Which statement best defines a confined space entry in mining?

Which statement best defines a confined space entry in mining?

• A. A space with limited means of egress or hazardous atmospheres; requires permit, testing, rescue plan, training.
• B. A large open area with abundant ventilation.
• C. A space used for general storage.
• D. A sealed container used for water only.

Answer: (A)

Confined space entry is defined by spaces that have restricted means of entry or exit and may contain hazardous atmospheres, so entering them requires formal controls: a permit-to-work, atmospheric testing, a rescue plan, and proper training. The correct statement matches all these elements, describing both the physical constraint (limited egress) or potential hazard (hazardous atmospheres) and the required controls (permit, testing, rescue plan, training). The other descriptions don’t fit because they describe spaces that aren’t inherently restricted or hazardous, or don’t specify the necessary controls for entry.

Confined space entry is defined by spaces that have restricted means of entry or exit and may contain hazardous atmospheres, so entering them requires formal controls: a permit-to-work, atmospheric testing, a rescue plan, and proper training. The correct statement matches all these elements, describing both the physical constraint (limited egress) or potential hazard (hazardous atmospheres) and the required controls (permit, testing, rescue plan, training).

The other descriptions don’t fit because they describe spaces that aren’t inherently restricted or hazardous, or don’t specify the necessary controls for entry.