How should hazardous areas in a mine be marked?

• A. By creating open access
• B. By using cones and barriers
• C. Effectively barricaded and posted with warning signs
• D. Only with colored tape

Answer: (C)

Marking hazardous areas in a mine is critical for maintaining safety and ensuring that all personnel are aware of potential dangers. The most effective method is to have these areas effectively barricaded and posted with warning signs. This approach serves multiple purposes: it physically prevents access to the hazardous area and informs workers of the dangers present through clear signage.

Barricades help to create a physical barrier that can deter personnel from entering dangerous zones inadvertently, while warning signs provide important information regarding what hazards exist in the area, such as toxic gases, unstable grounds, or moving machinery. This multi-layered approach enhances safety by providing both a physical and informational deterrent.

Other options, such as creating open access or using colored tape, do not provide sufficient protection or information for safety. Open access would lead to increased risk of accidents, while colored tape alone does not physically prevent entry or adequately convey the nature of the hazards. Using cones and barriers, while better than open access, may not always provide the necessary level of clarity and security that comprehensive signage and proper barricading can achieve.