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Practice test · Confined Space

Confined Space Entry Practice Test

Twenty-five questions on permit-required confined spaces, with every answer traced to the paragraph it comes from: the three-part confined space test, the four characteristics that make a space permit-required, atmospheric limits and test order, the permit system, the duties of entrants, attendants and entry supervisors, and rescue. Where the construction rule in 29 CFR 1926 Subpart AA differs from the general industry rule in 1910.146, the question says so. Your employer's own training and permit space program remain required; this test only helps you review.

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

There is no official OSHA test. OSHA sets what the training must cover and requires the employer to establish employee proficiency in the duties assigned; it does not publish or grade an exam. This free practice test is not affiliated with OSHA or the Department of Labor, and nothing is issued for taking it.

No. No card, certificate, or credential is issued. Confined space entry duties are assigned by your employer after training that establishes your proficiency under 29 CFR 1910.146(g), and your employer keeps the training record.

Both. Most questions come from 29 CFR 1910.146, which applies to general industry. Construction is covered by 29 CFR 1926 Subpart AA, and the questions that turn on a difference between the two say which rule they are asking about.

Every explanation names the paragraph — for example 1910.146(c)(5)(ii)(C) for the order of atmospheric testing, or 1926.1203(a) for the competent person who identifies confined spaces on a construction site. Read the explanations even for the questions you get right; that is where the value is.

The difference between controlling a hazard and eliminating it. Forced air ventilation controls an atmospheric hazard; the note to 1910.146(c)(7) states it does not eliminate one. That single sentence separates the alternate procedures of (c)(5) from a genuine reclassification under (c)(7).

No. Entry requires the employer's written permit space program, a signed entry permit for that space, trained entrants, an attendant, an entry supervisor, atmospheric testing and arranged rescue services. A test result is not a substitute for any of that.

Sources & references

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

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