Which of the following is an example of physical hazards?

• A. Fire, noise, darkness
• B. Exposed wiring & rebar
• C. Damaged, leaking utilities
• D. Atmospheric contamination

Answer: (B)

Physical hazards are dangers in the work environment that can cause harm through direct contact or exposure to energy, moving parts, or sharp edges. Exposed wiring and rebar fit this best because touching live electrical components can cause electric shock or burns, and sharp, exposed rebar can cause punctures or cuts. The other options involve hazards that are less about direct physical contact with hazardous parts: fire and noise are separate hazard categories, darkness relates to visibility, damaged or leaking utilities can involve energy leaks or other types of hazards, and atmospheric contamination is a chemical exposure issue. Exposed wiring and rebar provide a clear, tangible example of a physical hazard.