Which technique involves using hand and arm signals to maintain secrecy?

• A. Use hand and arm signals.
• B. Speak into a microphone.
• C. Exchange coded handwriting.
• D. Maintain constant radio chatter.

Answer: (A)

Silent, visual communication through hand and arm signals allows teammates to convey commands or alerts without emitting sound or radio data, keeping conversations covert. This immediate, line-of-sight method minimizes the chance of interception or detection, which is essential for secrecy. Speaking into a microphone would reveal messages to anyone nearby, and constant radio chatter creates detectable traffic. While coded handwriting can be covert, it’s slower and more prone to loss or interception. In fast, stealthy operations, hand and arm signals strike the right balance of quiet, reliable communication.