Which of the following is NOT an Engineering Control for Cold Stress?

• A. General/spot warming
• B. Reducing conductive heat transfer
• C. Providing temporary shelter
• D. Increasing solar radiation

Answer: (D)

Engineering controls for cold stress are designed to reduce exposure by changing the environment or adding heat in a reliable, controllable way. General or spot warming directly adds heat where people are, or to the space, helping maintain a safer temperature. Reducing conductive heat transfer comes from insulation, barriers, or sealing gaps to slow heat loss from the body to the surroundings. Providing temporary shelter creates a warmer, wind-protected area, cutting down on exposure time and chilly air flow. Increasing solar radiation, on the other hand, depends on sun availability and weather and isn’t a reliable, controllable engineering solution in most work situations, so it isn’t considered an engineering control for cold stress.