Which type of clamps should never be used for metal hydraulic, fuel, or oil lines?

• A. Plastic clamps
• B. Bonded clamps
• C. Spring clamps
• D. Wing clamps

Answer: (B)

Bonded clamps are designed to provide a secure attachment while allowing for some movement and flexibility, which is important in various applications. However, when it comes to metal hydraulic, fuel, or oil lines, their usage is not advisable due to certain factors.

The primary concern with using bonded clamps for these types of lines is that they can potentially damage the metal tubing over time. Bonded clamps might not provide the necessary strength to withstand the pressure and vibrations commonly found in hydraulic systems. This could lead to wear or failure of the lines, which can result in leaks or system malfunctions.

In contrast, other types of clamps, such as plastic clamps, spring clamps, and wing clamps, are generally more suitable for securing metal lines, as they are designed to hold tubing without causing significant damage or stress. Proper selection of clamps is crucial in maintaining the integrity and safety of hydraulic, fuel, or oil systems.