Confined Space Full Mock Exam
Reviewed by Gary B. Xavier, HVACR Instructor & Author, EPA 608 Universal ·
Sit a complete timed exam under test-centre conditions. You see no answers until you submit, then you get a score report by section and a full review with explanations.
Exam Format · Practice Format
Before You Begin
OSHA sets no confined space exam length, time or pass score; employers and training providers set them. The 50 questions, 60 minutes and 70% here are unofficial practice settings drawn from 29 CFR 1910.146 text. Source: 29 CFR 1910.146 Permit-Required Confined Spaces.
- The timer starts when you begin and the exam submits itself when time runs out.
- Move freely with Previous, Next or the numbered navigator, and flag any question to come back to.
- No feedback is shown until you submit. Unanswered questions count as wrong.
- Nothing is sent anywhere; the exam runs entirely in your browser.
Exam Format · Practice Format
Before You Begin
OSHA sets no confined space exam length, time or pass score; employers and training providers set them. The 50 questions, 60 minutes and 70% here are unofficial practice settings drawn from 29 CFR 1910.146 text. Source: 29 CFR 1910.146 Permit-Required Confined Spaces.
- The timer starts when you begin and the exam submits itself when time runs out.
- Move freely with Previous, Next or the numbered navigator, and flag any question to come back to.
- No feedback is shown until you submit. Unanswered questions count as wrong.
- Nothing is sent anywhere; the exam runs entirely in your browser.
Practice Test
These are original questions written by the Trade Exam Hub editorial team from the cited official sources. They are not real exam questions, and no exam body endorses this site. Full Mock Exams.
What the Confined Space Mock Exam Covers
Each attempt draws 50 questions at random from a pool of 159. The pool covers these topics. Your score report breaks your result down the same way, so you can see which areas need more study.
| Topic | Questions in Pool | Share |
|---|---|---|
| Definitions | 36 | 23% |
| Entry Permits | 19 | 12% |
| Entrant, Attendant and Supervisor Duties | 19 | 12% |
| Rescue and Retrieval | 19 | 12% |
| Evaluation, Program and Training | 66 | 42% |
About 84% of the pool is recall and core-concept questions. The other 16% are harder applied questions, such as scenarios, calculations or details that are easy to confuse.
Editor's Note on the Confined Space Exam
Rescue in IDLH atmospheres ties into respirator standby rules, so review them too. Source: 29 CFR 1910.134 Respiratory Protection.
Confined Space Mock Exam Pacing Plan
You have 60 minutes for 50 questions, which is about 1.2 minutes per question. Use these checkpoints to stay on pace:
| Checkpoint | Be at or past question | Elapsed time |
|---|---|---|
| First quarter | 13 | 15 min |
| Halfway | 25 | 30 min |
| Three quarters | 38 | 45 min |
If you are behind, flag any question that is taking too long and move on. Leave a few minutes at the end to go back to your flagged questions. Unanswered questions count as wrong, so give an answer to every question before time runs out.
What Score Do You Need?
To pass, you need 35 of 50 correct (70%), so you can miss up to 15 questions. The official pass mark is not published in a form we can verify, so treat this as a practice target. We suggest scoring 10 points above the pass mark on two attempts in a row before you book the real exam, because the pool here is smaller than the official bank.
Sample Confined Space Mock Exam Questions
Here are three questions from the pool, with their answers and sources.
Q1. A confined space is large enough that an employee can bodily enter, has limited means of entry or exit, and:
- Is not designed for continuous employee occupancy (correct)
- Has no lighting
- Is below ground
- Contains toxic gas
Source text: “Is not designed for continuous employee occupancy…” Reference: 29 CFR §1910.146(b).
Q2. Before entry is authorized, the employer documents completion of required measures by:
- Preparing an entry permit (correct)
- A phone call
- A text message
- A handshake
Source text: “by preparing an entry permit…” Reference: 29 CFR §1910.146(e)(1).
Q3. Authorized entrants must know the hazards, including the mode, signs or symptoms, and:
- Consequences of the exposure (correct)
- Cost of the job
- History of the plant
- Owner's name
Source text: “consequences of the exposure…” Reference: 29 CFR §1910.146(h)(1).
How to Use Your Score Report
- Sort by topic. Start your next study session with any topic where you scored below 70%.
- Read the source. Each answer cites a section or quotes its source text. Read the surrounding passage, not just the answer line.
- Drill, then retest. Use the adaptive practice test on your weak topics. It gives you more of the kinds of questions you miss. Then take this mock again for a new random set.
- Return to the guide. The Confined Space guide covers exam fees, scheduling, retake rules and what to bring on test day.
Sources Behind These Questions
Questions in this pool cite these references: 29 CFR §1910.146(a); 29 CFR §1910.146(b); 29 CFR §1910.146(c)(1); 29 CFR §1910.146(c)(2); 29 CFR §1910.146(c)(3); 29 CFR §1910.146(c)(4). Each question shows its exact reference when you review your answers.
Frequently Asked Questions
How many questions are on the Confined Space mock exam?
This mock has 50 questions, drawn at random from a pool of 159, so each attempt is different. The count is a practice format, because the official length is not published or our bank covers only part of the exam.
How long do I get, and how fast should I work?
The timer is set to 60 minutes, or about 1.2 minutes per question. Aim to be past question 25 by minute 30.
What score do I need to pass the Confined Space mock?
70%, which is 35 of 50 correct. That is a practice target, not an official pass mark.
Are these real Confined Space exam questions?
No. They are original questions written from the official sources cited in each answer, and no exam body endorses them. Use them to find weak topics, then confirm the details in the source.
Is the Confined Space mock exam free?
Yes. There is no login and no sign-up, and the exam runs entirely in your browser. Nothing you enter is sent to us.