CHAPTER 1

1. Water service pipe is classified into seven groups. Which of 8. Buildings with plumbing fixtures and devices shall be
the following is not one of them? provided with a supply of water in sufficient volume and -
a. Asbestos cement _____to enable them to operate in a satisfactory manner at all
b. Copper times.
c. Plastic a. pressure
d. Lead b. quantity
c. quality
2. Water distribution pipe is classified into four categories. d. velocity
Which of the following is not one of them?
a. Lead 9. Galvanic action/galvanic corrosion is caused by which of
b. Copper the following?
c. Plastic a. The galvanizing action during the application of a zinc
d. Brass coating of steel.
b. The plating action of unlike metals.
3. What is the BOCA? c. Two dissimilar metals coming in contact with a liquid or
a. British Overseas Aircraft Company electrolyte covering them.
b. Broadband on all cars d. Two acids and galvanic steel being mixed.
c. Building Officials and Code Administration
d. Building Offices and Code Alterations 10. Sewage or other wastes from a plumbing system shall not
Basic Plumbing Installation Principles be discharged into subsurface soil or into a water ___unless it
has first been properly treated.
4. The drainage of sewage and wastes from a plumbing system a. surface
shall not be discharged into subsurface soil or into a water b. hole
surface unless which of the following occurs? c. pond
a. It has been properly treated. d. river
b. It meets the Clean Water Act’s guidelines.
c. Environmental officials approve.
d. It is cleaner than when it was first used.

5. Which of the following is a type of corrosion that a plumber

should know about?
a. Concentrated cell corrosion
b. Acid corrosion
c. Degenerative corrosion
d. Just plain corrosion

6. Copper pipe is classified into four categories. Which of

these is not one of them?
a. K
b. L
c. DWV
d. N

7. Underground drainage and vent pipe can be made of which

of
the following?
a. Brass
b. Cast iron
c. Concrete
d. Plastic
CHAPTER 2
9. Various lengths of pipe are often connected to form a
1. Pipe is supplied in straight lengths in sections from 12 feet desired length. They may also form, by means of fittings, ___
to ___feet long. and direction changes.
a. 40 c. 30 a. continuity
b. 20 d. 50 b. height
c. length
2. Flow in a piping system is regulated by__ that are specified d. connections
by type, material, size, and working pressures.
a. relays 10. Materials usually used for hot and cold water supply
b. valves systems are not made of ____.
c. check valves a. copper
d. computers b. brass
c. wrought iron
3. Two types of water supply systems are in general use. They d. asbestos cement
arethe downfeed and the___
a. gravity feed
b. upfeed CHAPTER 5: TRUE OR FALSE
c. pumped feed
d. normal pressure feed 1. The use of jute, hemp, or oakum is not permitted
for caulking or for joining water distribution piping
4. A soil vent pipe is the pipe that extends through the roof and connections. TRUE
relieves___ the air pressure resulting from the waste falling or
running down the soil pipe. 2. All plumbing codes require that joints and connections in the
a. high plumbing system be watertight or gas-tight. TRUE
b. low
c. equal 3. Joints in lead pipe (or between lead pipe or fittings) and brass
d. unequal or copper pipe, ferrules, soldering nipples, bushings, or traps
shall be (in some instances) full-wiped joints. FALSE - all
5. Revents are ___ vents used to vent fixtures more than 8 feet
from the main vent and to relieve air pressures on fixtures 4. Flared joints are used when making connections in plastic
located vertically downstream from the water closet. water piping FALSE –soft copper
a. primary
b. secondary 5. ASTM stands for American Standards for Testing
c. tertiary Materials. TRUE
d. open
6. Precast pipe joints are connected with collars TRUE
6. Riser diagrams are elevations or perspective views showing
stacks and risers. They generally are shown only for jobs___. 7. Resilient-type materials are used for connecting lengths of
a. noncomplicated plastic pipe in building sewers on both spigot and bell ends.
b. complicated FALSE-clay
c. simple
d. easy 8. It is recommended that fiber pipe bituminized joints be used
where temperatures exceed readings of 140 ◦F. FALSE –not
7. Fixture takeoff requirements are determined after a study of recommended
the ___ and specifications.
a. floor plan 9. It is recommended that expansion joint materials conform to
b. terrain layout the type of piping in which the expansion joint is being
c. city sewer system installed and that all expansive joints be accessible for
d. drawing inspection purposes. TRUE

