You are designing an audible alarm notification system for an office environment with an ambient noise level of 55 dBA. What dBA level should the horn be set at?

Question

Quizplus · Accepted Answer

The alarm should be set at least 10 dBA above the ambient noise level to ensure it is clearly audible. Since the ambient noise level is 55 dBA, the alarm should be set at 65 dBA or higher, making 70 dBA the appropriate choice.

You Are Designing an Audible Alarm Notification System for an Office