Pipefitter NCCER Test Questions and
Answers | Latest Version | 2024/2025 |
Correct & Verified
What is the primary tool used to measure the size of a pipe?
A) Pipe bender
B) Pipe wrench
✔✔C) Pipe caliper
D) Pipe cutter
What type of pipe is commonly used for natural gas installations?
✔✔A) Steel pipe
B) Copper pipe
C) PVC pipe
D) Cast iron pipe
What is the purpose of a pipe fitting?
A) To clean the pipes
✔✔B) To connect, redirect, or terminate a section of piping
1
,C) To measure the pipe
D) To cut the pipe
Which type of joint is commonly used for copper piping?
A) Threaded joint
✔✔B) Soldered joint
C) Welded joint
D) Flanged joint
What is the ideal angle for cutting a pipe when preparing for a joint?
✔✔A) 90 degrees
B) 45 degrees
C) 60 degrees
D) 180 degrees
What material is often used for welding stainless steel pipes?
✔✔A) Tig welding rod
B) Copper wire
2
,C) Aluminum
D) Lead
Which tool is used for removing burrs from the inside and outside of a pipe?
A) Pipe wrench
✔✔B) Deburring tool
C) Pipe bender
D) Cutting torch
What is the function of a pipe hanger in a piping system?
A) To measure pipe length
✔✔B) To support and stabilize pipes
C) To tighten pipe joints
D) To insulate pipes
What is a common cause of pipe leaks in a welded pipe system?
A) Improper insulation
✔✔B) Poor weld quality
3
, C) Too much water pressure
D) Excessive pipe length
When would you use a pipe threader?
A) To bend a pipe
✔✔B) To cut threads onto the end of a pipe
C) To clean pipes
D) To weld pipes together
What is the main advantage of using PVC pipe for water systems?
✔✔A) It is lightweight and resistant to corrosion
B) It is more durable than steel
C) It can withstand high temperatures
D) It is easily welded
Which of the following is a key safety precaution when using a cutting torch?
A) Wear only gloves
B) Use a cutting torch without goggles for better visibility
4
Answers | Latest Version | 2024/2025 |
Correct & Verified
What is the primary tool used to measure the size of a pipe?
A) Pipe bender
B) Pipe wrench
✔✔C) Pipe caliper
D) Pipe cutter
What type of pipe is commonly used for natural gas installations?
✔✔A) Steel pipe
B) Copper pipe
C) PVC pipe
D) Cast iron pipe
What is the purpose of a pipe fitting?
A) To clean the pipes
✔✔B) To connect, redirect, or terminate a section of piping
1
,C) To measure the pipe
D) To cut the pipe
Which type of joint is commonly used for copper piping?
A) Threaded joint
✔✔B) Soldered joint
C) Welded joint
D) Flanged joint
What is the ideal angle for cutting a pipe when preparing for a joint?
✔✔A) 90 degrees
B) 45 degrees
C) 60 degrees
D) 180 degrees
What material is often used for welding stainless steel pipes?
✔✔A) Tig welding rod
B) Copper wire
2
,C) Aluminum
D) Lead
Which tool is used for removing burrs from the inside and outside of a pipe?
A) Pipe wrench
✔✔B) Deburring tool
C) Pipe bender
D) Cutting torch
What is the function of a pipe hanger in a piping system?
A) To measure pipe length
✔✔B) To support and stabilize pipes
C) To tighten pipe joints
D) To insulate pipes
What is a common cause of pipe leaks in a welded pipe system?
A) Improper insulation
✔✔B) Poor weld quality
3
, C) Too much water pressure
D) Excessive pipe length
When would you use a pipe threader?
A) To bend a pipe
✔✔B) To cut threads onto the end of a pipe
C) To clean pipes
D) To weld pipes together
What is the main advantage of using PVC pipe for water systems?
✔✔A) It is lightweight and resistant to corrosion
B) It is more durable than steel
C) It can withstand high temperatures
D) It is easily welded
Which of the following is a key safety precaution when using a cutting torch?
A) Wear only gloves
B) Use a cutting torch without goggles for better visibility
4
