What is the minimum duration that a commercial burglar siren must sound before it can automatically reset?

What is the minimum duration that a commercial burglar siren must sound before it can automatically reset?

• A. 5 minutes
• B. 10 minutes
• C. 15 minutes
• D. 30 minutes

Answer: (C)

The main idea is that a commercial burglar alarm’s audible alert should stay active for a minimum, defined period before the system can auto-reset. This guarantees the siren clearly signals a disturbance, gives occupants and responders time to react, and prevents a quick silence that could let a burglar slip away. In this context, the minimum duration is fifteen minutes. Why fifteen minutes fits best: it’s long enough to ensure the warning is heard and recognized, which enhances deterrence and allows for proper response, including central station notification or police dispatch if applicable. Shorter options, like five or ten minutes, would let the system reset too quickly and could reduce the chance that the alarm is taken seriously or detected by people nearby. A much longer duration, such as thirty minutes, would impose unnecessary disruption and may not be required by standard practice.

The main idea is that a commercial burglar alarm’s audible alert should stay active for a minimum, defined period before the system can auto-reset. This guarantees the siren clearly signals a disturbance, gives occupants and responders time to react, and prevents a quick silence that could let a burglar slip away. In this context, the minimum duration is fifteen minutes.

Why fifteen minutes fits best: it’s long enough to ensure the warning is heard and recognized, which enhances deterrence and allows for proper response, including central station notification or police dispatch if applicable. Shorter options, like five or ten minutes, would let the system reset too quickly and could reduce the chance that the alarm is taken seriously or detected by people nearby. A much longer duration, such as thirty minutes, would impose unnecessary disruption and may not be required by standard practice.