Which term describes a condition that indicates a fault needing maintenance, but is not an actual alarm or supervisory?

Which term describes a condition that indicates a fault needing maintenance, but is not an actual alarm or supervisory?

• A. trouble
• B. alarm
• C. supervisory
• D. code red

Answer: (A)

In signaling terminology, a trouble describes a fault or degraded condition that needs maintenance but does not represent an active emergency alarm or a supervisory action. It flags that something in the system isn’t working correctly—like a sensor fault, wiring issue, or low battery—that should be serviced to restore proper operation. An alarm, by contrast, signals an actual hazard requiring immediate response. Supervisory indicates a condition where a device must be used or set correctly to prevent a problem (for example, a valve not fully closed). Code red isn’t a standard category for these signals. So the term that fits a fault needing maintenance without being a real alarm or supervisory is trouble.

In signaling terminology, a trouble describes a fault or degraded condition that needs maintenance but does not represent an active emergency alarm or a supervisory action. It flags that something in the system isn’t working correctly—like a sensor fault, wiring issue, or low battery—that should be serviced to restore proper operation. An alarm, by contrast, signals an actual hazard requiring immediate response. Supervisory indicates a condition where a device must be used or set correctly to prevent a problem (for example, a valve not fully closed). Code red isn’t a standard category for these signals. So the term that fits a fault needing maintenance without being a real alarm or supervisory is trouble.