Rhode Island Master Pipefitter Exam 2025 – 400 Free Practice Questions to Pass the Exam

The recommended procedure for installing a threaded pipe involves using a sealant or Teflon tape to prevent leaks. This practice is essential because threaded connections can be prone to leaks if not properly sealed. Teflon tape, when applied correctly, fills in the small gaps between the threads and creates a barrier against liquid or gas escaping from the joint.

Using a sealant or Teflon tape not only enhances the integrity of the connection but also ensures that the joint can withstand pressure and prevent any potential leaks that could arise during the operation of the piping system. This is crucial in maintaining safety and efficiency in plumbing and piping installations.

In contrast, relying solely on glue does not provide the necessary sealing properties for threaded connections, as glue may not grip well onto the threaded surfaces. Welding threads is generally not a feasible method since threaded joints are designed to be disassembled for maintenance or repair, while welding creates a permanent bond that cannot be easily undone. Leaving the threads unsealed is also not practical, as it invites leak risks that could compromise the entire system's performance. Therefore, using a sealant or Teflon tape ensures a secure and effective threaded pipe installation.