Under which circumstances can a breathing apparatus be deemed unfit for use?

• A. If it shows visible signs of wear
• B. If the inspection report indicates deficiencies
• C. Both A and B
• D. None of the above

Answer: (C)

A breathing apparatus must be deemed unfit for use under specific conditions that directly affect its functionality and safety. When it shows visible signs of wear, these defects can compromise the integrity of the apparatus, potentially leading to failure during critical use. Signs of wear may include frayed straps, damaged seals, or cracked components, all of which can hinder the device's ability to protect the user from harmful atmospheres.

Additionally, an inspection report that indicates deficiencies is another critical factor. Regular inspections are mandated to ensure that the equipment is in optimal operating condition. If deficiencies are noted, such as inadequate pressure levels, malfunctioning valves, or other critical issues, the breathing apparatus cannot be relied upon to function effectively.

Therefore, both conditions—visible signs of wear and deficiencies noted in an inspection report—are valid and serious reasons to classify a breathing apparatus as unfit. This comprehensive understanding of the equipment’s condition is essential to maintaining safety standards in mining operations, ensuring that workers have reliable protection from hazardous environments.