Which of the following is an example of mechanical harm?

• A. Exposure to radiation
• B. Toxic chemical spill
• C. Falling debris
• D. Stress and anxiety

Answer: (C)

Mechanical harm refers to physical injuries caused by mechanical forces, which can involve impact, crushing, or other physical interactions with objects. Falling debris is a prime example of this type of harm, as it can lead to injuries due to the impact of the debris with a person or a structure.

Other options, while they may result in harm, belong to different categories. For instance, exposure to radiation falls under radiological hazards, a distinct type of risk associated with exposure to energy produced by radioactive substances. A toxic chemical spill pertains to the chemical hazards that can lead to health risks from inhalation, ingestion, or skin contact with harmful substances. Stress and anxiety are psychological conditions rather than mechanical injuries. Thus, falling debris is clearly aligned with the definition of mechanical harm.