Pipe Fitters Test Questions and Answers
| Latest Version | 2024/2025 | Correct &
Verified
What is used to clean a pipe before welding?
✔✔ A grinder, wire brush, or chemical cleaner.
What is the purpose of a pipe saddle?
✔✔ To support and distribute the weight of the pipe over a larger area.
What is the primary use of a pipe wrench?
✔✔ To grip and turn pipes.
How are threaded pipe joints sealed?
✔✔ With Teflon tape or thread sealant.
What does "pipe OD" stand for?
✔✔ Outside Diameter.
1
,What does a pipe fitter use to bevel a pipe end?
✔✔ A grinder or beveling machine.
What is a pipe cap used for?
✔✔ To seal the end of a pipe.
What is the difference between seamless and welded pipes?
✔✔ Seamless pipes have no weld seam, while welded pipes are made by joining edges.
What is a spool drawing in pipe fitting?
✔✔ A detailed diagram showing the components of a pipe section.
What is a gate valve used for?
✔✔ To start or stop the flow of fluid.
What is the function of a strainer in a pipeline?
✔✔ To filter debris from the flow.
2
,How is pipe diameter marked for cutting?
✔✔ Using a wrap-around or pipe template.
What tool is used to align a pipe flange?
✔✔ A flange alignment tool.
How are pipes joined in a high-pressure system?
✔✔ By welding or using flanged connections.
What is the purpose of a pipe jack stand?
✔✔ To support and stabilize pipes during installation.
How is pipe flow rate measured?
✔✔ With a flow meter.
What is the difference between a concentric and eccentric reducer?
✔✔ A concentric reducer aligns the centerlines, while an eccentric reducer offsets them.
3
, What tool is used to ensure pipe cuts are straight?
✔✔ A pipe wrap or cutting guide.
What is a pipe hanger rod?
✔✔ A threaded rod used to suspend pipes.
What is the purpose of a bleed valve in a piping system?
✔✔ To release trapped air or fluid.
What is a vent line in piping?
✔✔ A line used to release gas or air from the system.
How is a pipe gasket selected?
✔✔ Based on pressure, temperature, and the fluid being handled.
What does a pipe fitter use to bend small-diameter pipes?
✔✔ A manual pipe bender.
4
| Latest Version | 2024/2025 | Correct &
Verified
What is used to clean a pipe before welding?
✔✔ A grinder, wire brush, or chemical cleaner.
What is the purpose of a pipe saddle?
✔✔ To support and distribute the weight of the pipe over a larger area.
What is the primary use of a pipe wrench?
✔✔ To grip and turn pipes.
How are threaded pipe joints sealed?
✔✔ With Teflon tape or thread sealant.
What does "pipe OD" stand for?
✔✔ Outside Diameter.
1
,What does a pipe fitter use to bevel a pipe end?
✔✔ A grinder or beveling machine.
What is a pipe cap used for?
✔✔ To seal the end of a pipe.
What is the difference between seamless and welded pipes?
✔✔ Seamless pipes have no weld seam, while welded pipes are made by joining edges.
What is a spool drawing in pipe fitting?
✔✔ A detailed diagram showing the components of a pipe section.
What is a gate valve used for?
✔✔ To start or stop the flow of fluid.
What is the function of a strainer in a pipeline?
✔✔ To filter debris from the flow.
2
,How is pipe diameter marked for cutting?
✔✔ Using a wrap-around or pipe template.
What tool is used to align a pipe flange?
✔✔ A flange alignment tool.
How are pipes joined in a high-pressure system?
✔✔ By welding or using flanged connections.
What is the purpose of a pipe jack stand?
✔✔ To support and stabilize pipes during installation.
How is pipe flow rate measured?
✔✔ With a flow meter.
What is the difference between a concentric and eccentric reducer?
✔✔ A concentric reducer aligns the centerlines, while an eccentric reducer offsets them.
3
, What tool is used to ensure pipe cuts are straight?
✔✔ A pipe wrap or cutting guide.
What is a pipe hanger rod?
✔✔ A threaded rod used to suspend pipes.
What is the purpose of a bleed valve in a piping system?
✔✔ To release trapped air or fluid.
What is a vent line in piping?
✔✔ A line used to release gas or air from the system.
How is a pipe gasket selected?
✔✔ Based on pressure, temperature, and the fluid being handled.
What does a pipe fitter use to bend small-diameter pipes?
✔✔ A manual pipe bender.
4
