What is the purpose of limiting the span between lock wires when routing them?

• A. To prevent corrosion
• B. To allow easier inspection
• C. To prevent movement of components
• D. To shorten installation time

Answer: (C)

Lock wires keep fasteners from vibrating loose, so how far apart the wires span matters for how tightly the parts are held together. When the span between lock wires is kept short, the connection behaves like a tighter restraint, reducing the chance that the two components can move relative to one another under vibration and thermal cycling. A longer span acts like a larger lever, letting the parts flex more and increasing the risk that the fastener could back out or the wire could fatigue and fail. By limiting the span, you maintain a firm, secure lock that resists movement and keeps the assembly from loosening during operation. Corrosion, inspection ease, or installation time aren’t the primary reasons for this practice.