Journeyman's Exam
Questions and Complete
Solutions Graded A+
1/4" - Answer: Threads of drainage fittings shall be tapped as to allow _____ pitch per foot
4 lbs - Answer: Lead used for safe pans shall not be less than ________ per square foot
Copper Tube, Cast Iron, Stainless steel, ABS, PVC DWV - Answer: Name 3 allowable materials for the
DWV system "underground"
1-1/4" - 1 dfu's
1-1/2" - 3 dfu's
2" - 4 dfu's
3" 6 dfu's
4" - dfu's - Answer: What are the fixture unit values for the following traps
Double fixture fitting - Answer: What type of fitting is used for continuous waste and venting of
lavatories back to back?
1" - Answer: Caulk joints for cast iron bell and spigot shall be filled with molten lead to a depth of not
less than ________?
Wye, Combination Wye w/ 1/8 bend, Long sweep - Answer: What type of fitting or fittings can be used
to connect horizontal drainage to another horizontal drainage line?
- Each horizontal drainage pipe shall be provided with a cleat at its upper terminal
,- Horizontal run more than 100'
- Each horizontal change of direction exceeding 135°
- Front Main Cleanout - Answer: Cleanout locations required by code
100' - Answer: Maximum distance a cleanup can be spaced apart
12"
18" - Answer: Minimum clearance in front of a cleanup for 2" or less
Minimum clearance in front of a cleanup for 2" or more
20' - Answer: Underfloor cleanup 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?
DFU's - Answer: How is the size of the building sewer determined?
300' - Answer: What is the maximum distance allowed between approved manholes?
12" - Answer: When a water pipe and sewer pipe are placed in a common trench what is the minimum
distance above the top of the sewer line to the bottom of the water pipe?
12" - Answer: When a water pipe and sewer pipe are placed in a common trench what is the minimum
clear horizontal distance the water pipe shall be from the sewer pipe?
By taking 80% of the total DFU's = 173 DFU's - Answer: A 4' drainage line has to be run at a pitch of 1/8"
per foot. How is the maximum fixture unit low now determined?
Questions and Complete
Solutions Graded A+
1/4" - Answer: Threads of drainage fittings shall be tapped as to allow _____ pitch per foot
4 lbs - Answer: Lead used for safe pans shall not be less than ________ per square foot
Copper Tube, Cast Iron, Stainless steel, ABS, PVC DWV - Answer: Name 3 allowable materials for the
DWV system "underground"
1-1/4" - 1 dfu's
1-1/2" - 3 dfu's
2" - 4 dfu's
3" 6 dfu's
4" - dfu's - Answer: What are the fixture unit values for the following traps
Double fixture fitting - Answer: What type of fitting is used for continuous waste and venting of
lavatories back to back?
1" - Answer: Caulk joints for cast iron bell and spigot shall be filled with molten lead to a depth of not
less than ________?
Wye, Combination Wye w/ 1/8 bend, Long sweep - Answer: What type of fitting or fittings can be used
to connect horizontal drainage to another horizontal drainage line?
- Each horizontal drainage pipe shall be provided with a cleat at its upper terminal
,- Horizontal run more than 100'
- Each horizontal change of direction exceeding 135°
- Front Main Cleanout - Answer: Cleanout locations required by code
100' - Answer: Maximum distance a cleanup can be spaced apart
12"
18" - Answer: Minimum clearance in front of a cleanup for 2" or less
Minimum clearance in front of a cleanup for 2" or more
20' - Answer: Underfloor cleanup 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?
DFU's - Answer: How is the size of the building sewer determined?
300' - Answer: What is the maximum distance allowed between approved manholes?
12" - Answer: When a water pipe and sewer pipe are placed in a common trench what is the minimum
distance above the top of the sewer line to the bottom of the water pipe?
12" - Answer: When a water pipe and sewer pipe are placed in a common trench what is the minimum
clear horizontal distance the water pipe shall be from the sewer pipe?
By taking 80% of the total DFU's = 173 DFU's - Answer: A 4' drainage line has to be run at a pitch of 1/8"
per foot. How is the maximum fixture unit low now determined?
