CONNECTICUT UNLIMITED JOURNEYPERSON
PLUMBER PRACTICE EXAMINATION QUESTIONS
AND ANSWERS
SECTION 1: GENERAL REGULATIONS AND DEFINITIONS
Question 1
Under Connecticut regulations, what is the minimum experience requirement to qualify for
the Unlimited Journeyperson Plumber examination?
A. 2 years or 3,400 hours of experience
B. 4 years or 6,800 hours of experience
C. 5 years or 8,500 hours of experience
D. 3 years or 5,000 hours of experience
Correct Answer: B
Explanation: The Connecticut Unlimited Journeyperson Plumber license (P-2) requires four
years or 6,800 hours of verified experience, while the Contractor license requires five years
and the Residential license requires two years .
Question 2
A plumbing system must be designed to prevent contamination of potable water supplies.
Which of the following would constitute a prohibited cross-connection?
A. A dedicated hose bib with a vacuum breaker installed
B. A water supply line connected to a boiler with an approved backflow preventer
C. A potable water line directly connected to a refrigeration system's cooling jacket with a
direct drain connection
D. A drinking fountain with an integral air gap
,Correct Answer: C
Explanation: Connecticut regulations explicitly prohibit piping safe water supplies to
refrigeration or other mechanical equipment with direct connections to drains that could
permit contaminated water to be siphoned back into the water supply .
Question 3
A plumbing inspector has identified drainage work that does not comply with plumbing
standards. Which action may the inspector take?
A. Immediately issue a monetary fine
B. Issue a Rectification Notice requiring correction
C. Revoke the plumber's license on the spot
D. Require the plumber to retake the licensing examination
Correct Answer: B
Explanation: When plumbing work is not carried out in accordance with standards,
inspectors may issue a Rectification Notice requiring the work to be corrected. Higher
enforcement actions like infringement notices may follow if non-compliance persists .
Question 4
What is the minimum passing score required for the Connecticut Unlimited Journeyperson
Plumber examination?
A. 65%
B. 70%
C. 75%
D. 80%
Correct Answer: B
Explanation: The Connecticut P-2 Unlimited Journeyperson Plumber examination requires
a minimum passing score of 70%. The exam consists of 70 questions with a 2.5-hour time
limit .
Question 5
,According to Connecticut regulations, where may a water closet NOT be located?
A. In a bathroom with an operable window
B. In a room with mechanical ventilation
C. In a room that is not properly lighted and ventilated to the outer air
D. In a basement with a properly installed sewage ejector system
Correct Answer: C
Explanation: Connecticut regulations require that no water closet be located in a room
that is not properly lighted and ventilated to the outer air, ensuring adequate ventilation for
health and safety .
Question 6
Which of the following best describes the requirement for plumbing fixtures regarding
material composition?
A. Fixtures may be made of any material as long as they are painted with waterproof
coating
B. Fixtures must be made of smooth, nonabsorbent material and free from concealed
fouling surfaces
C. Fixtures must be constructed of metal materials only
D. Fixtures require annual inspection and certification
Correct Answer: B
Explanation: Connecticut regulations mandate that plumbing fixtures be made of smooth,
nonabsorbent material and be free from concealed fouling surfaces to prevent bacterial
growth and ensure proper sanitation .
Question 7
A licensed plumbing contractor is required to notify the authorities when drainage
plumbing work is ready for inspection. What is the primary purpose of this notification?
A. To request payment for completed work
B. To allow inspection before backfilling the trench
C. To obtain a permit extension
D. To schedule final building occupancy inspection
, Correct Answer: B
Explanation: Drainage plumbing work must be inspected while still accessible, before
trench fill is placed. The licensed contractor is responsible for testing drainage work in
accordance with applicable standards prior to backfilling .
Question 8
What is the primary purpose of the plumbing venting system?
A. To provide drainage for roof rainwater
B. To allow circulation of air and protect trap seals from siphonage and back pressure
C. To supply hot water to fixtures throughout the building
D. To support the weight of drainage piping
Correct Answer: B
Explanation: The venting system provides air circulation within the drainage system,
protecting trap seals from siphonage and back pressure. This prevents the loss of water
seals that would allow sewer gases to enter the building .
Question 9
A building has a tenement with four rooms that was constructed in 1935. How many water
closets are required?
A. One water closet for each apartment of four or more rooms
B. One water closet for each two apartments of three rooms or less
C. One water closet for each apartment of three or more rooms
D. One water closet for each apartment
Correct Answer: C
Explanation: Tenement houses erected after August 31, 1930, and prior to July 1, 1941,
must have a water closet in each apartment of three or more rooms, with at least one water
closet for each two apartments of less than three rooms .
