During travel, the Slide Gate Entrapment Zone occurs if the gap between a moving gate and fixed counter opposing edges or surfaces is less than how many inches?

• A. 12 inches
• B. 16 inches
• C. 20 inches
• D. 24 inches

Answer: (B)

The point being tested is how close the moving gate can get to fixed counter edges before a dangerous entrapment area forms. When the gap between the moving gate and the fixed opposing edges is smaller than 16 inches, there’s a real risk that a person or their clothing could be drawn into or crushed between the moving part and the stationary surface as the gate travels. The 16-inch threshold is used as the safety limit: below it, you’re in the entrapment zone and must have protective measures (guards, sensors, interlocks, or stop devices) to prevent injury. If the gap is 16 inches or more, the space is considered outside that entrapment zone, reducing the immediate risk, though general safety practices still apply.