What is the format? These ten original multiple-choice questions introduce OSHA 30-Hour Construction Study Companion study topics. They are practice material, not actual exam items. OSHA 30 is an Outreach training course, not a standalone licensing exam. Not authorized OSHA Outreach training. Does not issue an OSHA card. Cards come only from OSHA-authorized trainers after 30 instructional hours.
What does this prepare me for? Construction hazard-recognition study, not authorized Outreach training or an OSHA card.
What should I study? Start with introduction to osha and worker rights, focus four: falls, focus four: electrocution. This bank uses 29 CFR 1926 / 1910; study only, no OSHA card issued. Check the current exam objectives, adopted editions, and permitted references before planning your study.
How should I practice? Choose an answer before opening the explanation. Read the cited reference and revisit unfamiliar topics. These samples are general preparation, not jurisdiction-specific advice.
1 / Introduction to OSHA and worker rights
Does completing CodeReady's independent OSHA 30 question bank qualify a learner to receive an OSHA Outreach course completion card?
- No; the applicable authorized Outreach training requirements must be completed
- Yes; answering 200 questions replaces the course
- Yes; any construction safety app may issue the card
- Yes; a passing practice score is an OSHA credential
Show answer & explanation
No; the applicable authorized Outreach training requirements must be completed
CodeReady is a study companion, not authorized Outreach training or an OSHA card issuer. An Outreach completion card documents the required training; a practice score does not.
OSHA Outreach Training Program requirements
2 / Focus Four: Falls
Under the general construction rule for unprotected sides and edges, at what height above a lower level is fall protection required?
- 20 feet or more
- 6 feet or more
- More than 10 feet
- 4 feet or more in all construction work
Show answer & explanation
6 feet or more
Section 1926.501(b)(1) uses 6 feet or more. Specific activities such as scaffold work and steel erection have separate provisions; the general threshold is not universal.
29 CFR 1926.501(b)(1)
3 / Focus Four: Falls
Under the general personal fall-arrest rigging rule, what is the maximum permitted free-fall distance?
- 12 feet whenever the anchor is steel
- 10 feet if a hard hat is worn
- Any distance if the lanyard absorbs energy
- 6 feet, with no contact with a lower level
Show answer & explanation
6 feet, with no contact with a lower level
The system must be rigged so the employee can neither free fall more than 6 feet nor contact a lower level. Total required clearance also includes arrest distance and system movement.
29 CFR 1926.502(d)(16)(iii)
4 / Focus Four: Electrocution
What does a ground-fault circuit interrupter primarily detect?
- Only an overload exceeding the branch-circuit breaker rating
- Only a drop in the supply voltage
- An imbalance between current leaving and returning through the monitored circuit conductors
- Only heating inside the extension-cord jacket
Show answer & explanation
An imbalance between current leaving and returning through the monitored circuit conductors
A GFCI detects differential current that may indicate current taking an unintended path. It reduces certain shock risks but does not replace grounding, overcurrent protection, or safe work practices.
29 CFR 1926.404(b)(1); OSHA Ground-Fault Circuit Interrupters guidance
5 / Focus Four: Struck-by
Which incident is primarily a struck-by hazard?
- A worker receives an electric shock from a cord
- A worker inhales solvent vapor
- A worker develops heat exhaustion
- A worker is hit by a falling wrench
Show answer & explanation
A worker is hit by a falling wrench
Struck-by incidents involve impact from objects or equipment, including falling tools, flying fragments, and moving vehicles. Preventing the impact requires controlling the source and the exposure area.
29 CFR 1926.501(c); OSHA Construction Focus Four: Struck-By Hazards
6 / Focus Four: Caught-in or between
Which situation is primarily a caught-in or between hazard?
- A worker is hit by a loose airborne nail
- A worker trips on a cord without contacting machinery
- A worker is pinned between a machine counterweight and a wall
- A worker inhales welding fumes
Show answer & explanation
A worker is pinned between a machine counterweight and a wall
Caught-in or between hazards squeeze, crush, pinch, or trap a person between objects or within equipment. The counterweight and wall create a crushing zone that must be kept clear.
OSHA Construction Focus Four: Caught-In or -Between Hazards; 29 CFR 1926.21(b)(2)
7 / Personal protective equipment
What should determine the selection of personal protective equipment for a construction task?
- Selecting solely from what coworkers happen to own
- Selecting solely by the lowest purchase price
- Using the same PPE for every task without evaluation
- The hazards, exposure conditions, and protection needed for the worker
Show answer & explanation
The hazards, exposure conditions, and protection needed for the worker
PPE must be appropriate for the hazards and capable of protecting the employee. Selection must account for the task and conditions, not appearance or price alone.
29 CFR 1926.95(a), (c)
8 / Health hazards and HazCom
What is the primary purpose of a safety data sheet for a hazardous chemical?
- Record employee attendance at a toolbox talk
- Replace all employee training
- Certify that the chemical cannot harm anyone
- Communicate hazards and information on handling, protection, and emergencies
Show answer & explanation
Communicate hazards and information on handling, protection, and emergencies
An SDS communicates chemical hazards and protective information in a standardized format. Employers must also provide labels, a written program, and effective information and training as required.
29 CFR 1926.59; 29 CFR 1910.1200(g)
9 / Scaffolds, ladders, and stairways
Under the construction scaffold rule, when must employees on scaffolds generally receive fall protection above a lower level?
- At exactly the same 6-foot threshold for every construction surface
- Only when more than 30 feet above it
- When more than 10 feet above the lower level
- Only when 20 feet or more above it
Show answer & explanation
When more than 10 feet above the lower level
Subpart L requires fall protection on scaffolds more than 10 feet above a lower level. The required type depends on the scaffold; do not substitute the general unprotected-edge threshold.
29 CFR 1926.451(g)(1)
10 / Excavations, cranes, and materials handling
An excavation is exactly 5 feet deep and is not made entirely in stable rock. What cave-in protection rule applies?
- The under-5-foot exception automatically applies
- Protection starts only when depth exceeds 10 feet
- An adequate protective system is required
- Protection is required only if water is present
Show answer & explanation
An adequate protective system is required
At 5 feet, the less-than-5-foot exception is unavailable. An adequate protective system is required unless the excavation is made entirely in stable rock.
29 CFR 1926.652(a)(1); 29 CFR 1926 Subpart P