Referenced to OSHA 29 CFR 1910.146

Confined Space Practice Test

Reviewed by Gary B. Xavier, HVACR Instructor & Author, EPA 608 Universal ·

Free questions on OSHA permit-required confined space rules under 29 CFR 1910.146.

Last updated · 159 original questions in this pool · Trade Exam Hub Editorial Team

Adaptive Practice Test

15–20 Questions Drawn From 159

Every attempt is a new test: questions are drawn at random and the answer order is shuffled. Score 80% or more and your next test moves up a level; score under 50% and it eases back. Your level is saved only in this browser.

Your Level Foundation

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How This Practice Test Works

These are original questions written by our editorial team from the published OSHA. They are not real exam questions. Questions follow the eCFR text of 29 CFR 1910.146, not any provider exam.

What the Question Pool Covers

Every question cites the rule behind its answer. Counting those references shows where the pool puts its weight:

ReferenceQuestions
29 CFR §1910.146(b)36
29 CFR §1910.146(c)(5)(ii)9
29 CFR §1910.146(h)(5)3
29 CFR §1910.146(k)(2)(iv)3
29 CFR §1910.146(a)2
29 CFR §1910.146(c)(1)2
29 CFR §1910.146(c)(2)2
29 CFR §1910.146(d)(5)(iii)2
29 CFR §1910.146(d)(6)2
29 CFR §1910.146(d)(14)2
29 CFR §1910.146(e)(1)2
29 CFR §1910.146(e)(6)2
29 CFR §1910.146(i)(4)2
29 CFR §1910.146(i)(6)2
29 CFR §1910.146(k)(1)(i)2
29 CFR §1910.146(k)(2)(iii)2
29 CFR §1910.146(k)(3)(i)2
29 CFR §1910.146(k)(3)(ii)2
29 CFR §1910.146(c)(3)1
29 CFR §1910.146(c)(4)1
29 CFR §1910.146(c)(5)(i)1
29 CFR §1910.146(c)(6)1
29 CFR §1910.146(c)(7)1
29 CFR §1910.146(c)(7)(iv)1
29 CFR §1910.146(c)(7)(iii)1
29 CFR §1910.146(c)(8)(i)1
29 CFR §1910.146(c)(8)(v)1
29 CFR §1910.146(c)(9)(i)1
29 CFR §1910.146(c)(9)(iii)1
29 CFR §1910.146(d)(1)1
29 CFR §1910.146(d)(2)1
29 CFR §1910.146(d)(3)(iv)1
29 CFR §1910.146(d)(3)(v)1
29 CFR §1910.146(d)(4)1
29 CFR §1910.146(d)(4)(v)1
29 CFR §1910.146(d)(4)(vii)1
29 CFR §1910.146(d)(5)(i)1
29 CFR §1910.146(d)(5)(iv)1
29 CFR §1910.146(d)(5)(v)1
29 CFR §1910.146(d)(5)(vi)1
29 CFR §1910.146(d)(9)1
29 CFR §1910.146(d)(11)1
29 CFR §1910.146(d)(13)1
29 CFR §1910.146(e)(2)1
29 CFR §1910.146(e)(3)1
29 CFR §1910.146(e)(4)1
29 CFR §1910.146(e)(5)1
29 CFR §1910.146(f)(3)1
29 CFR §1910.146(f)(4)1
29 CFR §1910.146(f)(5)1
29 CFR §1910.146(f)(10)1
29 CFR §1910.146(f)(11)1
29 CFR §1910.146(f)(15)1
29 CFR §1910.146(f)(8)1
29 CFR §1910.146(f)(12)1
29 CFR §1910.146(f)(9)1
29 CFR §1910.146(g)(2)(i)1
29 CFR §1910.146(g)(2)(ii)1
29 CFR §1910.146(g)(2)(iv)1
29 CFR §1910.146(g)(3)1
29 CFR §1910.146(g)(4)1
29 CFR §1910.146(h)(1)1
29 CFR §1910.146(h)(4)1
29 CFR §1910.146(i)(2)1
29 CFR §1910.146(i)(3)1
29 CFR §1910.146(i)(7)1
29 CFR §1910.146(i)(8)1
29 CFR §1910.146(i)(9)1
29 CFR §1910.146(i)(10)1
29 CFR §1910.146(j)(2)1
29 CFR §1910.146(j)(4)1
29 CFR §1910.146(j)(5)1
29 CFR §1910.146(j)(6)1
29 CFR §1910.146(k)(1)(iii)1
29 CFR §1910.146(k)(1)(v)1
29 CFR §1910.146(k)(1)(iv)1
29 CFR §1910.146(k)(2)(i)1
29 CFR §1910.146(k)(2)(ii)1
29 CFR §1910.146(k)(3)1
29 CFR §1910.146(k)(4)1
29 CFR §1910.146(l)(1)1
29 CFR §1910.1461
29 CFR §1910.146(d)(5)1
29 CFR §1910.146(k)(1)1
29 CFR §1910.146(c)(8)(ii)1
29 CFR §1910.146(c)(8)(iii)1
29 CFR §1910.146(c)(8)(iv)1
29 CFR §1910.146(d)(3)(i)1
29 CFR §1910.146(d)(3)(iii)1
29 CFR §1910.146(d)(3)(vi)1
29 CFR §1910.146(d)(4)(ii)1
29 CFR §1910.146(d)(4)(iv)1
29 CFR §1910.146(d)(8)1
29 CFR §1910.146(d)(10)1
29 CFR §1910.146(d)(12)1
29 CFR §1910.146(g)(1)1
29 CFR §1910.146(f)(1)1
29 CFR §1910.146(f)(13)1

Sample Questions With Worked Answers

A few questions from the pool with the answer and explanation, so you can see the style before you start.

  1. Which OSHA standard covers permit-required confined spaces in general industry?

    Answer: 29 CFR 1910.146. Source text: “hazards of entry into permit-required confined spaces…”

    Reference: 29 CFR §1910.146(a)

  2. §1910.146 does NOT apply to:

    Answer: Agriculture, construction, or shipyard employment. Source text: “This section does not apply to agriculture, to construction, or to shipyard employment…”

    Reference: 29 CFR §1910.146(a)

  3. A confined space is large enough that an employee can bodily enter, has limited means of entry or exit, and:

    Answer: Is not designed for continuous employee occupancy. Source text: “Is not designed for continuous employee occupancy…”

    Reference: 29 CFR §1910.146(b)

  4. Which is an example OSHA gives of a space with limited means of entry?

    Answer: Silos. Source text: “tanks, vessels, silos, storage bins, hoppers, vaults, and pits…”

    Reference: 29 CFR §1910.146(b)

  5. An attendant is an individual stationed:

    Answer: Outside one or more permit spaces who monitors the authorized entrants. Source text: “Attendant means an individual stationed outside one or more permit spaces who monitors the authorized entrants…”

    Reference: 29 CFR §1910.146(b)

How Difficulty Is Spread Across the Pool

Each question is tagged Foundation, Intermediate or Advanced, and each new test favors questions close to your current level that you have not seen yet in this browser. This is how the 159 Confined Space questions divide:

LevelQuestionsShare of Pool
Foundation2415%
Intermediate10969%
Advanced2616%

Because unseen questions come first, repeated attempts work through the pool rather than repeating the same items. Note the reference on every miss and reread that section before your next attempt.

Study Before You Test

Sources