Who should perform the tests for explosive gases and oxygen deficiency when an abandoned mine or abandoned part is penetrated by auger drilling?

Who should perform the tests for explosive gases and oxygen deficiency when an abandoned mine or abandoned part is penetrated by auger drilling?

• A. A supervisor
• B. A competent person
• C. The drill operator
• D. Mine inspector

Answer: (B)

Testing for explosive gases and oxygen deficiency in an abandoned area opened by auger drilling must be done by a competent person. This role is filled by someone who is trained, experienced, and authorized to identify gas hazards and to take the necessary protective actions based on the readings. Before entry, the competent person uses calibrated detectors to check for methane and for enough oxygen, interprets what the results mean, and ensures that conditions are safe or that appropriate controls—such as ventilation or halting work—are put in place. The emphasis is on having someone on site who not only understands how to operate the testing gear but also has the authority to act on the findings to keep workers safe. Supervisors oversee safety programs but aren’t guaranteed to perform the tests or to interpret readings and implement actions; the drill operator might have practical exposure skills but may lack the required training or authority; a mine inspector operates in a regulatory role and is not the on-site person routinely performing these safety checks.

Testing for explosive gases and oxygen deficiency in an abandoned area opened by auger drilling must be done by a competent person. This role is filled by someone who is trained, experienced, and authorized to identify gas hazards and to take the necessary protective actions based on the readings. Before entry, the competent person uses calibrated detectors to check for methane and for enough oxygen, interprets what the results mean, and ensures that conditions are safe or that appropriate controls—such as ventilation or halting work—are put in place. The emphasis is on having someone on site who not only understands how to operate the testing gear but also has the authority to act on the findings to keep workers safe. Supervisors oversee safety programs but aren’t guaranteed to perform the tests or to interpret readings and implement actions; the drill operator might have practical exposure skills but may lack the required training or authority; a mine inspector operates in a regulatory role and is not the on-site person routinely performing these safety checks.