfu or less.
2
4
5
8
One trap may serve a set of not more than________single compartment sinks
two
one
three
four
The maximum vertical distance for a tailpiece allowed between a fixture and the trap weir is
6 inches
12 inches
18 inches
24 inches
The developed length of a 2" trap arm, from the trap weir to the inner edge of the vent shall not exceed_____feet.
3
5
6
10
Each fixture trap shall have a water seal of
not less than 2 inches
not more than 4 inches
both A and B
none of the above
The Authority Having Jurisdiction has mandated grease pretreatment for the following fixtures: four non emergency floor drains, two commercial food prep sinks, one service sink with a 3-inch trap, and two dishwashers discharging 20 gallons per minute each. The minimum size gravity grease interceptor in gallons required shall be_____
500
750
1000
1250
Horizontal 1/2 inch diameter steel fuel gas piping shall be supported at intervals not exceeding _______ feet.
6
8
10
12
The approximate number of threads to be cut on a piece of 1-inch metallic fuel gas pipe is_____
10
11
12
13
Where gas piping is installed underground beneath buildings, the piping shall be one of the following
polyethylene
20 mil gas protective coating
encased in an approved conduit
encased in cement
The approximate demand of a freestanding domestic gas range in Btu's per hour is
65,000
40,000
30,000
25,000
Gas line pressure regulators installed in the interior of the building, without vent limiting means, shall be
removed and installed on the exterior only
installed in a concealed but accessible location
separately vented to the exterior of the building
installed at least 6 feet aboveground and accessible
Of those listed, the test medium for a gas piping pressure test shall be
carbon monoxide
carbon dioxide
oxygen
methane gas
An accessible gas shutoff valve shall be provided _____ of each gas pressure regulator.
upstream
downstream
individually
separately
Appliance shutoff valves and convenience outlets shall serve a single appliance and shall be installed within ______ of the appliance it serves.
within 8 feet
within 6 feet
upstream of the connector
both B and C
Which of the following is not part of a rough gas piping inspection?
Size of gas pipe
Proper material
Pressure test
Installation meets the requirements of the code
Leaks in gas piping shall be located
with an approved gas detector, a noncorrosive leak detection fluid or other approved method
with a "presto-lite" flame
with water
by increasing the air pressure during the test until the leaks are heard as a whistle
A gas appliance regulator shall not be vented to the
combustion chamber adjacent to a continuous pilot
roof
gas equipment flue or exhaust system
exterior of the building
The size of the supply piping outlet for a gas appliance shall not be less than _______
1/2 inch
3/4 inch
1 inch
as determined by the gas table in the code
The size of a piping outlet for a mobile home shall be not less than
1/2 inch
3/4 inch
1 inch
as determined by the gas tables in the code
To obtain the cubic feet per hour of fuel gas required for any gas appliance
divide the Btu input of the appliance by the average Btu heating value per cubic foot of gas
divide the Btu input of the appliance by 1,000
contact the Authority Having Jurisdiction or the local inspector
obtain the manufacturer's specifications
Except for CSST, gas piping with a service pressure of 1.58 psi shall be tested at a minimum of ______ psi for no less than ______ minutes.
3, 10
10, 15
30, 30
60, 30
