When cutting tubing, it is important to produce a ________ end that is free of ________.

• A. cord, bends
• B. jagged, sharp edges
• C. square, burrs
• D. rounded, kinks

Answer: (C)

Producing a square end that is free of burrs is essential when cutting tubing for several reasons.

A square end ensures that the tubing fits properly into fittings, maintaining a strong and leak-free connection. If the end of the tube is not square, it can lead to improper seating in the fitting, which could create gaps and ultimately lead to leaks.

In addition, burrs, which are small, sharp projections left on the edge of the cut, can cause several issues. They can damage seals or O-rings during assembly, lead to reduced flow through the tubing, and even cause injuries during handling. Removing burrs to achieve a clean finish on the cut end ensures the integrity of the tubing system and promotes safety in the workplace.

The other options do not effectively highlight the importance of the cut end in maintaining connection integrity or safety. For instance, a jagged end introduces complications in fitting and increases the likelihood of damage, while a rounded end does not provide the flat surface necessary for a secure connection. Thus, a square end free of burrs is the optimal choice for effective and safe tubing connections.