Ontario Working at Heights Practice Test 2026: Practice test 2

1. Question 1 of 25

   Which of these must every learner demonstrate in the Practical module?

   • APutting on and taking off a harness and lanyard correctly
   • BBuilding a scaffold alone
   • CDriving an elevating work platform on a road
   • DTying a triple hitch knot to use in place of a fall arrester
   Show answer

   Answer: A. Putting on and taking off a harness and lanyard correctly

   The four required demonstrations are calculating fall distance and clearance, inspecting equipment, donning and doffing, and keeping tie-off while changing anchor points.

2. Question 2 of 25

   What are the three basic rights of workers under Ontario's health and safety law?

   • AThe right to choose a supervisor, pick hours and set wages
   • BThe right to skip training, work alone and set rules
   • CThe right to fine employers, close any unsafe site and hire their own inspectors
   • DThe right to know, the right to participate and the right to refuse unsafe work
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   Answer: D. The right to know, the right to participate and the right to refuse unsafe work

   The Act gives workers the right to know about hazards, to take part in solving problems and to refuse dangerous work.

3. Question 3 of 25

   You find a frayed lanyard in the gang box. What is your duty as a worker?

   • ACut off the frayed part and keep using the shorter lanyard
   • BKeep using it carefully until the end of the shift
   • CReport the defective equipment to your supervisor or employer
   • DHide it in the truck so that no one else picks it up
   Show answer

   Answer: C. Report the defective equipment to your supervisor or employer

   Workers must report missing or defective equipment or protective devices to their employer or supervisor under s. 28 of the Act.

4. Question 4 of 25

   Which general duty does s. 25(2)(h) of the Act place on the employer?

   • ATo let workers write all of the site's safety rules themselves without any help
   • BTo give each worker a new company truck every few years
   • CTo hire only workers who already hold a university degree
   • DTo take every precaution reasonable in the circumstances to protect a worker
   Show answer

   Answer: D. To take every precaution reasonable in the circumstances to protect a worker

   Clause 25(2)(h) requires employers to take every precaution reasonable in the circumstances. It applies even where no specific rule covers the hazard.

5. Question 5 of 25

   What must a supervisor make sure of when a worker is required to use fall protection?

   • AThat the worker signs a waiver
   • BThat the required equipment is used or worn
   • CThat the worker brings their own equipment from home
   • DThat the worker works alone
   Show answer

   Answer: B. That the required equipment is used or worn

   Under s. 27 of the Act, supervisors must ensure workers use or wear the equipment, protective devices or clothing the employer requires.

6. Question 6 of 25

   Who on a construction project must make sure every employer and worker on the project follows the Act and regulations?

   • AThe newest worker on site
   • BThe constructor
   • CThe equipment supplier
   • DThe local fire department
   Show answer

   Answer: B. The constructor

   Section 23 of the Act makes the constructor responsible for ensuring that every employer and worker on the project complies with the law.

7. Question 7 of 25

   A guardrail section must come down briefly so material can be lifted in. What does ministry guidance require?

   • AThe worker must be protected another way, and warning signs must be posted
   • BWork may continue as normal, as long as it only takes an hour
   • COnly the supervisor may go near the open edge while it is down
   • DThe edge may stay open for the rest of the project if all the workers agree
   Show answer

   Answer: A. The worker must be protected another way, and warning signs must be posted

   A guardrail or cover may be removed temporarily only if the worker is protected in another way and signs are posted.

8. Question 8 of 25

   You are told to work at an unprotected roof edge with no fall protection. What right do you have?

   • ANone: you must always do the work you are told to do
   • BYou may refuse only if at least one co-worker and the supervisor agree with you
   • CYou may refuse the work if you believe it is likely to endanger you
   • DYou may refuse only after you have finished the task once
   Show answer

   Answer: C. You may refuse the work if you believe it is likely to endanger you

   Section 43 of the Act lets a worker refuse work they have reason to believe is likely to endanger them. Tell your supervisor or employer right away.

