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Journeyman's Plumbing Exam with
Answers A+ Graded.
20' - Answer: Underfloor clean-up shall not be located more than _____ from an access door, trap door, or crawl hole
Back Water Valve - Answer: When plumbing fixtures are installed on a floor level lower than the next upstream manhole cover of the sewer, such drainage piping shall be protected from backflow of sewage by a ____________
20 - Answer: Sewage ejectors receiving the discharge of water closets or ruinals shall have a discharge capacity not less than ___ gallons per minute
2" - Answer: What is the minimum size discharge pipe for an ejector installed in a single dwelling?
2" - Answer: The lowest inlet connected to the ejector pump shall have a clearance of not less than ____ from the high water or starting level of the sump.
Yes, with prior approval of the AHJ - Answer: Can macerating toilet systems be installed instead of a sewage pump system
3/4" - Answer: What is the minimum size discharge pipe for a macerating toilet system
1/4" per foot - Answer: What is the minimum pitch required fora 2" horizontal drain?
Swing check valve - Answer: The discharge line from an ejector pump shall be provided with an accessible ___________ and gate or ball valve.
Downstream of the backwater valve - Answer: Where shall the gate valve be located on the discharge line on an ejector pump
8' - Answer: Drainage connections shall not be made into a drainage piping system within ________ of an vertical or horizontal change in direction of a stack containing suds producing fixtures.
10' Head of water for 15 minutes
5 psi for and air test - Answer: What are the requirements when testing the DWV system Water and Air?
When the dwelling is more than 200' away from the sewer. -
Answer: When is the public sewer considered not being available?
2' away from the building - Answer: At what point does the building sewer begin?
Owner or owners agent - Answer: Who is responsible for maintaining the plumbing and drainage system in a building?
Work or systems that have already been installed prior to the
effective date of the existing code. - Answer: What is meant by the term "existing work"?
Blockages or leaks - Answer: What type of work is exempt from a plumbing permit?
180 Days - Answer: If work is not started, how many days is a permit valid?
After it has been tested, inspected, and approved - Answer: When can plumbing work be covered and concealed?
Person with the permit, doing the work - Answer: Who notifies the authority have jurisdiction when plumbing work is ready for inspections?
Prevent siphonage - Answer: What is the purpose of a vacuum relief valve
To slow corrosion of the inside of the tank - Answer: What is the purpose of the anode rod?
To send cold water to the bottom of the tank - Answer: What is the purpose of the dip tube?
To prevent siphonage and back pressure on the dip tube. - Answer: What is the purpose of the anti-siphon hole?
When the water temperature drops below a set temperature the
immersion element turns on to reheat the water. - Answer: Explain how the electric immersion elements work on an electric water heater.
Ohms on a multimeter to check for continuity - Answer: How does a plumber check to see if an immersion element is good or bad
6" above the water heater on the cold water supply - Answer: Where shall the vacuum relief valve be located
fullway valve - Answer: What type of valve is required on the cold water supply to a water heater
18" - Answer: Pex tubing shall not be installed within the first ______ of the pitting connected to a water heater
24" - Answer: What is the maximum length flexible water heater connector allowed
210° - Answer: At what °F will the temperature and pressure valve relieve?
Iron Pipe Size - Answer: What does IPS stand for?
In any building in which plumbing fixtures are installed - Answer: When is a sewer required?
Ashes, Cinder, solids, rags, inflammable, poisonous or explosive
liquids, oils, grease - Answer: Name five materials that are prohibited from entering the drainage system or public sewer.
No - Answer: Can rainwater be discharged into the sanitary drainage system?
They must be moved or relocated to the proper location - Answer: What does the UPC 2009 code say in regard to the improper location of piping, fixtures, or equipment.
No, the section of pipe must be replaced - Answer: Can a plumber use plumbers epoxy to repair a crack in a cast iron soil stack?
They must be reamed - Answer: What shall be done to burred ends of pipe?
Double hub fittings
Single Tee Branch
Double Tee Branch
side inlet quarter bend
running thread bend
saddles - Answer: Name 4 prohibited fittings.
No - Answer: Can a plumber thread cast iron soil pipe?
No - Answer: Can a 2" vent stack be embedded in masonry wall?
12" - Answer: What is the minimum depth below the surface of the ground for a drainage pipe within a building?
No - Answer: Can a vent pipe be installed in an outside wall?
No - Answer: Can water pipes be installed in an outside wall?
With Flashing - Answer: How are vent pipes passing through the roof of a building be made water tight?
18 gauge nail guards must be installed on stud. - Answer: What has to be done with plastic and copper piping within 1" of exposed framing?
Gauge must be for the increment of 1/10 - Answer: A copper DWV system is to be tested with air to a pressure of 5 psi what are the requirements for the gauge to be used for this test?
4' - Answer: What is the maximum horizontal hangar spacing for sch. 40 PVC drainage system?
10' - Answer: What is the maximum horizontal hangar spacing for copper tubing?
-1/2"-1 1/2"
-2+"
32" - Answer: What is the maximum horizontal hanger pacing for pex tubing?
Closet bend flange - Answer: Floor mounted water closets shall be connected to the drainage systems by the means of an approved ____________.
80 - Answer: Threaded plastic pipe shall be schedule ________ minimum wall thickness
1st 3 male - Answer: When pipe joint material is used it shall be applied only on the ______________ threads
1 - Answer: How many traps are permitted on a trap arm?
