A guardrail system is a barrier erected to prevent employees from falling to lower levels. This statement is:

• A. Lifeline
• B. Guardrail
• C. Fall arrest system
• D. Lanyard

Answer: (B)

This focuses on identifying a passive barrier that prevents falls by blocking access to a fall hazard. A guardrail is exactly that—a fixed barrier installed at edges or openings to stop employees from reaching a drop-off. It works without requiring any action from the worker or equipment being attached. In contrast, a lifeline or a lanyard is part of fall protection that involves equipment a worker uses to prevent or arrest a fall, and a fall arrest system is designed to stop a fall after it has started. So the statement describes a guardrail, the physical barrier that prevents falls.