FAA Powerplant Written Practice Test

Disable ads (and more) with a membership for a one time $4.99 payment

Prepare for the FAA Powerplant Written Test. Study with flashcards and multiple choice questions, each featuring hints and explanations. Ace your exam with confidence!

Practice this question and more.

What is the recommended maximum number of wires in an aircraft wire bundle?

50 wires
100 wires
75 wires
150 wires

The correct answer is: 75 wires

The recommended maximum number of wires in an aircraft wire bundle is based on safety, maintainability, and ease of troubleshooting. Limiting the number of wires in a single bundle helps prevent overheating due to excessive current and reduces the risk of electromagnetic interference, which can affect the performance of the aircraft's electronic systems. A maximum of 75 wires in a bundle strikes a balance between keeping the assembly manageable and minimizing potential complications that arise from larger bundles. Larger bundles could lead to difficulty in wiring checks, increased weight, and challenges in repairs or modifications. Following this guideline promotes better organization and maintenance practices while ensuring compliance with safety standards in aviation wiring.