What is the function of a safety whistle in emergencies?

The function of a safety whistle in emergencies is to alert others to a dangerous situation or to call for help. This tool serves as an effective auditory signal that can travel over distances and can be heard in noisy environments, making it essential for attracting attention in critical situations. By using a whistle, individuals can quickly communicate their need for assistance or indicate that there is a potential hazard, prompting an immediate response from others nearby. This ability to signal urgency is crucial in emergency scenarios where verbal communication may be hindered by noise, distance, or panic.

Other options present different functions that do not align with the primary purpose of a safety whistle during emergencies. For example, signaling the end of a work shift, reminding employees to take breaks, or guiding employees in safety drills do not pertain to urgent situations where immediate response and awareness are required. Therefore, the correct answer emphasizes the critical role of a safety whistle in enhancing safety through effective communication during emergencies.