CONNECTICUT UNLIMITED JOURNEYPERSON
PLUMBER EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFED ANSWERS) Q&A
2026/2027|INSTANT DOWNLOAD PDF
1. What license designation identifies Connecticut's Unlimited
Journeyperson Plumber?
A. P-1
B. P-2
C. P-6
D. J-2
Answer: B. P-2
Rationale: Connecticut designates the unlimited journeyperson
plumbing and piping license as P-2.
2. A Connecticut P-2 journeyperson may perform unlimited
plumbing and piping work under which condition?
A. Only as an independent contractor
B. Only while employed by a properly licensed contractor
C. Only on residential projects
D. Only on commercial projects
Answer: B. Only while employed by a properly licensed
contractor
,Rationale: The P-2 scope permits the work while the
journeyperson is employed by a contractor licensed for that
work.
3. According to the current PSI bulletin, how many questions
are on the P-2 examination?
A. 50
B. 60
C. 70
D. 80
Answer: C. 70
Rationale: The current PSI bulletin lists 70 questions for the P-2
examination.
4. What is the listed minimum passing score for the P-2
examination?
A. 60%
B. 65%
C. 70%
D. 75%
Answer: C. 70%
Rationale: PSI identifies 70% as the passing score for the P-2
exam.
,5. What is the listed time allowance for the P-2 exam?
A. 1 hour
B. 2 hours
C. 2½ hours
D. 3 hours
Answer: C. 2½ hours
Rationale: The current bulletin specifies 2½ hours for the P-2
examination.
6. What is the primary purpose of a plumbing trap?
A. Increase water pressure
B. Prevent sewer gases from entering a building
C. Increase drainage velocity
D. Filter potable water
Answer: B. Prevent sewer gases from entering a building
Rationale: A properly maintained trap seal provides a barrier
against sewer gases entering occupied spaces.
7. What does a plumbing vent primarily provide to a drainage
system?
A. Fuel gas
B. Air circulation and pressure equalization
C. Hot water
D. Water pressure
, Answer: B. Air circulation and pressure equalization
Rationale: Venting helps protect trap seals and allows the
drainage system to operate properly.
8. Which system carries wastewater from plumbing fixtures?
A. Water supply system
B. DWV system
C. Fuel gas system
D. Fire sprinkler system
Answer: B. DWV system
Rationale: Drain-waste-vent systems convey wastewater and
provide necessary venting.
9. What is the function of a cleanout?
A. Increase water temperature
B. Provide access for cleaning drainage piping
C. Prevent water hammer
D. Reduce gas pressure
Answer: B. Provide access for cleaning drainage piping
Rationale: Cleanouts provide access to drainage piping for
inspection and removal of blockages.
10. A drainage pipe should generally be installed with proper
slope primarily to:
PLUMBER EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFED ANSWERS) Q&A
2026/2027|INSTANT DOWNLOAD PDF
1. What license designation identifies Connecticut's Unlimited
Journeyperson Plumber?
A. P-1
B. P-2
C. P-6
D. J-2
Answer: B. P-2
Rationale: Connecticut designates the unlimited journeyperson
plumbing and piping license as P-2.
2. A Connecticut P-2 journeyperson may perform unlimited
plumbing and piping work under which condition?
A. Only as an independent contractor
B. Only while employed by a properly licensed contractor
C. Only on residential projects
D. Only on commercial projects
Answer: B. Only while employed by a properly licensed
contractor
,Rationale: The P-2 scope permits the work while the
journeyperson is employed by a contractor licensed for that
work.
3. According to the current PSI bulletin, how many questions
are on the P-2 examination?
A. 50
B. 60
C. 70
D. 80
Answer: C. 70
Rationale: The current PSI bulletin lists 70 questions for the P-2
examination.
4. What is the listed minimum passing score for the P-2
examination?
A. 60%
B. 65%
C. 70%
D. 75%
Answer: C. 70%
Rationale: PSI identifies 70% as the passing score for the P-2
exam.
,5. What is the listed time allowance for the P-2 exam?
A. 1 hour
B. 2 hours
C. 2½ hours
D. 3 hours
Answer: C. 2½ hours
Rationale: The current bulletin specifies 2½ hours for the P-2
examination.
6. What is the primary purpose of a plumbing trap?
A. Increase water pressure
B. Prevent sewer gases from entering a building
C. Increase drainage velocity
D. Filter potable water
Answer: B. Prevent sewer gases from entering a building
Rationale: A properly maintained trap seal provides a barrier
against sewer gases entering occupied spaces.
7. What does a plumbing vent primarily provide to a drainage
system?
A. Fuel gas
B. Air circulation and pressure equalization
C. Hot water
D. Water pressure
, Answer: B. Air circulation and pressure equalization
Rationale: Venting helps protect trap seals and allows the
drainage system to operate properly.
8. Which system carries wastewater from plumbing fixtures?
A. Water supply system
B. DWV system
C. Fuel gas system
D. Fire sprinkler system
Answer: B. DWV system
Rationale: Drain-waste-vent systems convey wastewater and
provide necessary venting.
9. What is the function of a cleanout?
A. Increase water temperature
B. Provide access for cleaning drainage piping
C. Prevent water hammer
D. Reduce gas pressure
Answer: B. Provide access for cleaning drainage piping
Rationale: Cleanouts provide access to drainage piping for
inspection and removal of blockages.
10. A drainage pipe should generally be installed with proper
slope primarily to:
