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Safety & Trades Practice Questions

OSHA 30 Practice Test Practice Questions

OSHA 30-Hour Outreach Training (General Industry / Construction) — Free OSHA 30 practice questions with detailed explanations. Covers fall protection, electrical safety, scaffolding, stairways and ladders, hazard communication, and PPE for both General Industry and Construction tracks.

100
Total Questions
No strict limit; course is 30 hours total
Time Limit
70% on each module
Passing Score
$150-$200 (online authorized providers)
Registration Fee

Free Sample Questions

Here are 5 free sample questions from our full bank of 380+ OSHA 30 Practice Test practice questions. Try them out below — click "Show Answer" to reveal the correct response and explanation.

1

On a construction site, at what height does OSHA generally require fall protection for workers on a walking-working surface with an unprotected edge?

AA) 4 feet
BB) 10 feet
CC) 6 feet
DD) 15 feet
2

Before performing maintenance on energized equipment, which procedure must an authorized employee follow to prevent unexpected startup?

AA) Lockout/Tagout (LOTO) per 29 CFR 1910.147
BB) Issue a verbal warning to nearby coworkers
CC) Post a single warning sign on the panel
DD) Wait until the end of the shift to service the machine
3

Supported scaffolds must be capable of supporting their own weight and at least how many times the maximum intended load?

AA) 1 times
BB) 2 times
CC) 3 times
DD) 4 times
4

Under OSHA's Hazard Communication Standard (HazCom) aligned with GHS, how many standardized sections must a Safety Data Sheet (SDS) contain?

AA) 8
BB) 16
CC) 12
DD) 24
5

According to OSHA's hierarchy of controls, PPE should be used as which line of defense against workplace hazards?

AA) The last line of defense, after elimination, substitution, engineering, and administrative controls
BB) The first line of defense in every situation
CC) A complete substitute for engineering controls
DD) Only when a worker personally requests it

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About the OSHA 30 Practice Test

Format & Structure

Total Questions
100
Time Limit
No strict limit; course is 30 hours total
Format
Multiple choice, online modules

Scoring & Cost

Passing Score
70% on each module
Registration Fee
$150-$200 (online authorized providers)

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Frequently Asked Questions

What's the difference between OSHA 10 and OSHA 30?

OSHA 10 is a 10-hour entry-level course aimed at workers who need a basic understanding of jobsite hazards and their rights. OSHA 30 is a 30-hour course built for supervisors, foremen, safety coordinators, and anyone with safety responsibility on the site. The 30-hour version digs deeper into hazard recognition, OSHA standards, accident investigation, and how to run safety programs -- not just how to work safely yourself, but how to keep a crew safe too.

Who needs to take the OSHA 30?

The OSHA 30 is typically required for supervisors, foremen, project managers, safety officers, and lead workers. Several states (New York, Connecticut, Missouri, Nevada, and others) mandate it for supervisors on public works projects. Plenty of general contractors and unions also require it for anyone in a leadership role on site. If you're responsible for other workers' safety, OSHA 30 is usually the baseline credential employers expect.

What's the difference between OSHA 30 General Industry and OSHA 30 Construction?

Both versions cover the same 30 hours and share core topics like OSHA rights, fall protection, electrical safety, PPE, and HazCom. The Construction version (29 CFR 1926) focuses on the Focus Four hazards -- falls, struck-by, caught-in/between, and electrocution -- along with scaffolds, excavations, and cranes. The General Industry version (29 CFR 1910) covers manufacturing, warehousing, and healthcare settings, spending more time on machine guarding, walking-working surfaces, bloodborne pathogens, and ergonomics. Pick the one that matches your actual work.

How long does the OSHA 30 card last?

Federally, the OSHA 30 DOL card doesn't carry a formal expiration date. But the real answer is: it depends on where you work. New York, for example, treats cards as valid for 5 years, after which workers need an SST refresher. Other states, employers, and union locals may require a refresh every 3 to 5 years as well. Always double-check with your jurisdiction or employer before assuming your card is still accepted.

Where can I take the OSHA 30 course?

Only trainers authorized through the OSHA Outreach Training Program can issue a valid DOL card. You can take it online through authorized providers (ClickSafety, 360training, OSHA Education Center, and others) or in person through a certified trainer, union, or community college. Be cautious of suspiciously cheap offerings -- if the provider isn't listed as an OSHA-authorized Outreach trainer, the card you get at the end won't be recognized.

How long does the OSHA 30 take to complete?

The course runs 30 hours of instruction. The Department of Labor caps online training at 7.5 hours per day, so most people spread it across 4 or 5 days. Some do it over a couple of weekends. In-person delivery typically runs about 4 full days. You can't skip or fast-forward the modules -- progress timers and knowledge checks make sure you actually sit through the material.

How much does the OSHA 30 cost?

Online authorized providers typically charge between $150 and $200. In-person classes can range from free (when sponsored by a union or employer) up to $400 or more through private trainers. Employers often cover the cost for supervisors, so check with your HR or safety department before paying out of pocket. Watch out for deals that seem too good to be true -- if the trainer isn't OSHA-authorized, you're paying for nothing.

What happens if I fail a module or the final?

Most providers let you retake failed module quizzes and the final, usually after a brief review. The passing score is 70 percent on each module. Retake policies vary -- some providers allow unlimited attempts on quizzes but cap the final at 2 or 3 tries before you'd need to redo that section. Questions come straight from the modules, so going back through your notes before retaking almost always does the trick.

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