What are three acceptable mediums for a fire alarm?

The correct choice identifies three acceptable mediums for a fire alarm: an audible siren, public address systems, and a direct voice. Each of these mediums has been proven to be effective in alerting individuals to the presence of a fire emergency.

An audible siren is a traditional and widely recognized means of communicating fire alerts. Its loud sound is designed to get immediate attention, helping ensure that anyone within a certain radius is aware of the situation and can respond appropriately.

Public address systems are beneficial in larger facilities where a comprehensive announcement can provide information about the urgency and specifics of the situation. This helps direct individuals to safety more effectively than a standard alarm may do.

Using a direct voice communication is ideal for relaying important information in real-time, such as evacuation procedures or instructions, making it a crucial addition to traditional alarms.

Together, these mediums meet the necessary criteria for effective communication during emergencies, ensuring that alerts are promptly received and understood by the individuals in their vicinity.