FAA Powerplant Written Practice Test

Which of the following is true regarding emergency solder repairs of broken wires?

1. A permanent crimped splice connector is preferred to a solder repair

2. Only solder repairs are allowed

3. Splicing is never permitted

4. Solder repairs must be done without a sleeve

The correct answer is: A permanent crimped splice connector is preferred to a solder repair

The statement that a permanent crimped splice connector is preferred to a solder repair is accurate because crimped connections provide a mechanical bond that is generally stronger and more reliable than a soldered joint, especially in applications subjected to vibration or movement. Crimped connections maintain a consistent and stable electrical connection and are less prone to failure over time compared to soldering, which can degrade or become brittle, particularly in high-vibration environments like those found in aircraft. Additionally, crimped terminals can be easily inspected and replaced if necessary, offering a cleaner, more efficient means of ensuring electrical integrity. In contrast, the other options suggest methods or practices that do not align with standard repair procedures. Solder repairs alone, without the use of other methods like crimping, do not adequately address the durability and reliability needed for wiring in aviation applications. Furthermore, prohibiting splicing entirely does not reflect the practical considerations involved in repair work, and performing solder repairs without a sleeve can lead to exposure of the connection, increasing the risk of corrosion and electrical failure.