In pipe cutting, the pipe diameter determines the tip size to be used.

In pipe cutting, the pipe diameter determines the tip size to be used.

• A. True
• B. False
• C. It determines only the feed rate
• D. It determines the heating rate

Answer: (B)

Tip size for pipe cutting is chosen to match how thick the metal is and the cutting process you’re using, not the pipe’s outside diameter. In plasma or oxy-fuel cutting, the nozzle/tip size and the cutting current are selected to provide the right heat input for penetrating the metal and achieving the desired cut quality, while factors like standoff and gas or plasma conditions also play a role. The pipe diameter mainly affects geometry, access around bends, and the torch’s stability, but it does not set which tip size to use. Feed rate and heating rate are governed by thickness and the machine settings, not by diameter. So the statement is not correct.

Tip size for pipe cutting is chosen to match how thick the metal is and the cutting process you’re using, not the pipe’s outside diameter. In plasma or oxy-fuel cutting, the nozzle/tip size and the cutting current are selected to provide the right heat input for penetrating the metal and achieving the desired cut quality, while factors like standoff and gas or plasma conditions also play a role. The pipe diameter mainly affects geometry, access around bends, and the torch’s stability, but it does not set which tip size to use. Feed rate and heating rate are governed by thickness and the machine settings, not by diameter. So the statement is not correct.