When can a person interfere, adjust or change a ventilation device?

• A. Only when authorized by the underground mine manager or ventilation officer and notification given to the person appointed under section 60(8) or (9) of the Act for the part likely to be affected by the interference.
• B. Any time the device is malfunctioning.
• C. Only during shift change.
• D. Never.

Answer: (A)

Interfering with a ventilation device is tightly controlled to keep airflow predictable and prevent dangerous gas build-up or dust exposure. Only someone with explicit authority may do it: the underground mine manager or the ventilation officer. And you must notify the person appointed under section 60(8) or (9) for the part likely to be affected, so the overall ventilation plan can remain coordinated and safe. This ensures changes are considered in the broader ventilation scheme and that monitoring and records reflect what was done.

If a device malfunctions, there’s a proper process for reporting and arranging repairs rather than ad hoc interference. Interfering during a shift change isn’t a blanket permission; it still requires authorization. And there are legitimate cases for authorized intervention, so “never” isn’t correct.