A trainer gives a quiz during a 10-hour class. Does the quiz time count toward the 10 hours?Answer: No, testing is not instructional time. Source: OSHA Outreach Training Program, frequently asked questions
Does a 10-hour class fulfill an employer's duty to train workers under specific OSHA standards?Answer: No. Source: OSHA Outreach Training Program page
Does OSHA require a test to earn a 10-hour course completion card?Answer: No; a trainer may choose to give one. Source: OSHA Outreach Training Program, frequently asked questions
How does OSHA describe the trainers who teach 10-hour classes?Answer: Authorized, not certified, and not OSHA personnel. Source: OSHA Outreach Training Program, frequently asked questions
How many hours does the 10-hour construction class give to the Focus Four hazards?Answer: 4 hours. Source: OSHA Outreach Training Program, Construction Industry Procedures, effective October 1, 2024
How much of the 10-hour construction class is the Introduction to OSHA?Answer: 1 hour. Source: OSHA Outreach Training Program, Construction Industry Procedures, effective October 1, 2024
Is the Outreach Training Program required by OSHA?Answer: No, it is voluntary. Source: OSHA Outreach Training Program, frequently asked questions
Show all 120 questions (113 more)
The 10-hour class, continued
What is the minimum instructional time for the 10-hour construction class?Answer: 10 hours. Source: OSHA Outreach Training Program, Construction Industry Procedures, effective October 1, 2024
Which Focus Four topic must get at least 1 hour and 30 minutes in the 10-hour class?Answer: Falls. Source: OSHA Outreach Training Program, Construction Industry Procedures, effective October 1, 2024
Which of these is one of the Focus Four hazards?Answer: Caught-in or between. Source: OSHA Outreach Training Program, Construction Industry Procedures, effective October 1, 2024
Which three subjects does the topic list name for Health Hazards in Construction?Answer: Noise, hazard communication and crystalline silica. Source: OSHA Outreach Training Program, Construction Industry Procedures, effective October 1, 2024
Who decides whether a student has successfully completed an Outreach class?Answer: The trainer. Source: OSHA Outreach Training Program, frequently asked questions
Worker rights and employer duties 15
A tool on site does not comply with the construction rules. Besides removing it, what may be done?Answer: Tag it as unsafe or lock its controls. Source: 29 CFR 1926.20(b)(3)
An employee believes they were discharged for filing a safety complaint. How long does the Act give to file a discrimination complaint?Answer: Thirty days. Source: Occupational Safety and Health Act of 1970, section 11(c)(2)
An employee files a safety complaint. What does section 11(c) forbid?Answer: Discharging or discriminating against the employee for it. Source: Occupational Safety and Health Act of 1970, section 11(c)(1)
During an OSHA inspection, what opportunity does the Act give a representative authorized by the employees?Answer: To accompany the inspector during the physical inspection. Source: Occupational Safety and Health Act of 1970, section 8(e)
Employees believe a violation exists that threatens physical harm. What does the Act let them do?Answer: Request an inspection. Source: Occupational Safety and Health Act of 1970, section 8(f)(1)
In the construction rules, what sets a competent person apart?Answer: They can identify hazards and have authorization to take prompt corrective measures. Source: 29 CFR 1926.32(f)
In what form must an employee's notice asking for an inspection be made?Answer: In writing. Source: 29 CFR 1903.11(a)
On a construction job, who must make frequent and regular inspections of the site, materials and equipment?Answer: Competent persons designated by the employer. Source: 29 CFR 1926.20(b)(2)
Under the general duty clause, each employer must furnish a place of employment free from what?Answer: Recognized hazards likely to cause death or serious physical harm. Source: Occupational Safety and Health Act of 1970, section 5(a)(1)
What does the OSH Act require of each employee?Answer: To comply with the standards and rules that apply to their own actions and conduct. Source: Occupational Safety and Health Act of 1970, section 5(b)
What must a construction employer instruct each employee in?Answer: The recognition and avoidance of unsafe conditions. Source: 29 CFR 1926.21(b)(2)
What must an employer set up so that employees can report work-related injuries and illnesses?Answer: A reasonable procedure for reporting promptly and accurately. Source: 29 CFR 1904.35(b)(1)(i)