8. Soil pipe is commonly listed by standard length 10. A saddle is a correctly contoured device that is commonly
requirements, size, the material, and the strength or ____. used in gravity sewer systems for each variety of pipe. TRUE
a. weakness
b. weight
c. diameter
d. composition
CHAPTER 6 9. Backwater valves are required___
a. at every fixture location within a multistory building.
1. Where are plumbing traps required? b. in locations where fixtures are subject to backpressure.
a. In all floor drains of tall buildings. c. in locations where fixtures are arranged in rows.
b. On all equipment used in the home. d. at free-flowing cold-water pipes in two-story buildings.
c. On a combination fixture with up to two laundry trays and
one sink. 10. Pipe plugs are used to seal stub ends of laterals, reserve
d. On dishwashers. tees and wyes in,____, storm drains, manholes, vaults, septic
tanks,
2. Traps have to be the same size as the ___drain to which the and conduits.
trap connects. a. sewers
a. fixture b. cold-water lines
b. floor c. hot-water lines
c. sink d. vents
d. wall

3. Which of these is not a trap-seal primer required CHAPTER 7

installation?
a. Kitchen sink 1. How many 1.5-volt AA batteries are needed for the
b. Toilets flushometer?
c. Drinking fountains a. 2 c. 4
d. Garbage disposals b. 3 d. 6

4. Where are traps prohibited? 2. How many gallons per flush do most low-consumption
a. If they depend on concealed interior partitions or moving toilets
parts for action. need?
b. If they do not depend on interior partitions or moving parts a. 1.6 c. 2.0
for action. b. 3.5 d. 5.0
c. If they are over 4 inches in diameter
d. If they are of the inverted type. 3. What do you use the strap wrench for?
a. To remove the flushometer couplings
5. Vents cannot be connected ___ b. To install the flushometer couplings
a. at the crown of the trap. c. To install the Optima Plus locking ring
b. at the end of the trap. d. To remove and reinstall the batteries
c. at the beginning of the trap.
d. more than 5 feet away. 4. How are the flush volume regulators identified?
a. By their size
6. Fixture trap seals shall be protected so as to prevent b. By their shape
a. siphonage or backpressure. c. By their edges
b. excessive draining. d. By their color
c. free-flowing effluent.
d. overflows. 5. What is the light beam range in the G-2 Optima Plus when
used on water closets?
7. Cleanouts shall be of a size corresponding to the pipe size a. 15 inches to 30 inches
into which they are installed up to a diameter of inches. b. 22 inches to 42 inches
a. 8 c. 10 inches to 20 inches
b. 6 d. 32 inches to 52 inches
c. 4
d. 3 6. What should you use to clean the chrome surface of the
flushometer?
8. Cleanouts are required ___ a. Bab-0
a. at every change of direction greater than 60 ◦. b. Windex
b. at every change of direction greater than 30 ◦. c. Old Dutch cleanser
c. at every turn in the pipe. d. Soap and water
d. if the pipe is more than 10 feet long.
7. In which finish is the flushometer not available? 4. Requirements for ventilation of toilet rooms include____
a. Chrome a. ventilation by fans
b. Brushed nickel b. ventilation by open window
c. Silver c. ventilation either by forced-draft or direct-opening type
d. Gold extending to the atmosphere
d. ventilation by chemical means to destroy odors
8. What is the minimum pressure needed for operation of the
Act-O-Matic shower head? 5. All wall-hung fixtures are to be ___ secured by metal
a. 45 psi hangers or bolts and floor fixtures by properly placed screw or
b. 35 psi bolts.
c. 25 psi a. rigidly
d. 15 psi b. firmly
c. sloppily
9. How many gallons per flush are needed for modern urinals? d. loosely
a. 1.6 gallons
b. 1.0 gallon 6. All urinals shall be provided with a flushing capacity
c. 1.2 gallons sufficient for the type of urinal used either by hand-operated
d. 5.0 gallons mechanism or by an ____ flush valve.
a. open
10. What is the voltage output of the transformer made for the b. optical
flushometer? c. easy
a. 12 volts d. automatic
b. 24 volts
c. 30 volts 7. All lavatories shall have waste outlets of not less than___
d. 120 volts inch in diameter.
a. 1
b. 2
CHAPTER 8 c. 11/4
d. 11/2
1. Plumbing fixtures are required to have specific
qualities.One of those qualities is that____ 8. Fountains installed for public use shall be made of
a. they must be made of ceramic material impervious materials such as vitreous china, stoneware,
b. they must be made of clay _____, or stainless steel.
c. they may be made with smooth, impervious surfaces with a. cast iron
freedom of defects b. steel
d. they must be made of stainless steel only c. rubber
d. porcelain
2. Seats for water closets recommended for public toilets____.
a. are to have an elongated top with seats of the open-front 9. In public fountains, guards of impervious materials shall be
type made of smooth nonabsorbent materials provided for the fountain nozzles so as to prevent the ____and
b. are to be round topped with seats of the closed-front type mouth of the user from contacting the nozzle.
made of smooth nonabsorbent materials a. nose
c. are to be made of stainless steel to prevent transmittal of b. face
disease c. ears
d. are to be made of ceramic material to promote self-cleaning d. chin

