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Free California Indoor Heat Illness Practice Test Online

Official exam: Cal-OSHA Indoor Heat Illness Prevention

Take a free California Indoor Heat Illness practice test online: 10 questions, no sign-up, scored by topic. The full 55-question bank and the timed simulator are $14.99 for 30 days.

First published: September 2, 2026Bank updated: September 2, 2026Published by CertQuestUSA · review process
TL;DR

Cal-OSHA Indoor Heat Illness Prevention: a 55-question practice bank for the real OSHA Safety & Health standard, 1 full paper of 50 questions each with no repeats, every question written to the regulation it comes from.

Where these questions come from

Every question in this bank cites a source -- primarily dir.ca.gov (100%) of this exam's citations.

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Want the whole bank for Cal-OSHA Indoor Heat Illness Prevention? One payment of $14.99 gives you 30 days of full access to this exam. It does not renew. No account needed to buy, and there is a 7-day money-back guarantee.
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1
full paper
50
questions per paper
55
questions in the bank
What this exam covers
5 real sample questions
Under §3396(c), when drinking water is not continuously and readily accessible, how much water must the employer provide per employee per hour for the entire shift?
A. One pint
B. One gallon
C. One quart
D. One cup
Show answer and reasoning

Correct answer: C. One quart

  • A: A pint is half of the actual required quantity.
  • B: A gallon is four times the actual required quantity.
  • D: A cup is far less than the required quantity; cups are referenced elsewhere as a training talking point, not the (c) minimum.
Source: 8 CCR §3396(c) — one quart of water per hour; https://www.dir.ca.gov/title8/3396.html
Under §3396(d)(1), indoor cool-down area temperatures must be maintained below what threshold, unless doing so is infeasible?
A. 87°F
B. 75°F
C. 70°F
D. 82°F
Show answer and reasoning

Correct answer: D. 82°F

  • A: 87°F is the full-compliance trigger, not the cool-down area ceiling.
  • B: 75°F is not the threshold specified for cool-down areas.
  • C: 70°F is not the threshold specified for cool-down areas.
Source: 8 CCR §3396(d)(1) — cool-down area temperature ceiling; https://www.dir.ca.gov/title8/3396.html
Under 8 CCR §3396(a)(1), the indoor heat illness prevention regulation applies to indoor work areas where the temperature reaches or exceeds what threshold while employees are present?
A. 82°F
B. 75°F
C. 90°F
D. 95°F
Show answer and reasoning

Correct answer: A. 82°F

  • B: 75°F is below the actual scope trigger in §3396(a)(1).
  • C: 90°F is not the initial scope trigger; it is close to but not the actual number.
  • D: 95°F is used only in the brief-exposure exception range, not as the scope trigger.
Source: 8 CCR §3396(a)(1) — 82°F scope trigger; https://www.dir.ca.gov/title8/3396.html
Under §3396(a)(2), full compliance with the standard's control measures is required once the indoor temperature or heat index reaches or exceeds what threshold?
A. 82°F
B. 87°F
C. 80°F
D. 100°F
Show answer and reasoning

Correct answer: B. 87°F

  • A: 82°F is the lower scope-trigger threshold under (a)(1), not the full-compliance threshold.
  • C: 80°F is used in the heat wave definition, not the full-compliance trigger.
  • D: 100°F is not a threshold used anywhere in §3396.
Source: 8 CCR §3396(a)(2) — 87°F full-compliance trigger; https://www.dir.ca.gov/title8/3396.html
Under §3396(d)(2)(C), an employee taking a preventative cool-down rest shall not be required to return to work until symptoms of heat illness have abated, but in no event before what minimum time has elapsed, plus time needed to access the area?
A. Five minutes
B. One minute
C. Fifteen minutes
D. One hour
Show answer and reasoning

Correct answer: A. Five minutes

  • B: One minute is shorter than the specified minimum.
  • C: Fifteen minutes is not the minimum stated in (d)(2)(C); it is used in the brief-exposure exception under (a)(1)(C).
  • D: One hour is far longer than the specified minimum.
Source: 8 CCR §3396(d)(2)(C) — minimum cool-down rest duration; https://www.dir.ca.gov/title8/3396.html

Frequently asked questions

Where can I take a free California Indoor Heat Illness practice test online?
Right here. CertQuestUSA's free California Indoor Heat Illness practice test online is a 10-question diagnostic across the exam's domains, with no sign-up and no credit card, and shows your score by topic at the end. The full 55-question bank, with every answer explained and cited to the regulation it comes from, is $14.99 for a 30-day pass that never renews.
How many questions are on the CertQuestUSA Cal-OSHA Indoor Heat Illness Prevention practice test?
55 questions total, split into 1 full paper of 50 each with no repeats across papers.
What topics does the Cal-OSHA Indoor Heat Illness Prevention test cover?
1 domains, with the heaviest weight on CA Indoor Heat Illness Prevention (8 CCR §3396) (100%).
Where do CertQuestUSA's Cal-OSHA Indoor Heat Illness Prevention questions come from?
Primarily dir.ca.gov (100%) of this bank's citations -- computed directly from this exam's own question sources, not a generic description.
Is there a free diagnostic for Cal-OSHA Indoor Heat Illness Prevention?
Yes -- 10 real questions across the exam's domains, no sign-up required, with a domain-by-domain breakdown at the end.
Need the certificate itself, not just the practice?
This page is a practice test. Certified Training USA, our sister site, sells the California Heat Illness Prevention Training course with a certificate of completion.
See the course
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