Which of the following actions is most appropriate when you hear a high-pitched squeal or feedback?

• A. Increase the volume to try to drown it out.
• B. Stop speaking, check for loose connections or improper earphone-microphone placement, and re-seat components.
• C. Replace the microphone immediately without diagnostics.
• D. Ignore and continue speaking.

Answer: (B)

Hearing a high-pitched squeal or feedback means the system is creating a feedback loop, usually from a microphone picking up sound from the earphone or from loose or mispositioned connections. The best action is to stop speaking, check for loose connections or improper earphone-microphone placement, and reseat the components. This breaks the feedback path and restores proper operation by ensuring the mic and earphone are correctly connected and positioned.

Increasing the volume would typically worsen the feedback loop, so that option is counterproductive. Replacing the microphone without diagnosing the issue can miss the real cause and wastes time. Ignoring the squeal allows the problem to continue and may disrupt communication.