Where must an OSHA citation be posted?Answer: At or near each place the violation occurred. Source: Occupational Safety and Health Act of 1970, section 9(b)
Which employees may an employer permit to operate equipment and machinery on a construction site?Answer: Only those qualified by training or experience. Source: 29 CFR 1926.20(b)(4)
Who has the right to access the OSHA injury and illness records?Answer: Employees, former employees and their representatives. Source: 29 CFR 1904.35(b)(2)
Falls 18
A cover over a hole in a floor must support at least how much?Answer: Twice the weight of the workers, equipment and materials that may be on it at one time. Source: 29 CFR 1926.502(i)(2)
A guardrail top rail must withstand a force of at least how much?Answer: 200 pounds. Source: 29 CFR 1926.502(b)(3)
A personal fall arrest system must be rigged so the worker cannot free fall more than how far?Answer: 6 feet. Source: 29 CFR 1926.502(d)(16)
A roof slope of 4 in 12 or less is called what in the fall protection rules?Answer: A low-slope roof. Source: 29 CFR 1926.500(b)
A worker falls and hangs in a harness. What must the employer have provided for?Answer: Prompt rescue. Source: 29 CFR 1926.502(d)(20)
An anchorage for personal fall arrest equipment must support at least how much per employee attached?Answer: 5,000 pounds. Source: 29 CFR 1926.502(d)(15)
At what height above a lower level does a construction worker on a surface with an unprotected side or edge need fall protection?Answer: 6 feet or more. Source: 29 CFR 1926.501(b)(1)
How far below the working surface may a safety net be installed, at most?Answer: 30 feet. Source: 29 CFR 1926.502(c)(1)
How high above the walking level must the top edge of a guardrail be?Answer: 42 inches, plus or minus 3 inches. Source: 29 CFR 1926.502(b)(1)
How may workers be protected from falling through a skylight more than 6 feet above a lower level?Answer: Personal fall arrest systems, covers or guardrail systems. Source: 29 CFR 1926.501(b)(4)
How must a hole cover be marked?Answer: With the word HOLE or COVER, or color coded. Source: 29 CFR 1926.502(i)(4)
How often must personal fall arrest systems be inspected for wear and damage?Answer: Prior to each use. Source: 29 CFR 1926.502(d)(21)
In the fall protection rules, how small can a gap in a floor or roof be and still count as a hole?Answer: 2 inches in its least dimension. Source: 29 CFR 1926.500(b)
May a body belt be used as part of a personal fall arrest system?Answer: No. Source: 29 CFR 1926.502(d)
On a steep roof 6 feet or more above a lower level, which protection does the rule list?Answer: Guardrails with toeboards, safety nets or personal fall arrest. Source: 29 CFR 1926.501(b)(11)
Which three systems does the rule list for unprotected sides and edges?Answer: Guardrail, safety net or personal fall arrest systems. Source: 29 CFR 1926.501(b)(1)
Who must get the employer's fall protection training program?Answer: Each employee who might be exposed to fall hazards. Source: 29 CFR 1926.503(a)(1)
With a body harness, a personal fall arrest system must limit the arresting force on the worker to what?Answer: 1,800 pounds. Source: 29 CFR 1926.502(d)(16)
Electrocution 12
A worker breaks concrete with a jack hammer where the exact place of underground power lines is unknown. What must be provided?Answer: Insulated protective gloves. Source: 29 CFR 1926.416(a)(2)
Before work begins near electric circuits, how does the employer find out where energized circuits are?Answer: By inquiry, direct observation or instruments. Source: 29 CFR 1926.416(a)(3)
Equipment or circuits that are deenergized for work must be rendered inoperative and what else?Answer: Have tags attached at every point where they can be energized. Source: 29 CFR 1926.417(b)
Portable electric lighting in a wet tank or drum must run at what voltage unless it has ground-fault protection?Answer: 12 volts or less. Source: 29 CFR 1926.405(a)(2)(ii)(G)
Under an assured equipment grounding conductor program, the required tests are repeated at intervals of no more than what?Answer: 3 months. Source: 29 CFR 1926.404(b)(1)(iii)(E)
Under an assured equipment grounding conductor program, when are cord sets and plug-connected equipment visually inspected?Answer: Before each day's use. Source: 29 CFR 1926.404(b)(1)(iii)(C)
What does the construction rule say about worn or frayed electric cords?Answer: They shall not be used. Source: 29 CFR 1926.416(e)(1)
What type must extension cord sets used with portable electric tools be?Answer: Three-wire type. Source: 29 CFR 1926.405(a)(2)(ii)(J)
