To make a socket joint, the ends of two pieces of tubing are joined using which component?

To make a socket joint, the ends of two pieces of tubing are joined using which component?

• A. Sleeve
• B. Clamp
• C. Coupling
• D. Fitting

Answer: (C)

A coupling is the connector designed to join two straight ends of tubing in a straight, inline joint. It provides a hollow interior (a socket) that the tube ends sit into or onto, creating a continuous bore and keeping the pieces aligned. This is why a coupling is the best choice for making a socket-style connection. A sleeve is more of a reinforcement or cover, a clamp merely holds pieces together without forming the joint, and a fitting is a broad term that can refer to many different shapes and functions, not specifically the straight-end joiner used here.

A coupling is the connector designed to join two straight ends of tubing in a straight, inline joint. It provides a hollow interior (a socket) that the tube ends sit into or onto, creating a continuous bore and keeping the pieces aligned. This is why a coupling is the best choice for making a socket-style connection. A sleeve is more of a reinforcement or cover, a clamp merely holds pieces together without forming the joint, and a fitting is a broad term that can refer to many different shapes and functions, not specifically the straight-end joiner used here.