9. Question 9 of 25

   What is the top cause of critical injuries and deaths of workers at Ontario construction sites?

   • AFalls
   • BSunburn
   • CNoise
   • DPaper cuts
   Show answer

   Answer: A. Falls

   The ministry states that falls are the top cause of critical injuries and deaths of construction workers in Ontario.

10. Question 10 of 25

    On a construction project, what fall height generally requires guardrails or other fall protection?

    • AA fall of more than 6 m
    • BA fall of more than 3 m
    • COnly falls from scaffolds
    • DA fall of more than 10 m
    Show answer

    Answer: B. A fall of more than 3 m

    O. Reg. 213/91 requires protection where a worker could fall more than 3 m. Lower heights also count in special situations.

11. Question 11 of 25

    A worker could fall from a wheelbarrow path. From what height is fall protection needed?

    • AMore than 0.3 m
    • BMore than 1.2 m
    • CMore than 3 m
    • DMore than 5 m
    Show answer

    Answer: B. More than 1.2 m

    For areas used as a path for a wheelbarrow or similar equipment, the trigger is a possible fall of more than 1.2 m.

12. Question 12 of 25

    A worker stands 1 m above an open tank of hazardous liquid. Is fall protection needed?

    • AYes, a fall into a hazardous substance needs protection whatever the height
    • BNo, only falls of more than 3 m need any protection
    • CNo, a liquid will cushion the fall, so no protection is needed at that height
    • DOnly if the worker has said that they cannot swim
    Show answer

    Answer: A. Yes, a fall into a hazardous substance needs protection whatever the height

    Protection is required where a worker could fall into water or other liquid, a hazardous substance or object, or operating machinery, regardless of height.

13. Question 13 of 25

    There is an opening in a floor where a worker could fall through. How deep must it be before a guardrail or cover is needed?

    • AOnly if the opening is more than 3 m deep
    • BOnly if the opening is deeper than the worker is tall
    • CAny depth: a guardrail or cover is always needed
    • DOnly if the opening is more than 1.2 m deep
    Show answer

    Answer: C. Any depth: a guardrail or cover is always needed

    Ministry guidance says a guardrail or cover is required for a work-surface opening regardless of its depth, because a whole body could fall through.

14. Question 14 of 25

    At what fall distance is a guardrail required at the open side of a floor, balcony, scaffold or work platform?

    • A15 m or more
    • BOnly above the fifth floor
    • C2.4 m or more
    • D0.5 m or more
    Show answer

    Answer: C. 2.4 m or more

    O. Reg. 213/91 requires a guardrail where a worker could fall 2.4 m or more from the open side of a floor, balcony, scaffold or similar surface.

15. Question 15 of 25

    How should a skylight on a roof be treated during construction work?

    • AAs a safe place to set down tools and materials during work
    • BAs solid roof that is safe to walk on, as long as the glass looks thick enough
    • CAs an opening, unless engineering documents show it can bear a worker's weight
    • DAs a guardrail, because it is higher than the roof surface
    Show answer

    Answer: C. As an opening, unless engineering documents show it can bear a worker's weight

    Skylights and non-structural covers are treated as openings unless engineering documentation shows they can support a worker.

16. Question 16 of 25

    Which condition does the program standard list as a special fall hazard to recognize?

    • AWorking in a heated office
    • BWorking on the ground floor of a parking lot
    • CWorking near skylights or on fragile work surfaces
    • DWorking at a desk with a computer
    Show answer

    Answer: C. Working near skylights or on fragile work surfaces

    The Basic Theory module covers fall hazards such as skylights, fragile surfaces, work over water and work near machinery or electrical equipment.

17. Question 17 of 25

    Under the hierarchy of controls, which is the most effective way to deal with a fall hazard?

