Which statement is true about Vehicular Vertical Lift Gates under F2200?

• A. All openings must be designed to prevent a four-inch sphere from passing through.
• B. A horizontal gap to fixed object may be up to 6 inches.
• C. Framing members may be rough.
• D. Positive stops are optional.

Answer: (A)

The safety principle being tested is preventing entrapment by ensuring that openings and gaps cannot admit a standard object. For Vehicular Vertical Lift Gates under F2200, openings must be designed so that a four-inch diameter sphere cannot pass through. This 4-inch sphere rule directly guards against small hands or fingers getting caught in moving parts, making it the defining true statement.

Why the other options don’t fit: allowing a horizontal gap to a fixed object up to six inches would let a 4-inch sphere pass, defeating the entrapment-prevention purpose. Framing members being rough creates snag and injury hazards; safe design requires smooth, well-finished framing. Positive stops being optional would weaken the safety controls that keep the gate movement within safe limits.