Ohio Volunteer Firefighter Practice Exam

Audible notification devices in fire alarms are specifically designed to alert individuals to the presence of a fire or other emergency through sound. Their primary function is to draw attention by emitting audible alarms, such as sirens or bells, which prompt occupants to evacuate the area or take other necessary actions for their safety.

In the context of the options presented, the function of serving as a Master Coded Alarm is integral to ensuring that alerts are not only heard but are also interpreted correctly. This means that these devices can relay specific alarm codes or signals to inform individuals of the nature and urgency of the emergency, thereby facilitating a coordinated response.

By contrast, recording incidents, providing emergency power, and indicating fire locations visually pertain to different aspects of fire safety and alarm systems. These functions do not directly relate to the primary role of audible notification devices, which focus on creating an immediate alert through sound.