Free Practice Test
Free OSHA 30 Practice Test
Try 10 free construction-safety review questions covering fall protection, PPE, electrical safety, excavation, and hazard recognition. No signup is required. This is supplemental practice, not an OSHA-authorized Outreach course, and it cannot issue a course completion card.
Practice boundary
What is included in this OSHA 30 practice set?
This page includes 10 static review questions plus an interactive five-question set. Each score describes only the questions answered here; it is not a course result, completion record, or readiness prediction.
OSHA's Outreach Training Program is delivered by OSHA-authorized trainers. Use your trainer or online provider for the required course, current assessment rules, and student course completion card.
Source-checked trench review
What is OSHA's 2-foot trench spoil rule?
When excavated material, other materials, or equipment could endanger employees by falling or rolling into an excavation, OSHA requires protection. One method is to keep those materials or equipment at least 2 feet (0.61 m) from the edge. A retaining device sufficient to prevent the hazard can be used instead, or both methods can be combined when necessary.
OSHA 30-Hour · Question 1 of 5
At what height must fall protection be provided for workers on construction sites?
Pick an answer to see the explanation + an instant AI breakdown.
10 Free OSHA 30 Construction Practice Questions
Q1. At what height must fall protection be provided for workers on construction sites?Show answer
✓ Correct Answer: 6 feet
OSHA requires fall protection at 6 feet or more above a lower level in construction. This is the general trigger height for Subpart M.
Q2. A controlled access zone used for leading edge work must be defined by a control line erected not less than 6 feet nor more than how many feet from the leading edge?Show answer
✓ Correct Answer: 25 feet
A controlled access zone for leading edge work must be defined by a control line erected not less than 6 feet (1.8 m) nor more than 25 feet (7.7 m) from the leading edge. This zone limits access to authorized employees only.
Q3. When a competent person determines that work on a scaffold is unsafe due to weather conditions, what must happen?Show answer
✓ Correct Answer: Work on the scaffold must be stopped until conditions improve
Work on or from scaffolds is prohibited during storms or high winds unless a competent person has determined that it is safe for employees to be on the scaffold and those employees are protected.
Q4. Receptacles on construction sites that are not part of the permanent wiring must have:Show answer
✓ Correct Answer: GFCI protection or be part of an AEGCP
All 120-volt, single-phase, 15- and 20-ampere receptacle outlets on construction sites that are not part of the permanent wiring must have GFCI protection or be covered by an AEGCP.
Q5. Stairway landings must be at least as wide as the stair and at least how many inches deep?Show answer
✓ Correct Answer: 30 inches
Stairway landings shall be at least as wide as the stair and at least 30 inches measured in the direction of travel.
Q6. The signal person must be:Show answer
✓ Correct Answer: Qualified by a third-party evaluator or employer's qualified evaluator
Signal persons must be qualified by either a third-party qualified evaluator or the employer's qualified evaluator. They must know and understand the standard hand signals and be competent in the application of required signals.
Q7. What is 'stable rock' as defined in OSHA's excavation standard?Show answer
✓ Correct Answer: Natural solid mineral matter that can be excavated with vertical sides and remain intact while exposed
Stable rock is defined as natural solid mineral material that can be excavated with vertical sides and will remain intact while exposed. Excavations in stable rock do not require sloping or shoring, as the rock is self-supporting.
Q8. What does a Type I hard hat protect against?Show answer
✓ Correct Answer: Top impacts only (blows to the top of the head)
A Type I hard hat is designed to reduce the force of impact resulting from a blow to the top of the head only. Type II hard hats provide protection from blows to both the top and sides of the head. The type designation indicates the area of protection, while the class designation (E, G, or C) indicates the level of electrical protection.
Q9. What is the most common health effect associated with prolonged exposure to lead in construction?Show answer
✓ Correct Answer: Damage to the nervous system, kidneys, and reproductive system
Lead exposure in construction can cause serious health effects including damage to the nervous system, kidneys, reproductive system, and blood-forming organs. Workers can be exposed during activities such as demolition, renovation, abrasive blasting, and cutting/welding lead-painted surfaces.
Q10. Which item is an engineering control?Show answer
✓ Correct Answer: Guarding a machine hazard
Engineering controls isolate people from hazards through physical design or equipment. Guardrails, machine guards, ventilation, and trench shields are examples.
What Does OSHA 30 Construction Outreach Cover?
OSHA describes its Outreach Training Program as basic and more advanced education about common job-safety hazards, worker rights, employer responsibilities, and complaint procedures. The 30-hour class is intended for supervisors and workers with safety responsibility. It is voluntary at the federal level, is not a certification, and does not replace hazard-specific training required by OSHA standards. Employer, project, state, or local requirements can differ.
Read OSHA's Outreach Training Program overviewIs There One Official OSHA 30 Final-Exam Format?
Do not use a generic practice page as the source for your assessment rules. Confirm the current question count, passing requirement, time limit, retake policy, and completion process with the OSHA-authorized trainer or online provider delivering your course.
How to Use OSHA 30 Practice Questions
- 1.Start with your course materials. Use the required topics and instructions from your OSHA-authorized trainer or online provider as your study plan.
- 2.Read every condition. A depth, distance, hazard, exception, or competent-person determination can change which rule applies.
- 3.Separate related trench rules. Access and egress, falling or rolling materials, inspections, and protective systems are distinct requirements.
- 4.Use missed questions as review prompts. Check the cited OSHA source and your course materials instead of treating the practice score as a prediction.
- 5.Verify job and local requirements. OSHA does not federally require Outreach training, but an employer, project, state, or locality may set its own requirement.
Keep studying — free, no signup
Work more practice questions or grab a free study guide.
Ready for more OSHA 30 review?
Keep practicing in your browser
Continue supplemental web practice on construction hazard recognition. Use your OSHA-authorized trainer or online provider for the actual course and completion card.
Web access unlocks browser study only. Native apps are separate for offline mobile study.
Frequently Asked Questions
Does this practice page provide the OSHA 30-hour course or card?
No. VoltExam provides supplemental practice only. OSHA-authorized trainers and online providers deliver Outreach classes and issue student course completion cards after the required training is successfully completed.
Is there one official OSHA 30 final-exam format?
Use the current assessment rules from your OSHA-authorized trainer or online provider. This page does not claim a universal question count, passing score, time limit, or retake policy.
Does my score on this page predict my course result?
No. The score describes only the practice questions you answered here. Use missed questions to choose what to review, then follow your trainer's course materials and instructions.