Which controls include modifications to plants, equipment, ventilation systems, and processes that aim to reduce sources of exposure to potential hazards?

Which controls include modifications to plants, equipment, ventilation systems, and processes that aim to reduce sources of exposure to potential hazards?

• A. Engineering Controls
• B. Administrative Controls
• C. Personal Protective Equipment
• D. Welding Controls

Answer: (A)

Engineering controls focus on removing or reducing hazards at the source by modifying the workplace itself—equipment, ventilation, and processes—so exposure is minimized before a worker is exposed. The question is asking which type of controls involve making those kinds of changes to reduce sources of exposure to potential hazards. In welding, this means actions like installing local exhaust ventilation to capture fumes where they’re generated, enclosing the work area, and updating equipment or processes to generate fewer fumes or contaminants. These measures change the environment to prevent exposure rather than relying on workers to act differently or to wear protection. Administrative controls deal with how work is performed—procedures, training, scheduling—while personal protective equipment protects the worker after exposure, and “Welding Controls” isn’t a standard category in the control hierarchy. So the correct concept is engineering controls.

Engineering controls focus on removing or reducing hazards at the source by modifying the workplace itself—equipment, ventilation, and processes—so exposure is minimized before a worker is exposed. The question is asking which type of controls involve making those kinds of changes to reduce sources of exposure to potential hazards. In welding, this means actions like installing local exhaust ventilation to capture fumes where they’re generated, enclosing the work area, and updating equipment or processes to generate fewer fumes or contaminants. These measures change the environment to prevent exposure rather than relying on workers to act differently or to wear protection. Administrative controls deal with how work is performed—procedures, training, scheduling—while personal protective equipment protects the worker after exposure, and “Welding Controls” isn’t a standard category in the control hierarchy. So the correct concept is engineering controls.