Nate Core Practice Test

Which tool should be used to cut capillary tubing?

1. Coping saw

2. Triangle file

3. Pipe cutter

4. Utility knife

The correct answer is: Triangle file

To effectively cut capillary tubing, a triangle file is the most suitable tool. This is due to the precision and control it offers, allowing for a clean, straight cut without bending or crimping the tubing. The triangular shape of the file enables it to create a notch around the tubing, which makes it easier to break off the section cleanly. In contrast, using a coping saw may lead to rough edges and is not designed for such delicate work. A pipe cutter, while effective for certain pipe types, can crush or deform capillary tubing due to its gripping mechanism that applies pressure when cutting. A utility knife might provide a quick cut but lacks the finesse necessary for ensuring that the tubing remnants do not impede flow or create leaks in a system. Therefore, the triangle file is designed for tasks that require precision, making it the optimal choice for cutting capillary tubing effectively.