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

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.

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.