What is the supervisory signal indicating an abnormal condition requiring immediate attention?

• A. Fire Alarm
• B. Control Signal
• C. System Fault
• D. Fire Pump Alarm

Answer: (D)

In fire pump systems, signals are categorized by how urgent the situation is and what it indicates. A supervisory signal is used to alert the operator that a component isn’t in its normal, ready state and needs attention to prevent a failure, but it isn’t a live fire event.

The pump control equipment uses a specific signal to communicate that something abnormal is affecting the pump’s readiness—its status or condition requires immediate action. That is represented by the Fire Pump Alarm. It directly tells the operator that the pump system has an abnormal condition that could compromise performance and needs prompt corrective steps so the pump will function when called.

Other options don’t fit as well. A Fire Alarm would signal an actual fire event, not just a pump condition. A Control Signal describes normal start/stop commands rather than an abnormal condition. A System Fault is a broader term and doesn’t pinpoint the pump’s abnormal readiness condition as clearly as the dedicated Fire Pump Alarm does.