Defined as a space not designed for continuous occupancy, limited or restricted means of entry and exit

Defined as a space not designed for continuous occupancy, limited or restricted means of entry and exit

• A. Confined Spaces
• B. General/Dilution Ventilation
• C. Local Exhaust Ventilation (LEV)
• D. Measuring Velocity

Answer: (A)

Confined spaces are spaces not designed for continuous occupancy and have limited or restricted means of entry and exit. That combination creates hazards such as restricted movement, potential for hazardous atmospheres, and difficulties in rescue or emergency isolation, which is why they require careful control measures, atmospheric testing, and often a permit for entry. The other options describe ventilation or measurement concepts rather than a space classification: general/dilution ventilation refers to supplying air to dilute contaminants, not to the nature of the space or entry limitations; local exhaust ventilation captures contaminants at the source, again focusing on air removal rather than whether a space is meant for occupancy; measuring velocity is about assessing airflow speed, not defining a space as confined.

Confined spaces are spaces not designed for continuous occupancy and have limited or restricted means of entry and exit. That combination creates hazards such as restricted movement, potential for hazardous atmospheres, and difficulties in rescue or emergency isolation, which is why they require careful control measures, atmospheric testing, and often a permit for entry.

The other options describe ventilation or measurement concepts rather than a space classification: general/dilution ventilation refers to supplying air to dilute contaminants, not to the nature of the space or entry limitations; local exhaust ventilation captures contaminants at the source, again focusing on air removal rather than whether a space is meant for occupancy; measuring velocity is about assessing airflow speed, not defining a space as confined.