Define a confined space.

Define a confined space.

• A. An area not intended for continuous occupancy, with limited entry and exit, large enough for a person to enter and work.
• B. A space that is always occupied with many exits.
• C. An open area with unrestricted entry.
• D. A place with no hazards.

Answer: (A)

A confined space is an area not designed for continuous occupancy that has limited entry or exit, but is large enough for a person to enter and perform work. This combination matters because limited access makes it harder to get in and out quickly and to respond to problems, while the space still being big enough to enter means workers can be inside and need specific safety controls. Common examples include storage tanks, process vessels, silos, pits, and sewers. Even if the space doesn’t look dangerous, confined spaces can have hazardous atmospheres, engulfment risks, or other hazards, so entry often requires testing, ventilation, and permit-based safety procedures. The other descriptions don’t fit because they describe spaces that are always occupied or have many exits, open areas with unrestricted entry, or places assumed to have no hazards, none of which align with what makes a space confined.

A confined space is an area not designed for continuous occupancy that has limited entry or exit, but is large enough for a person to enter and perform work. This combination matters because limited access makes it harder to get in and out quickly and to respond to problems, while the space still being big enough to enter means workers can be inside and need specific safety controls. Common examples include storage tanks, process vessels, silos, pits, and sewers. Even if the space doesn’t look dangerous, confined spaces can have hazardous atmospheres, engulfment risks, or other hazards, so entry often requires testing, ventilation, and permit-based safety procedures. The other descriptions don’t fit because they describe spaces that are always occupied or have many exits, open areas with unrestricted entry, or places assumed to have no hazards, none of which align with what makes a space confined.