1 - Answer: How many traps are required far a set of three lavatories that are within the maximum allowable code distance?
30" - Answer: What is the maximum distance that the waste outlets in question 2 can be apart?
Centrally under the middle sink. - Answer: Where shall the trap or traps be located on question 2?
24" - Answer: What is the maximum length for a tailpiece?
A fitting or device so designed and constructed as to provide, when properly vented, a liquid seal that will prevent the back passage of air without materially affecting the flow of sewage or wastewater
through it. - Answer: Define Trap
When the trap is within 2 pipe diameters of the vent stack which in
turn could cause quicker trap evaporation or blockages. - Answer: What does crown venting mean?
90° - Answer: A trap arm can change direction without the use of a cleat provided the change of direction does not exceed _________.
1 - Answer: How many pipe sizes can a trap arm and trap be increased?
S Trap, Bag Trap, J Trap, Bottle Trap, Crown vented trap - Answer: Name 3 prohibited traps.
What are the minimum and maximum trap liquid seal depths -
Answer: 2"-4"
Back Water Valve - Answer: Floor drains subject to reverse flow of sewage or liquid waste shall be equipped with an approved ____________.
When a trap is at risk of losing its seal doe to SAMOBECLP - Answer: When are trap primers required?
Must be vented to prevent back pressure on the inlet side, and must
have a readily accessible cleanout. - Answer: The AHJ has approved the plumber to install building trap. What are the two requirements to be met when installing the building trap?
6" - Answer: Interceptors for sand are required to have a water seal not less than ____________.
When a fixture is draining grease or some other substance that is
hazardous to the sanitary sewer. - Answer: When are grease interceptors required?
individually trapped and vented - Answer: Each fixture discharging into a grease interceptor shall be _______________ and ________________?
food particles will cause blockages in the line - Answer: Why is it not legal for a food waste disposal system to discharge into a grease interceptor?
Flotation, Sedimentation, Neutralization - Answer: What are the three methods for intercepting and treating wastes?
Vented flow control - Answer: Plumbing fixtures or equipment must discharge through an approved type of ___________ before connecting to a hydromechanical grease interceptor.
125 - Answer: A hydromechanical grease interceptor is rated for 50 gallons per minute. What is the total capacity in gallons of fixtures discharging into the interceptor allowed by code?
2 1/2 - Answer: The total capacity in gallons of fixtures discharging into a hydromechanical interceptor shall not exceed ___________ times the certified gym flow rate of the interceptor.
No it must be connected upstream of the disposal - Answer: Is it legal to connect the drain from a dishwasher on the discharge side of a food waste disposal unit?
Yes with the approval of the AHJ - Answer: Can a chemical toilet be installed in a building?
Caulk to create a watertight seal - Answer: When a fixture comes in contact with a wall or floor what must a plumber do?
Brass or a non corrosive material - Answer: What material would meet UPC 2009 requirement for screws or bolts when securing floor mounted fixtures
15" - Answer: What is the minimum side clearance allowed by code from the center of a bidet to a side wall?
30" - Answer: What is the minimum center-to-center distance required by code for a water closet set side-by-side?
24" - Answer: What is the minimum clear space required by code in front of a water closet?
24" - Answer: What are the minimum clearances required by code for a urinal?
from side wall to center? _____ from center-to-center of two urinals set side-by-side?__
elongated bowls - Answer: Water closets for public use shall be of the ___________ type.
open front - Answer: Water closet seats for public use shall be of the _________ type.
Name four allowable materials for closet flanges - Answer: DWV Brass, DWV Copper, DWV PVC, Cast Iron
2" minimum depth - Answer: What is the minimum depth for a caulked-on closet flange?
Vacuum Breaker - Answer: The water supply to a urinal shall be protected by an approved-type _______________ ______________.
1 - Answer: Manually operated flushometers shall be used to control not more than _____ urinal(s).
Toilet rooms, laundry rooms, commercial kitchen - Answer: Name 3 locations floor drains are required by code.
Bidet - 110° - Answer: What is the maximum temperature in F° for hot water to be delivered to:
public lavatory:
bathtub:
shower:
bidet:
1024 square inches - Answer: Shower compartments regardless of shape, shall have a minimum finished interior of _____________.
Lav, WC, Bath/shower, Kitchen sink, Laundry hookup - Answer: List the minimum fixtures required by code for a single family dwelling.
2' - Answer: The non-absorbent wall and floor materials surrounding a urinal shall extend
_______ in front of urinal lip;
_______ above the floor;
_______ to each side of the urinal.
No - Answer: Are trough urinals approved to be installed per UPC 2009?
1" of water column - Answer: The vent system seal be designed to prevent trap seal from being exposed to a pressure differential that exceeds.
Intercepter acts as a primary settling tank and discharges through a
secondary interceptor that is properly trapped and vented - Answer: When can vent piping be omitted on an interceptor?
No, as long as said sinks discharge indirectly into a floor skin or
approved receptor - Answer: Are vents required for traps serving sinks that are part of equipment of bars, soda fountains, and counters?
Sch 40 PVC, Sch 40 ABS, Copper, no hub - Answer: Name four allowable materials for vent piping above ground.
Yellow - Answer: What color marking is used to identify type DWV copper tubing
1 1/4" - Answer: What is the minimum individual vent size allowed by code?
4 - 2" Vent Pipes - Answer: A building requires a 4" building sewer; the plumber wants to use 2" vent pipes though the buildings roof. How many 2" vent pipes are required to meet code?
