Emergency voice/alarm communications systems utilize which of the following?

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Multiple Choice

Emergency voice/alarm communications systems utilize which of the following?

Explanation:
When people need to hear clear spoken instructions during an emergency, the system must have a way to distribute voice messages to everyone in the space. Loudspeakers provide that wide-area audio output, letting operators broadcast evacuation directions, status updates, and safety instructions across the building or campus. Sirens and visual alarms alert attention or indicate that there’s an incident, but they don’t convey spoken guidance. Microphones are input devices used to speak, but they don’t themselves deliver the message to occupants. So loudspeakers are the essential component for emergency voice/alarm communications.

When people need to hear clear spoken instructions during an emergency, the system must have a way to distribute voice messages to everyone in the space. Loudspeakers provide that wide-area audio output, letting operators broadcast evacuation directions, status updates, and safety instructions across the building or campus. Sirens and visual alarms alert attention or indicate that there’s an incident, but they don’t convey spoken guidance. Microphones are input devices used to speak, but they don’t themselves deliver the message to occupants. So loudspeakers are the essential component for emergency voice/alarm communications.

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