Which temporary receptacle outlets on a construction site need ground-fault circuit interrupters?Answer: 120-volt, single-phase, 15- and 20-ampere outlets in use by employees. Source: 29 CFR 1926.404(b)(1)(ii)
Which two ways may a construction employer protect workers from ground faults?Answer: Ground-fault circuit interrupters or an assured equipment grounding conductor program. Source: 29 CFR 1926.404(b)(1)(i)
Which way of hanging an extension cord does the rule forbid?Answer: Fastening it with staples. Source: 29 CFR 1926.416(e)(2)
Who carries out an assured equipment grounding conductor program for the employer?Answer: One or more designated competent persons. Source: 29 CFR 1926.404(b)(1)(iii)(B)
Struck-by 10
A haulage truck is loaded by a crane or power shovel. What protects its operator from shifting or falling material?Answer: A cab shield or canopy. Source: 29 CFR 1926.601(b)(6)
A jobsite motor vehicle has an obstructed view to the rear. Besides an observer, what lets it back up?Answer: A reverse signal alarm audible above the surrounding noise. Source: 29 CFR 1926.601(b)(4)
A truck is being loaded at an excavation. Where must workers on foot be?Answer: Standing away from the vehicle. Source: 29 CFR 1926.651(e)
An equipment operator near an excavation cannot see its edge clearly. Which warning system does the rule give as an example?Answer: Barricades, hand or mechanical signals, or stop logs. Source: 29 CFR 1926.651(f)
Tools and material ride in the same vehicle compartment as workers. What does the rule require?Answer: They are secured to prevent movement. Source: 29 CFR 1926.601(b)(7)
Under the fall protection rules, what must each employee exposed to falling objects wear?Answer: A hard hat. Source: 29 CFR 1926.501(c)
What does the excavation rule say about standing under a load handled by lifting or digging equipment?Answer: No employee is permitted underneath it. Source: 29 CFR 1926.651(e)
When must jobsite vehicles be checked for safe brakes, steering, horn and other listed parts?Answer: At the beginning of each shift. Source: 29 CFR 1926.601(b)(14)
Which hazard is among those that call for a protective helmet on a construction site?Answer: Falling or flying objects. Source: 29 CFR 1926.100(a)
Workers at an excavation are exposed to public vehicular traffic. What must they wear?Answer: Warning vests or other garments of reflectorized or high-visibility material. Source: 29 CFR 1926.651(d)
Caught-in or between 12
A power tool is designed to accommodate a guard. When must the guard be on?Answer: When the tool is in use. Source: 29 CFR 1926.300(b)(1)
The air in an excavation deeper than 4 feet may be short of oxygen. Below what oxygen level is the atmosphere oxygen deficient under the rule?Answer: 19.5 percent. Source: 29 CFR 1926.651(g)(1)(i)
At what trench depth must a stairway, ladder, ramp or other safe way out be provided?Answer: 4 feet or more. Source: 29 CFR 1926.651(c)(2)
Belts, gears, shafts, pulleys and other moving parts are exposed to contact by workers. What does the tool rule require?Answer: They are guarded. Source: 29 CFR 1926.300(b)(2)
The competent person finds evidence of a possible cave-in. What happens to the exposed workers?Answer: They are removed from the hazardous area until precautions are taken. Source: 29 CFR 1926.651(k)(2)
How far back from the edge of an excavation must excavated material and equipment be kept?Answer: At least 2 feet. Source: 29 CFR 1926.651(j)(2)
How far may a worker in a trench have to travel sideways to reach a way out, at most?Answer: 25 feet. Source: 29 CFR 1926.651(c)(2)
How often must a competent person inspect an excavation, the adjacent areas and the protective systems?Answer: Daily. Source: 29 CFR 1926.651(k)(1)
Water is building up in an excavation. What does the rule say about working in it?Answer: No work unless adequate precautions protect the workers. Source: 29 CFR 1926.651(h)(1)
When is cave-in protection not required for an excavation?Answer: When it is entirely in stable rock, or under 5 feet deep with no sign of a possible cave-in found by a competent person. Source: 29 CFR 1926.652(a)(1)
When must the location of underground utilities be determined?Answer: Prior to opening an excavation. Source: 29 CFR 1926.651(b)(1)
Which of these does the excavation rule count as a protective system?Answer: A shield system. Source: 29 CFR 1926.650(b)
Protective equipment 8
A worker brings their own protective equipment. Who is responsible for making sure it is adequate?Answer: The employer. Source: 29 CFR 1926.95(b)
