Which engineering control can be used to control radiant heat from a specific source and can be localized?

• A. A heated barrier that prevents air from escaping.
• B. Ventilation device that removes contaminants.
• C. Can be used to control radiant heat from a specific source and can be localized.
• D. A personal protective equipment item used to shield eyes.

Answer: (C)

Engineered controls that handle radiant heat focus on isolating or shielding the heat source so the energy doesn’t reach workers. The best choice describes placing a barrier or shield directly at the heat source to block radiant energy and protect people in a localized area. This is exactly how you reduce exposure to radiant heat: you keep the heat confined to the source and use a barrier to intercept the radiation before it reaches anyone nearby.

The other options don’t fit the goal. Using a barrier to keep air from escaping targets airflow, not radiant heat transfer. A ventilation device removes contaminants from the air, which again addresses airborne hazards rather than radiant heat. A PPE item that shields eyes protects the worker but does not reduce the heat exposure at the source, so it’s not an engineering control.