When should a reverse-on-encounter safety feature activate?

• A. The feature stops and reverses gate movement when an obstacle is detected in the path; should activate upon sensor detection to prevent injury
• B. Speeds up gate movement
• C. Illuminates a warning light
• D. Unlocks the gate manually

Answer: (D)

The key idea is that a reverse-on-encounter safety feature is meant to respond automatically when something blocks the gate’s path. When the system detects an obstacle, it should immediately stop the gate and reverse its movement to prevent injury or damage. This automatic response is what keeps people and pets, vehicles, and nearby objects safe as the gate operates.

So the best behavior is automatic reversal on detecting an obstacle, not speeding up, just lighting a warning, or requiring manual intervention to unlock. The automatic stop-and-reverse action is what actually prevents harm and aligns with safe gate operation.