Which of the following is an Engineering Control?

• A. Housekeeping
• B. Ventilation
• C. Administrative Controls
• D. Personal Protective Equipment

Answer: (B)

Engineering controls are physical changes to the workplace that reduce exposure by altering the environment or equipment. Ventilation fits this idea because it actively moves air to dilute or remove contaminants, lowering the concentration in the work area for everyone without relying on individual actions.

Housekeeping is important for reducing hazards through good practices, but it doesn’t directly modify the environment to lower exposure like a ventilation system does. Administrative controls change how work is done—policies, training, scheduling—without changing the physical environment. Personal protective equipment is worn by workers and protects the individual, not the environment itself.