Which term describes a space with limited means of entry and exit not intended for human occupancy?

• A. Restricted workspace
• B. Confined workspace
• C. Confined space
• D. Hazardous chamber

Answer: (C)

A confined space is defined by having limited means of entry and exit and not being designed for continuous human occupancy. That combination means entry and rescue can be difficult, and there may be hazards like insufficient ventilation or hazardous atmospheres that aren’t obvious from the outside. In ammonia refrigeration work, this is especially important because such spaces can trap gas or become oxygen-deficient, so any entry requires proper precautions, gas testing, and ventilation. The other terms don’t capture both the restricted access and the intended lack of occupancy, so they don’t convey the same safety implications as accurately.