During acceptance testing, which items are functionally tested?

• A. Visual inspections only
• B. Power supply checks only
• C. Detectors and actuators
• D. Alarms and interlocks

Answer: (C)

In acceptance testing, you’re proving that the system will actually respond and operate as designed when a fire condition is detected. The key part of that is the chain from sensing to action: detectors must recognize a condition, and actuators must execute the release mechanism to discharge the clean agent. Testing these components together demonstrates that the system can move from detection to deployment as intended.

Visual inspections only assess physical condition and installation quality; they don’t prove that the system will respond to an actual fire event. Power supply checks ensure power is available but don’t verify that detectors will trigger actuators and release the agent. Alarms and interlocks are important for signaling and safety, but the essential functional test focuses on the detectors and the actuators delivering the release.