A worker who wears prescription lenses does a task with eye hazards. What eye protection does the rule call for?Answer: Protection with the prescription built in, or protection worn over the lenses. Source: 29 CFR 1926.102(a)(3)
Employees work over or near water where the danger of drowning exists. What must they be provided with?Answer: U.S. Coast Guard-approved life jackets or buoyant work vests. Source: 29 CFR 1926.106(a)
In what condition must protective equipment be maintained?Answer: Sanitary and reliable. Source: 29 CFR 1926.95(a)
Is plain cotton an acceptable hearing protection device under the construction rule?Answer: No. Source: 29 CFR 1926.101(c)
Ring buoys for emergency rescue near water need at least how much line?Answer: 90 feet. Source: 29 CFR 1926.106(c)
Which item is the employer not required to pay for, if workers may wear it off the job site?Answer: Non-specialty safety-toe footwear. Source: 29 CFR 1926.95(d)(2)
Who pays for most required personal protective equipment on a construction job?Answer: The employer, at no cost to employees. Source: 29 CFR 1926.95(d)(1)
Health hazards: noise and silica 10
How often must the employer review the written silica exposure control plan?Answer: At least annually. Source: 29 CFR 1926.1153(g)(2)
In the construction noise table, how long per day is 95 dBA permitted?Answer: 4 hours. Source: 29 CFR 1926.52, Table D-2
In the construction noise table, what sound level is permitted for 8 hours a day?Answer: 90 dBA. Source: 29 CFR 1926.52, Table D-2
Noise on a site exceeds the table. What must be used first?Answer: Feasible administrative or engineering controls. Source: 29 CFR 1926.52(b)
What is the action level for respirable crystalline silica?Answer: 25 micrograms per cubic meter of air. Source: 29 CFR 1926.1153(b)
What is the highest sound level in the construction noise table, permitted for a quarter hour or less?Answer: 115 dBA. Source: 29 CFR 1926.52, Table D-2
What is the permissible exposure limit for respirable crystalline silica in construction, as an 8-hour average?Answer: 50 micrograms per cubic meter of air. Source: 29 CFR 1926.1153(d)(1)
Where sound levels exceed the table values, what program must be administered?Answer: A continuing, effective hearing conservation program. Source: 29 CFR 1926.52(d)(1)
Where sweeping could add to silica exposure, which cleaning method does the silica rule restrict?Answer: Dry sweeping or dry brushing. Source: 29 CFR 1926.1153(f)(1)
Which workers must be offered silica medical surveillance at no cost?Answer: Those required by the silica rule to use a respirator 30 or more days per year. Source: 29 CFR 1926.1153(h)(1)(i)
Ladders and stairways 13
A ladder is used where it could contact exposed energized electrical equipment. What must its side rails be?Answer: Nonconductive. Source: 29 CFR 1926.1053(b)(12)
A portable ladder has a broken rung. Until it is repaired, what does the rule require?Answer: It is marked or tagged, for example with Do Not Use, and withdrawn from service. Source: 29 CFR 1926.1053(b)(16)
A portable ladder is used to reach an upper landing. How far above the landing must its side rails extend?Answer: At least 3 feet. Source: 29 CFR 1926.1053(b)(1)
A stairway or ladder is required at a point of access where the break in elevation is how much, when there is no ramp, runway or hoist?Answer: 19 inches or more. Source: 29 CFR 1926.1051(a)
A straight ladder leans against a wall. How far out should its foot be from the top support?Answer: About one-quarter of the working length of the ladder. Source: 29 CFR 1926.1053(b)(5)(i)
May a ladder be moved, shifted or extended while someone is on it?Answer: No. Source: 29 CFR 1926.1053(b)(11)
May the cross-bracing on the rear of an ordinary stepladder be used for climbing?Answer: No, unless the ladder is designed with steps on both sections. Source: 29 CFR 1926.1053(b)(14)
May the top or top step of a stepladder be used as a step?Answer: No. Source: 29 CFR 1926.1053(b)(13)
What does the ladder rule say about carrying a load while climbing?Answer: No object or load that could cause a loss of balance and a fall. Source: 29 CFR 1926.1053(b)(22)
Which stairways need a handrail and a stairrail along each unprotected side?Answer: Those with four or more risers or rising more than 30 inches, whichever is less. Source: 29 CFR 1926.1052(c)(1)
Which way must a worker face when going up or down a ladder?Answer: Facing the ladder. Source: 29 CFR 1926.1053(b)(20)
While climbing, how many hands must a worker use to grasp the ladder, at least?Answer: One. Source: 29 CFR 1926.1053(b)(21)
