Gas Heat ESCO Practice Exam

The proper name of the tool used to cut the threads of a steel pipe is:

1. Die

2. Fusion welder

3. Grinder

4. Torch

The correct answer is: Die

A die is a specialized tool used to cut or form threads on the external surface of a cylindrical object, such as a steel pipe. This process is known as threading. Option B, a fusion welder, is used to join two pieces of metal without the use of threads. Option C, a grinder, is used to smooth and shape objects, but not for threading. Option D, a torch, is used for cutting and welding, but not specifically for threading pipes.