WBGT is used to determine which of the following in heat stress management?

• A. Climate change policy
• B. Work-rest schedules, hydration needs, and protective measures
• C. Payroll and scheduling
• D. Employee training frequency

Answer: (B)

WBGT is a heat-stress index that combines humidity, air temperature, radiant heat, and air movement to estimate how hot it will feel and how the body will respond to heat. In heat-stress management, this index guides decisions about safety controls: it helps determine appropriate work-rest schedules, how much hydration workers need, and what protective measures or cooling strategies to implement. As WBGT rises, you’d typically shorten work periods, lengthen rest breaks, provide more frequent water or electrolyte intake, and add cooling supports such as shaded areas, fans, cooling vests, or PPE adjustments. It’s not used for unrelated items like climate-change policy, payroll, or training frequency.