Who inspects ladders for visible defects, and when?Answer: A competent person, periodically and after any occurrence that could affect safe use. Source: 29 CFR 1926.1053(b)(15)
General industry 10
A doorway along an exit access could be mistaken for an exit. How must it be marked?Answer: Not an Exit, or by a sign showing its actual use. Source: 29 CFR 1910.37(b)(5)
A hazard on a walking-working surface cannot be repaired right away. What must be done until it is?Answer: The hazard is guarded so employees do not use the surface. Source: 29 CFR 1910.22(d)(2)
A repair involves the structural integrity of a walking-working surface. Who performs or supervises it?Answer: A qualified person. Source: 29 CFR 1910.22(d)(3)
An employee alarm system must be operable and have what kind of signal?Answer: A distinctive signal that warns of fire or other emergencies. Source: 29 CFR 1910.37(e)
An employer provides fire extinguishers for employees to use. When must it give the educational program on their use?Answer: On initial employment and at least annually after that. Source: 29 CFR 1910.157(g)(2)
How must portable fire extinguishers be placed in a general industry workplace?Answer: Mounted, located and identified so they are readily accessible. Source: 29 CFR 1910.157(c)(1)
How often must portable fire extinguishers be visually inspected?Answer: Monthly. Source: 29 CFR 1910.157(e)(2)
In what condition must general industry places of employment, passageways and storerooms be kept?Answer: Clean, orderly and sanitary. Source: 29 CFR 1910.22(a)(1)
What does the general industry rule say about exit routes?Answer: They must be free and unobstructed. Source: 29 CFR 1910.37(a)(3)
Which of these is on the rule's list of hazards that walking-working surfaces must be kept free of?Answer: Spills. Source: 29 CFR 1910.22(a)(3)
How this list was compiled: 29 CFR Part 1926 (subparts C, E, K, M, P and X and sections 1926.52, 1926.300, 1926.601, 1926.602 and 1926.1153), 29 CFR 1910.22, 1910.37 and 1910.157, 29 CFR 1903.11 and 1904.35, in the text dated September 30, 2026; the Occupational Safety and Health Act of 1970; and OSHA's Outreach Training Program pages and Construction Industry Procedures effective October 1, 2024 Licence: Questions, choices and explanations are our own wording. The federal rules, the Act and OSHA's program pages are U.S. government works in the public domain.
How it works
This unofficial OSHA 10 practice test holds 120 sample questions: 110 on the 10-hour construction class and OSHA's topic list for it, ten on general industry, written from federal sources read October 4, 2026. There is no government OSHA 10 test.
Read the full guide
What the questions cover
Ten topics follow the 10-hour construction outline: the class itself, worker rights and employer duties, falls, electrocution, struck-by, caught-in or between, protective equipment, noise and silica, ladders and stairways, and a general industry filter. Each explanation names its rule, so each practice question and its answer can be checked at the source.
Practice only, with no pass mark
OSHA's Outreach questions page says testing is not required and the trainer decides who has completed a class. Exam mode draws 25 questions, which is this site's choice, and shows a score with no pass or fail.
Start with Falls: the 10-hour outline gives falls at least 1 hour and 30 minutes, more than any other Focus Four hazard.
Pick the General industry filter to practice exit routes, walking-working surfaces and fire extinguishers from 29 CFR Part 1910.
Questions and answers
Is the OSHA 10 test hard?
How hard is the OSHA 10 test? That is up to the trainer. OSHA's Outreach questions page says testing is not required, so a trainer may give a quiz of their own or none. OSHA sets no test and no pass mark.
Are there answers for OSHA 10 test questions?
No government set of OSHA 10 test questions and answers exists, since OSHA writes no test. In place of OSHA 10 test answers, this page gives its own questions, each with an explained answer and the rule or OSHA page it rests on.
Does this practice test give an OSHA 10 card?
No. OSHA's Outreach page says authorized trainers issue course completion cards to students who complete a class. This page is unofficial practice, is not an Outreach class and gives no card.
What does the 10-hour construction class cover?
OSHA's Construction Industry Procedures list one hour of Introduction to OSHA, four hours on the Focus Four hazards, 30 minutes each on protective equipment and health hazards, two hours of electives and two optional hours.