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Practice test · Heat & Cold Stress

Heat Illness Prevention Practice Test

Twenty-five questions on preventing heat injury and illness at work, with every answer traced to the OSHA or NIOSH document it comes from — the first-week risk and the acclimatization schedules, how much water is enough and how much is too much, the difference between heat cramps, heat exhaustion and heat stroke, what the heat index does and does not describe, how WBGT is measured, and what federal law requires today versus what OSHA has only proposed. Questions that touch the proposed heat rule say so in the stem, because there is no final federal heat standard. This is a review tool, not the heat training your employer owes you.

25 questions about 20 min

Not OSHA-authorized training. SteelToeTools is not affiliated with, endorsed by, or authorized by OSHA or the U.S. Department of Labor. This free educational content does not satisfy any OSHA or other regulatory training requirement, and no card, certificate, or credential is issued. Only OSHA-authorized trainers can deliver OSHA Outreach Training (10-Hour and 30-Hour) and issue DOL cards. Always follow your employer's training program and applicable federal, state, and local requirements.

Frequently asked questions

No. There is no federal OSHA heat test, and no card is issued for passing anything here. This is a free study aid you can use before or after the heat training your employer provides.

Not as of the date on this page. OSHA published a proposed Heat Injury and Illness Prevention rule on August 30, 2024; the informal hearing closed July 2, 2025 and post-hearing comments closed October 30, 2025. Until a final rule is issued, heat hazards are cited under the General Duty Clause, Section 5(a)(1) of the OSH Act. Some State Plans have their own heat rules: OSHA's heat standards page lists California, Colorado, Minnesota, Oregon and Washington, and other states have adopted rules more recently.

Because those answers come from OSHA's proposed heat rule, which is not law. The stem tells you when a question is about the proposal so that you never confuse it with a current requirement.

Work/rest cycles in minutes per hour come from ACGIH threshold limit value documentation, which OSHA's own Technical Manual describes as copyrighted and not publicly available. The WBGT limits by workload and the clothing adjustment factors that OSHA does publish, adapted from NIOSH guidelines (2016), are covered in the course.

No. This test checks your knowledge, not your employer's program. Compliance is judged on the written plan, the controls actually in place, the training given and the records kept.

Sources & references

Content checked against these sources — last reviewed August 28, 2026.

By — Editorial team of SteelToeTools.com (published by LSEA SAS) Updated