NEW YORK MASTER PLUMBER LICENSING
EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES Q $A
2026 INSTANTANT DOWNOAD PDF
Which code primarily governs plumbing installations in New York City?
A. International Plumbing Code
B. Uniform Plumbing Code
C. New York State Plumbing Code
D. NYC Construction Codes
Answer: D
NYC Construction Codes, including the NYC Plumbing Code, are adopted
and enforced by the NYC Department of Buildings.
1. Who is legally responsible for plumbing work performed under a
permit?
A. Apprentice
B. Journeyman
C. Property owner
D. Licensed Master Plumber
Answer: D
A Master Plumber assumes legal responsibility for all permitted
plumbing work.
2. When is a plumbing permit required?
A. Replacing a faucet
, B. Clearing a stoppage
C. Installing new piping
D. Adjusting a valve
Answer: C
New installations or alterations require permits.
3. Which NYC agency enforces plumbing regulations?
A. EPA
B. OSHA
C. DOB
D. DEP
Answer: C
The Department of Buildings enforces the plumbing code.
4. Minimum PPE when cutting cast iron pipe includes:
A. Gloves only
B. Safety glasses only
C. Gloves and safety glasses
D. Hard hat only
Answer: C
Eye and hand protection are mandatory.
5. Class B fire extinguishers are for:
A. Ordinary combustibles
B. Flammable liquids
C. Electrical fires
D. Combustible metals
Answer: B
Class B covers flammable liquids.
, 6. What is the minimum trap seal depth?
A. ½ inch
B. 1 inch
C. 2 inches
D. 4 inches
Answer: C
A 2-inch seal prevents sewer gas entry while maintaining
drainage.
7. A wet vent serves:
A. One fixture only
B. Multiple fixtures’ drains and vents
C. Gas line
D. Roof drainage
Answer: B
Wet vents can serve multiple fixtures under code guidelines.
8. The slope for horizontal drainage piping is generally:
A. ⅛ in/ft
B. ¼ in/ft
C. ½ in/ft
D. Level
Answer: B
¼ inch per foot is typical for proper gravity flow.
9. What prevents sewer gas from entering a building?
A. Cleanout
B. Trap
C. Vent stack
D. Drain line
EXAM QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES Q $A
2026 INSTANTANT DOWNOAD PDF
Which code primarily governs plumbing installations in New York City?
A. International Plumbing Code
B. Uniform Plumbing Code
C. New York State Plumbing Code
D. NYC Construction Codes
Answer: D
NYC Construction Codes, including the NYC Plumbing Code, are adopted
and enforced by the NYC Department of Buildings.
1. Who is legally responsible for plumbing work performed under a
permit?
A. Apprentice
B. Journeyman
C. Property owner
D. Licensed Master Plumber
Answer: D
A Master Plumber assumes legal responsibility for all permitted
plumbing work.
2. When is a plumbing permit required?
A. Replacing a faucet
, B. Clearing a stoppage
C. Installing new piping
D. Adjusting a valve
Answer: C
New installations or alterations require permits.
3. Which NYC agency enforces plumbing regulations?
A. EPA
B. OSHA
C. DOB
D. DEP
Answer: C
The Department of Buildings enforces the plumbing code.
4. Minimum PPE when cutting cast iron pipe includes:
A. Gloves only
B. Safety glasses only
C. Gloves and safety glasses
D. Hard hat only
Answer: C
Eye and hand protection are mandatory.
5. Class B fire extinguishers are for:
A. Ordinary combustibles
B. Flammable liquids
C. Electrical fires
D. Combustible metals
Answer: B
Class B covers flammable liquids.
, 6. What is the minimum trap seal depth?
A. ½ inch
B. 1 inch
C. 2 inches
D. 4 inches
Answer: C
A 2-inch seal prevents sewer gas entry while maintaining
drainage.
7. A wet vent serves:
A. One fixture only
B. Multiple fixtures’ drains and vents
C. Gas line
D. Roof drainage
Answer: B
Wet vents can serve multiple fixtures under code guidelines.
8. The slope for horizontal drainage piping is generally:
A. ⅛ in/ft
B. ¼ in/ft
C. ½ in/ft
D. Level
Answer: B
¼ inch per foot is typical for proper gravity flow.
9. What prevents sewer gas from entering a building?
A. Cleanout
B. Trap
C. Vent stack
D. Drain line
