What type of evacuation signals are commonly used by flight attendants?

Flight attendants commonly use verbal commands, whistles, or other auditory signals as evacuation signals during emergencies. These auditory signals are critical because they can effectively grab passengers' attention in a chaotic environment where visual cues may be overlooked. Verbal commands provide clear instructions for procedures such as evacuating the aircraft or where to locate emergency exits. Additionally, whistles are often used since they can be heard over the noise of the environment, ensuring that passengers receive important information promptly.

Other options focus only on specific forms of cues. For example, relying solely on flashing lights or visual hand signals may not communicate urgent information effectively in situations where quick comprehension is necessary. While visual cues are beneficial, auditory signals enhance communication and aid in the quick and efficient guidance of passengers during an evacuation. Therefore, the combination of verbal and auditory signals is essential for ensuring safety and facilitating an orderly evacuation process.