2025 PIPEFITTER JOURNEYMAN LICENSURE EXAM
PRACTICE QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS)
RATIONALES 2026 Q&A
THIS EXAM CONTAINS:
❖PIPEFITTER JOURNEYMAN LICENSURE EXAM
❖PRACTICE QUESTIONS AND CORRECT ANSWERS
❖(VERIFIED ANSWERS) PLUS RATIONALES 2026
❖100% GUARANTEED PASS
❖COMPLETE A+ GUIDE
https://www.stuvia.com/en-us/user/MBoffin
,PIPEFITTER JOURNEYMAN LICENSURE EXAM PRACTICE QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A
1. Which of the following materials is most commonly used for
high- pressure steam piping?
a) PVC
b) Carbon steel
c) Copper
d) Aluminum
Rationale: Carbon steel is preferred for high-pressure steam
systems due to its strength and heat resistance.
2. What is the standard pipe schedule for a 2-inch nominal
diameter pipe used for steam service?
a) Schedule 10
b) Schedule 20
https://www.stuvia.com/en-us/user/MBoffin
, c) Schedule 40
d) Schedule 80
Rationale: Schedule 40 is commonly used for standard steam
service piping; higher pressures may require Schedule 80.
3. Which welding process is most often used for joining carbon
steel pipes in industrial applications?
a) MIG welding
b) TIG welding
c) SMAW (Stick welding)
d) Oxy-acetylene welding
Rationale: SMAW is widely used for carbon steel pipe welding
due to portability and adaptability in field conditions.
4. What is the purpose of a pipe hanger?
a) To insulate the pipe
b) To connect pipe sections
c) To support the pipe and maintain alignment
d) To measure pressure in the pipe
Rationale: Pipe hangers support piping systems and prevent
sagging or misalignment.
5. When threading a steel pipe, what is used to lubricate the dies?
a) Water
b) Solvent
c) Cutting oil
https://www.stuvia.com/en-us/user/MBoffin
, d) Grease
Rationale: Cutting oil reduces friction and prevents damage to
threads during threading.
6. What is the minimum clearance required between steam
pipes and combustible materials?
a) 1 inch
b) 2 inches
c) 18 inches
d) 24 inches
Rationale: Steam pipes must be installed with adequate
clearance to prevent fire hazards; 18 inches is standard in many
codes.
7. What type of joint is most commonly used for copper piping in
water service?
a) Welded joint
b) Threaded joint
c) Soldered (Sweat) joint
d) Flanged joint
Rationale: Copper water piping typically uses soldered joints for
secure, leak-free connections.
8. Which tool is used to measure the thickness of pipe walls?
a) Pipe wrench
b) Vernier caliper
c) Micrometer
https://www.stuvia.com/en-us/user/MBoffin
PRACTICE QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS)
RATIONALES 2026 Q&A
THIS EXAM CONTAINS:
❖PIPEFITTER JOURNEYMAN LICENSURE EXAM
❖PRACTICE QUESTIONS AND CORRECT ANSWERS
❖(VERIFIED ANSWERS) PLUS RATIONALES 2026
❖100% GUARANTEED PASS
❖COMPLETE A+ GUIDE
https://www.stuvia.com/en-us/user/MBoffin
,PIPEFITTER JOURNEYMAN LICENSURE EXAM PRACTICE QUESTIONS AND CORRECT ANSWERS
(VERIFIED ANSWERS) PLUS RATIONALES 2026 Q&A
1. Which of the following materials is most commonly used for
high- pressure steam piping?
a) PVC
b) Carbon steel
c) Copper
d) Aluminum
Rationale: Carbon steel is preferred for high-pressure steam
systems due to its strength and heat resistance.
2. What is the standard pipe schedule for a 2-inch nominal
diameter pipe used for steam service?
a) Schedule 10
b) Schedule 20
https://www.stuvia.com/en-us/user/MBoffin
, c) Schedule 40
d) Schedule 80
Rationale: Schedule 40 is commonly used for standard steam
service piping; higher pressures may require Schedule 80.
3. Which welding process is most often used for joining carbon
steel pipes in industrial applications?
a) MIG welding
b) TIG welding
c) SMAW (Stick welding)
d) Oxy-acetylene welding
Rationale: SMAW is widely used for carbon steel pipe welding
due to portability and adaptability in field conditions.
4. What is the purpose of a pipe hanger?
a) To insulate the pipe
b) To connect pipe sections
c) To support the pipe and maintain alignment
d) To measure pressure in the pipe
Rationale: Pipe hangers support piping systems and prevent
sagging or misalignment.
5. When threading a steel pipe, what is used to lubricate the dies?
a) Water
b) Solvent
c) Cutting oil
https://www.stuvia.com/en-us/user/MBoffin
, d) Grease
Rationale: Cutting oil reduces friction and prevents damage to
threads during threading.
6. What is the minimum clearance required between steam
pipes and combustible materials?
a) 1 inch
b) 2 inches
c) 18 inches
d) 24 inches
Rationale: Steam pipes must be installed with adequate
clearance to prevent fire hazards; 18 inches is standard in many
codes.
7. What type of joint is most commonly used for copper piping in
water service?
a) Welded joint
b) Threaded joint
c) Soldered (Sweat) joint
d) Flanged joint
Rationale: Copper water piping typically uses soldered joints for
secure, leak-free connections.
8. Which tool is used to measure the thickness of pipe walls?
a) Pipe wrench
b) Vernier caliper
c) Micrometer
https://www.stuvia.com/en-us/user/MBoffin
