What type of signal indicates an abnormal condition in a fire suppression system?

What type of signal indicates an abnormal condition in a fire suppression system?

• A. Alarm
• B. Supervisory Signal
• C. Trouble Signal
• D. Maintenance Signal

Answer: (B)

Signals in fire suppression systems are used to communicate the status of the system. When something is not in its normal operational state but not actively indicating a fire, a supervisory signal is used. This covers conditions like a control valve being closed, a valve position that could impede proper operation, or a water supply issue that needs attention to keep the system ready. It alerts personnel to take corrective action so the system can function correctly if needed. This is different from an alarm, which signals a fire event; or a trouble signal, which points to a fault or malfunction in the system; or a maintenance signal, which indicates ongoing maintenance is required. So the abnormal condition in a fire suppression system is indicated by a supervisory signal.

Signals in fire suppression systems are used to communicate the status of the system. When something is not in its normal operational state but not actively indicating a fire, a supervisory signal is used. This covers conditions like a control valve being closed, a valve position that could impede proper operation, or a water supply issue that needs attention to keep the system ready. It alerts personnel to take corrective action so the system can function correctly if needed. This is different from an alarm, which signals a fire event; or a trouble signal, which points to a fault or malfunction in the system; or a maintenance signal, which indicates ongoing maintenance is required. So the abnormal condition in a fire suppression system is indicated by a supervisory signal.