3. Requirements for wall or flooring materials around public- 10. A slip joint is used primarily on the fixture side of a ___
use water closets are____. made tight with a rubber plastic-type washer and a slip nut.
a. absorbent flooring materials at least 18 inches in front of a. drain
the fixture b. trap
b. nonabsorbent flooring materials installed at least 18 inches c. nozzle
from front and on both sides of the closet and extending at d. faucet
least 24 inches up the wall in back
c. absorbent wall materials over ceramic
d. ceramic materials on walls and floor
CHAPTER 9 : TRUE OR FALSE CHAPTER 10

1. It is required that a grease interceptor be installed on waste 1. The minimum allowable size of any building drain,
lines leading from sinks, drains, or other fixtures of horizontal branch, vertical soil, or waste stack serving one or
restaurants, hotel kitchens and bars, clubs, factory restaurants more water closets shall be______.
or cafeterias, hospital kitchens, or any establishment from a. 3 inches
which excessive amounts of grease may be introduced into the b. 4 inches
sewer system. TRUE c. 6 inches
d. 13/4 inches

2. A grease interceptor is not required to be installed for an 2. Building sewer or drainage pipe shall ___be placed in the
individual dwelling unit or for private living quarters. same trench with water service pipe.
TRUE a. or can
b. or will
3. If an establishment has the capacity to serve 10 or more c. not
meals a day, a grease interceptor is considered necessary. d. may
FALSE - 100 or more meals a day
3. Direction changes in drainage piping shall be made by using
4. The installation of a grease interceptor should be such as _______wyes, long- or short-sweep quarter bends, eighth or
to protect it from freezing. TRUE sixteenths ends, or by a combination of these or equivalent
fittings.
a. 60◦
5. Interceptors may not necessarily be readily accessible for b. 45◦
cleaning. FALSE- must be c. 90◦
d. elbow

6. All codes require the periodic removal of accumulated 4. Which one of the following is not a prohibited drainage pipe
grease to keep interceptors in an efficiently operating fitting or connection?
condition. TRUE a. Tapping or drilling of drainage or vent piping.
b. Fittings having a hub in the direction opposite to flow.
c. Tee branches for use as drainage fittings.
7. If more than one fixture discharges into an interceptor, d. Crosses and tees used in the drainage system when used for
only one fixture shall be trapped and vented. sinks or lavatories located back to back.
FALSE – Each such
5. Plumbing traps are devices or fittings used to _____
a. provide a liquid seal to prevent sewer gases from getting
8. Codes require that interceptors be installed in locations into a house or building.
where motor vehicles are serviced and in locations where b. check the flow of hot water in an overflow.
excessive sediment and/or hair may enter the drainage c. check the flow of cold water in case of a break in the line.
lines. TRUE d. prevent overflows and excessive draining.

6. If a plumbing stack serves a toilet, it is called a main stack

9. Harmful wastes are wastes considered to be harmful to or _____ stack.
the piping of a plumbing system and include acids and a. clay
alkalines. TRUE b. cast
c. plastic
d. soil
10. Hot wastes are those with temperatures generally above
180◦F. TRUE
7. The size of the conductor pipe, for a maximum rainfall of 4. Service pipe shall be of adequate size to provide building
4 inches per hour, with a roof area of 2100 square feet shall water requirements during peak demands, and in no instance
be _____ shall the service line be less than_____ nominal diameter.
a. 2 inches a. 1 inch
b. 21/2 inches b. 1/4 inch
c. 3 inches c. 3/4 inch
d. 5 inches d. 2 inches

