Pipefitter NCCER V4 Study Guide |
Latest Version | 2024/2025 | Correct &
Verified
What is the primary role of a pipefitter in construction?
✔✔The primary role of a pipefitter is to install, maintain, and repair piping systems used for the
transportation of liquids, gases, and other materials.
What is the function of a pipe wrench?
✔✔A pipe wrench is used to tighten or loosen pipes by gripping them tightly, especially in
plumbing and pipefitting tasks.
How do you determine the proper size of pipe to use for a specific project?
✔✔The proper size of pipe is determined based on the flow requirements, pressure ratings, and
the type of material being transported.
What is the purpose of using pipe insulation?
✔✔Pipe insulation is used to reduce heat loss or gain, prevent condensation, and protect the pipe
from damage due to temperature changes.
1
,What is a flanged connection, and where is it commonly used?
✔✔A flanged connection consists of two flanges bolted together to secure a pipe to another
component, commonly used in high-pressure systems.
What is the difference between a 45-degree and a 90-degree elbow in piping systems?
✔✔A 45-degree elbow changes the direction of a pipe by 45 degrees, while a 90-degree elbow
changes the direction by 90 degrees.
How do you calculate the required length of pipe for a given run?
✔✔The required length of pipe can be calculated by measuring the distance between the start
and end points, factoring in any bends or fittings.
What is a pipe hanger, and why is it necessary?
✔✔A pipe hanger is a support device that holds a pipe in place, preventing sagging and ensuring
proper alignment within a piping system.
What is the purpose of pressure testing in pipefitting?
✔✔Pressure testing is done to check the integrity of the piping system and to ensure there are no
leaks before the system is put into operation.
2
, What is the importance of pipe threading in pipefitting?
✔✔Pipe threading is used to create a screw-like connection on the ends of pipes, allowing them
to be joined together securely.
What is the role of a pipefitter when working with different materials such as steel, copper, and
plastic?
✔✔A pipefitter must understand the properties of different materials and use the appropriate
tools, techniques, and fittings to work with each type safely and effectively.
What is the purpose of using joint compounds in pipefitting?
✔✔Joint compounds are used to create a seal between pipe threads or connections, preventing
leaks and ensuring a tight fit.
How is a pipefitter involved in system maintenance?
✔✔A pipefitter is responsible for troubleshooting, repairing, and replacing pipes, fittings, and
valves to maintain the efficiency and safety of piping systems.
What is a union fitting, and when would it be used?
3
Latest Version | 2024/2025 | Correct &
Verified
What is the primary role of a pipefitter in construction?
✔✔The primary role of a pipefitter is to install, maintain, and repair piping systems used for the
transportation of liquids, gases, and other materials.
What is the function of a pipe wrench?
✔✔A pipe wrench is used to tighten or loosen pipes by gripping them tightly, especially in
plumbing and pipefitting tasks.
How do you determine the proper size of pipe to use for a specific project?
✔✔The proper size of pipe is determined based on the flow requirements, pressure ratings, and
the type of material being transported.
What is the purpose of using pipe insulation?
✔✔Pipe insulation is used to reduce heat loss or gain, prevent condensation, and protect the pipe
from damage due to temperature changes.
1
,What is a flanged connection, and where is it commonly used?
✔✔A flanged connection consists of two flanges bolted together to secure a pipe to another
component, commonly used in high-pressure systems.
What is the difference between a 45-degree and a 90-degree elbow in piping systems?
✔✔A 45-degree elbow changes the direction of a pipe by 45 degrees, while a 90-degree elbow
changes the direction by 90 degrees.
How do you calculate the required length of pipe for a given run?
✔✔The required length of pipe can be calculated by measuring the distance between the start
and end points, factoring in any bends or fittings.
What is a pipe hanger, and why is it necessary?
✔✔A pipe hanger is a support device that holds a pipe in place, preventing sagging and ensuring
proper alignment within a piping system.
What is the purpose of pressure testing in pipefitting?
✔✔Pressure testing is done to check the integrity of the piping system and to ensure there are no
leaks before the system is put into operation.
2
, What is the importance of pipe threading in pipefitting?
✔✔Pipe threading is used to create a screw-like connection on the ends of pipes, allowing them
to be joined together securely.
What is the role of a pipefitter when working with different materials such as steel, copper, and
plastic?
✔✔A pipefitter must understand the properties of different materials and use the appropriate
tools, techniques, and fittings to work with each type safely and effectively.
What is the purpose of using joint compounds in pipefitting?
✔✔Joint compounds are used to create a seal between pipe threads or connections, preventing
leaks and ensuring a tight fit.
How is a pipefitter involved in system maintenance?
✔✔A pipefitter is responsible for troubleshooting, repairing, and replacing pipes, fittings, and
valves to maintain the efficiency and safety of piping systems.
What is a union fitting, and when would it be used?
3