    • AEliminate the hazard, for example by doing the work at ground level
    • BPost a warning sign at the edge of the work area
    • CTell the worker to be careful and to watch their step near the edge
    • DGive the worker a harness and tell them to hook on
    Show answer

    Answer: A. Eliminate the hazard, for example by doing the work at ground level

    Elimination is at the top of the hierarchy of controls. Personal protective equipment is the last option because it depends on correct use every time.

18. Question 18 of 25

    Why is personal fall protection equipment ranked last in the hierarchy of controls?

    • AIt is always the most expensive option for an employer
    • BIt removes the hazard completely, so it is rarely needed
    • CIt is only allowed on projects that last less than a week
    • DIt only works if it is chosen, worn and used correctly every time
    Show answer

    Answer: D. It only works if it is chosen, worn and used correctly every time

    PPE does not remove the hazard. The program standard asks learners to understand the limitations of PPE compared with higher controls.

19. Question 19 of 25

    Under O. Reg. 213/91, which fall protection method must be used first if it is practicable?

    • AA safety net
    • BA warning sign
    • CA fall arrest system
    • DA guardrail system
    Show answer

    Answer: D. A guardrail system

    Section 26.1(1) requires a guardrail where practicable. Other methods are used only when a guardrail is not practicable.

20. Question 20 of 25

    A guardrail is not practicable. Which method is ranked highest in O. Reg. 213/91?

    • AA travel restraint system
    • BA safety net
    • CA warning sign
    • DA hard hat
    Show answer

    Answer: A. A travel restraint system

    When guardrails are not practicable, the worker must be protected by the highest ranked practicable method. Travel restraint ranks highest.

21. Question 21 of 25

    Which fall protection method ranks lowest in the O. Reg. 213/91 ranking?

    • AA fall restricting system
    • BA safety net
    • CA guardrail system
    • DA travel restraint system
    Show answer

    Answer: B. A safety net

    Safety nets are at the bottom of the ranking in s. 26.1(2). They are used only when the higher ranked methods are not practicable.

22. Question 22 of 25

    An employer says guardrails cost too much for a roof job. What does ministry guidance say?

    • AWorkers must pay for guardrails
    • BGuardrails are only needed on government jobs
    • CCost is a good reason to use no protection
    • DCost does not override worker safety
    Show answer

    Answer: D. Cost does not override worker safety

    Ministry compliance guidance states that cost does not override worker safety when deciding whether guardrails are practicable.

23. Question 23 of 25

    During built-up roofing work, how far from the roof edge must a bump line be?

    • AExactly 30 cm
    • BAt least 2 m
    • CAt least 0.5 m
    • DAt least 10 m
    Show answer

    Answer: B. At least 2 m

    Section 207 of O. Reg. 213/91 requires bump lines to be at least 2 m from the roof edge during built-up roof work.

24. Question 24 of 25

    What is the main difference between a warning method, such as a bump line, and a guardrail?

    • AA warning method alerts workers to an edge, while a guardrail physically stops them
    • BA bump line is stronger than a guardrail and can stop a fall
    • CA guardrail only warns workers, while a bump line holds them back
    • DThere is no difference: both are physical barriers at the edge
    Show answer

    Answer: A. A warning method alerts workers to an edge, while a guardrail physically stops them

    The program standard covers warning methods and physical barriers separately. A barrier gives physical protection, while a warning only gives notice of the hazard.

25. Question 25 of 25

    What must a travel restraint system do?

    • ALift materials and workers up to the roof in a controlled way
    • BKeep the worker from reaching any edge or opening they could fall from
    • CCatch the worker after a long free fall and hold them in the air
    • DHold the worker's tools so they cannot drop to the level below
    Show answer

    Answer: B. Keep the worker from reaching any edge or opening they could fall from

    Travel restraint restricts movement on the work surface so the worker cannot get to the fall hazard at all.

Keyboard: 1–4 to answer, Enter for the next question.

The real test: Set by the program standard: a written test with a 75% pass mark, plus practical demonstrations. Your CPO-approved provider runs the evaluation.