A space with limited entry and egress and not suitable for human inhabitants is called what?

• A. Constrained area
• B. Restricted workplace
• C. Confined space
• D. Non habitable area

Answer: (C)

A confined space is defined as a space with limited entry and egress that is not designed for continuous human occupancy. In ammonia refrigeration, such spaces can trap hazardous atmospheres or oxygen-deficient conditions, so entry requires careful procedures, atmospheric testing, ventilation, and a trained attendant. This matches the description given in the question, describing a space that is hard to enter or exit and not suitable for regular occupants. Other terms like constrained area, restricted workplace, or non habitable area aren’t the standard safety terms used to capture the specific occupancy and access limits that define a confined space.