Question 10
PLUMBER PRACTICE EXAMINATION QUESTIONS
AND ANSWERS
SECTION 1: GENERAL REGULATIONS AND DEFINITIONS
Question 1
Under Connecticut regulations, what is the minimum experience requirement to qualify for
the Unlimited Journeyperson Plumber examination?
A. 2 years or 3,400 hours of experience
B. 4 years or 6,800 hours of experience
C. 5 years or 8,500 hours of experience
D. 3 years or 5,000 hours of experience
Correct Answer: B
Explanation: The Connecticut Unlimited Journeyperson Plumber license (P-2) requires four
years or 6,800 hours of verified experience, while the Contractor license requires five years
and the Residential license requires two years .
Question 2
A plumbing system must be designed to prevent contamination of potable water supplies.
Which of the following would constitute a prohibited cross-connection?
A. A dedicated hose bib with a vacuum breaker installed
B. A water supply line connected to a boiler with an approved backflow preventer
C. A potable water line directly connected to a refrigeration system's cooling jacket with a
direct drain connection
D. A drinking fountain with an integral air gap
,Correct Answer: C
Explanation: Connecticut regulations explicitly prohibit piping safe water supplies to
refrigeration or other mechanical equipment with direct connections to drains that could
permit contaminated water to be siphoned back into the water supply .
Question 3
A plumbing inspector has identified drainage work that does not comply with plumbing
standards. Which action may the inspector take?
A. Immediately issue a monetary fine
B. Issue a Rectification Notice requiring correction
C. Revoke the plumber's license on the spot
D. Require the plumber to retake the licensing examination
Correct Answer: B
Explanation: When plumbing work is not carried out in accordance with standards,
inspectors may issue a Rectification Notice requiring the work to be corrected. Higher
enforcement actions like infringement notices may follow if non-compliance persists .
Question 4
What is the minimum passing score required for the Connecticut Unlimited Journeyperson
Plumber examination?
A. 65%
B. 70%
C. 75%
D. 80%
Correct Answer: B
Explanation: The Connecticut P-2 Unlimited Journeyperson Plumber examination requires
a minimum passing score of 70%. The exam consists of 70 questions with a 2.5-hour time
limit .
Question 5
,According to Connecticut regulations, where may a water closet NOT be located?
A. In a bathroom with an operable window
B. In a room with mechanical ventilation
C. In a room that is not properly lighted and ventilated to the outer air
D. In a basement with a properly installed sewage ejector system
Correct Answer: C
Explanation: Connecticut regulations require that no water closet be located in a room
that is not properly lighted and ventilated to the outer air, ensuring adequate ventilation for
health and safety .
Question 6
Which of the following best describes the requirement for plumbing fixtures regarding
material composition?
A. Fixtures may be made of any material as long as they are painted with waterproof
coating
B. Fixtures must be made of smooth, nonabsorbent material and free from concealed
fouling surfaces
C. Fixtures must be constructed of metal materials only
D. Fixtures require annual inspection and certification
Correct Answer: B
Explanation: Connecticut regulations mandate that plumbing fixtures be made of smooth,
nonabsorbent material and be free from concealed fouling surfaces to prevent bacterial
growth and ensure proper sanitation .
Question 7
A licensed plumbing contractor is required to notify the authorities when drainage
plumbing work is ready for inspection. What is the primary purpose of this notification?
A. To request payment for completed work
B. To allow inspection before backfilling the trench
C. To obtain a permit extension
D. To schedule final building occupancy inspection
, Correct Answer: B
Explanation: Drainage plumbing work must be inspected while still accessible, before
trench fill is placed. The licensed contractor is responsible for testing drainage work in
accordance with applicable standards prior to backfilling .
Question 8
What is the primary purpose of the plumbing venting system?
A. To provide drainage for roof rainwater
B. To allow circulation of air and protect trap seals from siphonage and back pressure
C. To supply hot water to fixtures throughout the building
D. To support the weight of drainage piping
Correct Answer: B
Explanation: The venting system provides air circulation within the drainage system,
protecting trap seals from siphonage and back pressure. This prevents the loss of water
seals that would allow sewer gases to enter the building .
Question 9
A building has a tenement with four rooms that was constructed in 1935. How many water
closets are required?
A. One water closet for each apartment of four or more rooms
B. One water closet for each two apartments of three rooms or less
C. One water closet for each apartment of three or more rooms
D. One water closet for each apartment
Correct Answer: C
Explanation: Tenement houses erected after August 31, 1930, and prior to July 1, 1941,
must have a water closet in each apartment of three or more rooms, with at least one water
closet for each two apartments of less than three rooms .
Question 10