8. The topmost length of a stack, called the increaser, should 5. Control valves are required for the water distribution system
extend at least _____ inches above the roof. within the building other than provided for in the main service
a. 9 entrance. They include valves for the hot-water tank, the water
b. 12 closet, the ______, and the lawn sprinkler.
c. 36 a. hot-water tank
d. 48 b. urinal
c. shower
9. Roof terminals of stacks and vents, if located within at least d. laundry sink
6 feet of any window, door, scuttle, or air shaft, shall be
extended at least a minimum_____ of above such a location. 6. Friction loss in a pipe accounts for slowing the rate of flow
a. 3 feet and can do the following to the amount of water delivered by
b. 4 feet a pump.
c. 5 feet a. Decrease
d. 2 feet b. Increase
c. Keep the rate the same
10. The recommended average distance of a trap from a vent is d. None of these
.
a. 4 feet for a 11/4-inch pipe 7. What size pipe should be used to connect to a shower?
b. 6 feet for a 11/2-inch pipe a. 1/2 inch
c. 8 feet for a 2-inch pipe b. 1/4 inch
d. 10 feet for a 4-inch pipe c. 3/4 inch
d. 1 inch

CHAPTER 11 8. Automatic and semiautomatic pump installations for water

supply purposes generally employ _____ types of pumps, all
1. From which of these sources is water for domestic use not conforming to the same general principles.
usually obtained? a. three
a. Wells b. two
b. Springs c. one
c. City mains d. four
d. Rivers
9. If you are using a 1/2-inch pipe to furnish water to a
2. Nonpotable water is that supply of water that is unsuitable sprinkler system, the rate of flow of the water would be 200
for ___ gallons per hour. However, if a 1/2-inch nozzle is used, it is
a. drinking necessary to have a pump with a capacity of at least _______
b. flushing toilets gallons per hour to provide the required 200 gallons per hour.
c. washing dishes a. 300
d. putting out fires b. 400
c. 220
3. A copper type of piping material is used in water d. 330
distribution systems. Which of these is not usable?
a. Those that contain toxic substances 10. A vacuum breaker in a water supply is a device used
b. Lead to_______.
c. Plastic a. create a constant flow
d. Stainless steel b. let in air and prevent back-siphonage
c. prevent line breaks
d. eliminate uneven water flow
CHAPTER 12: FILL IN THE BLANKS 3. It is not recommended that plastic pipe be installed in
any______or boxed opening that contains uncirculated hot air,
1. All abandoned septic tanks and pits must have their contents hot water, or steam.
removed and be filled with SAND or gravel. a. tunnel
b. area
2. Percolation test requirements and results do vary depending c. location
on locality TERRAIN and soil conditions. d. place

3. Generally speaking, septic tanks must meet the fabrication 4. The type of plastic pipe that may be used for above- and
or construction standards of the LOCAL plumbing code belowground purposes for drains, waste, and vent piping is
administrative authority. called______.
a. CPVC
4. Concrete tanks shall be backfilled with soil materials not b. DPVC
exceeding 2 inches in size, and it shall be well TAMPED. c. PVC
d. ABS
5. A four-bedroom residence with a one-family occupancy
will need a septic tank with a capacity of 850 gallons if there 5. Horizontal supports for plastic pipe shall not exceed
is no garbage disposal unit, dishwasher, and automatic clothes ______foot spacing.
washer. a. 2 c. 4
b. 3 d. 5
6. Septic tanks (domestic) shall be cleaned when scum or
sludge occupies one-THIRD of the tank volume. 6. Vertical supports for plastic pipe shall not exceed
______foot spacing.
7. In a trailer, the horizontal drainage piping shall be installed a. 2 c. 4
in alignment at a uniform slope of not less than 1/2 inch per b. 3 d. 5
foot.
7. The change in length (in inches) of a 10-foot long vinyl
8. Used materials are PROHIBITED for water supply DWV pipe for a change in operating temperature of 30
installation purposes in residential trailers. degrees is_____
a. 0.036 c. 0.108
9. In a trailer fixture branch drain stack area, there shall be b. 0.0036 d. 0.360
slope at no more than 1/4 inch per foot, and fixture branch
connections at the stack shall be made with sanitary tees. 8. The description for CPVC pipe is_____
a. chlorinated polyvinyl chloride plastic
10. A sanitary sewer is a sewer that carries sewage, but not b. polybutylene plastic piping
storm water, surface water, or GROUND WATER c. chlorinated plastic container
d. chlorinated polyvinyl chloride

