Which of the following statements about confined spaces is NOT true?

Which of the following statements about confined spaces is NOT true?

• A. The space has a continuous supply of natural air.
• B. The space may contain hazardous atmospheres.
• C. The space may have restricted entry or exit.
• D. The space is always safe to enter without precautions.

Answer: (A)

The key idea is that confined spaces are areas that are large enough to work in but have limited ways in and out and are not meant for continuous occupancy. Because of that limited ventilation, you can’t rely on a steady supply of natural air; air exchange can be poor and hazardous atmospheres can build up, so forced ventilation or atmospheric testing is often required before and during any entry. This is why the statement about a continuous supply of natural air is not true. In contrast, confined spaces may indeed contain hazardous atmospheres and may have restricted entry or exit, which is why entry precautions and controls are essential.

The key idea is that confined spaces are areas that are large enough to work in but have limited ways in and out and are not meant for continuous occupancy. Because of that limited ventilation, you can’t rely on a steady supply of natural air; air exchange can be poor and hazardous atmospheres can build up, so forced ventilation or atmospheric testing is often required before and during any entry. This is why the statement about a continuous supply of natural air is not true. In contrast, confined spaces may indeed contain hazardous atmospheres and may have restricted entry or exit, which is why entry precautions and controls are essential.