CHAPTER 13 9. The drain-waste and vent system carries liquids and solids
out of the building. A typical vinyl drain-waste and vent
1. Joints in plastic plumbing shall be made only with approved system is referred to as a_______
fittings and welded with either solvent or by______ a. DWV system
a. fusion b. drain-way vent system
b. brass c. downward vent system
c. copper d. dominant drain vertical system
d. solder
10. Plastic should be unloaded and handled with care. It can be
2. Plastic pipe for aboveground interior building installations damaged by rocks and debris on a building site. When in
shall not be _______ storage racks, the pipe shall have at least ________evenly
a. CPVC distributed supports for each length of pipe.
b. PVC a. 5
c. PB b. 6
d. Lead c. 4
d. 3
CHAPTER 14 8. Plumbing permits are usually obtained by making ______ to
the area code administrative authorities.
1. Piping for plumbing installation must be watertight and a. an appeal
airtight. The three kinds of tests for determining tightness are b. an application
water, air, and_______. c. a trip
a. smoke d. a call
b. electronic
c. mechanical 9. Permits are not required to repair leaks, remove stoppages,
d. hydro or replace defective parts or fixtures. In all instances, the_____
water supply system shall be protected from contamination.
2. The water test should be applied to all soil,______, and vent a. fresh
pipe in the building. b. test
a. waste c. potable
b. drain d. drainage
c. water
d. hot water 10. Normally, bona fide_____ can personally install plumbing
in their own residences, provided they apply for and secure a
3. The person who conducts the tests on the plumbing system permit, perform their own work in accordance with the local
in a new installation is ________. plumbing code, and receive a work inspection that is approved
a. the apprentice (on completion) by the plumbing code inspector.
b. the licensed plumber on the job a. renters
c. the city inspector b. lessees
d. the building contractor c. owners
d. banks
4. The water test is conducted by closing all openings in the
pipe with approved testing _______ to the highest opening
above the roof and then filling the system completely with CHAPTER 15
water and noting if leaks exist.
a. masking tape 1. Steam is an effective heating medium and is _____ to
b. rubber caps almost any type of building.
c. plugs a. adaptable
d. plastic tape b. useful
c. useless
5. If installed within the walls of the building, it is necessary to d. dangerous
air- or _________test rain conductor pipe.
a. smoke 2. Large piping and radiator ______are required to allow the
b. electronically condensate to return against the resistance offered by the
c. mechanically steam flow.
d. water a. switches
b. valves
6. It is the ______of the plumber holding the permit to make c. fins
sure that the installation is in accordance with locality d. legs
plumbing code requirements.
a. responsibility 3. The ______ gravity steam-heating system was developed to
b. duty overcome the difficulty encountered when steam and
c. job condensate flow against one another in the same pipe.
d. right a. forced
b. induced
7. Water supply systems shall be tested for tightness under c. two-pipe
water pressure of not less than 50 percent greater than the d. single-pipe
proposed use water pressure. Only approved ________ water
shall be used for this test. 4. In a____ system, thermostatic traps are used at each radiator
a. bottled and at the ends of the steam mains.
b. lake a. liquid
c. potable b. heated
d. river c. hot
d. vapor
5. A return-trap heating system closely resembles the
________system, except that the return trap provides a
positive return of condensate to the boiler.
a. vapor
b. single-pipe
c. cold-water
d. liquid

6. The ______ air-line is a variation of the one-pipe steam-

heating
system.
a. filled
b. vacuum
c. wet
d. dry

7. Piping and radiator valves must be oversized to

accommodate the flow of both steam and condensate in the
__________heating system.
a. large
b. small
c. vacuum-air-line
d. gravity

8. The hot-water heating systems transmit only sensible heat to

radiators, as distinguished from steam systems, which heat
principally by the latent heat of _________
a. nature
b. the sun
c. condensation
d. evaporation

9. The _______hot-water systems are used mainly in small

buildings such as homes and small business places.
a. gravity
b. forced
c. liquid
d. cool

10. Radiant _______heating is the method of heating a room

by raising the temperature of one or more of its interior
surfaces, such as floors, walls, or ceilings.
a. slab
b. panel
c. ceiling
d. floor