Working at Heights Practice Test – Printable Questions and Answers

50 Ontario working at heights questions on fall hazards, guardrails, ladders, harnesses, lanyards, anchors, fall clearance and rescue, with a separate answer key. Free.

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Ontario's working at heights written test is set by your approved training provider, and you need at least 75 per cent. This sheet gives you 50 questions to work through on paper, mixed across our twelve topics: training requirements, roles and rights, fall hazards, the order of protection, guardrails and openings, ladders, fall protection systems, harnesses and lanyards, lifelines, anchors, fall clearance and rescue planning.

We do not copy any provider's test. Every question is written from O. Reg. 213/91, O. Reg. 297/13 and the Chief Prevention Officer's program standard, and the answer key on the last pages explains each answer. Learn the core numbers: 3 metres, guardrails 0.9 to 1.1 metres high, a 0.6 metre free fall for fall restricting, an 8 kilonewton arrest force limit, and training valid for three years. Print it, or choose Save as PDF to keep it on your phone.

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1.Where must the horizontal lifeline design be kept while the system is in use?
1. At the project, by the constructor
2. Nowhere; it can be thrown away
3. At the engineer's home office only
4. In the worker's personal vehicle
2.A worker is on a 2.5 m high scaffold platform with an open side. What protection does the regulation require?
1. A safety belt only
2. Nothing below 3 m
3. A guardrail system
4. A warning sign only
3.Why must workers be able to calculate total fall distance and clearance?
1. So a fall is stopped before they hit the ground or an object
2. To decide how fast they can work while at heights
3. To estimate how long the shift will take to finish
4. To work out how much rope to buy for the next project on the list
4.Where must the intermediate rail be located?
1. Midway between the top rail and the toe board
2. Right on top of the toe board at floor level only
3. Anywhere the installer finds convenient
4. Above the top rail as an extra hand grip
5.Which defect means a harness or lanyard must not be used?
1. A manufacturer's label that is still easy to read
2. Webbing that is clean and free of any stains
3. Cut, frayed or burned webbing, or damaged stitching
4. Buckles that move freely and close properly every time
6.Near electrical equipment or wires, which ladder material should not be used?
1. Aluminum
2. Fibreglass
3. Wood with clear finish
4. Any non-metal
7.A travel restraint system is not practicable on a sloped roof edge. Which method must be considered next?
1. A safety net
2. A warning sign at the edge
3. A safety belt only
4. A fall restricting system
8.Which information must the employer's working at heights training record include?
1. The names of everyone else who took the class
2. Worker's home address, age and blood type only
3. The colour and size of the worker's own harness and lanyard
4. Worker's name, provider, program name and completion date
9.Which duty belongs to the employer for work at heights?
1. Inspecting each worker's harness personally every hour
2. Deciding which worker rights apply on a particular day
3. Providing fall protection equipment in good condition
4. Buying each worker's personal tools and work boots every year
10.Must a fall arrest system's fixed support be independent?
1. Yes; it must be an independent fixed support
2. Only on the night shift
3. No; any shared point is perfectly fine
4. Only for the first worker on it
11.After it arrests a fall, what must a full body harness not do by itself?
1. Support the worker's legs
2. Hold the worker upright
3. Release or further lower the worker
4. Stay attached to the lanyard and anchor
12.What must every project where workers rely on fall arrest systems or safety nets have?
1. A second crew on every floor
2. A rescue helicopter on standby
3. A site-specific rescue plan
4. A ban on all overtime work
13.How must a horizontal lifeline system be installed and maintained?
1. According to the engineer's design
2. According to a co-worker's memory
3. However the crew finds fastest
4. Only as the supplier's ad suggests
14.What is the role of a safe work plan for work at heights?
1. Identify fall hazards and share them with workers and supervisors
2. Record the names of the workers who refused to climb a ladder
3. Set the hourly wage for each worker who works on a roof
4. List the brands of harness the company prefers to buy
15.Why should a lanyard be kept as short as practical?
1. To make it lighter to carry around the site
2. So it fits in a smaller storage bag
3. So more workers can share it at once
4. To reduce how far the worker can fall
16.What is the minimum diameter of wire rope used for a guardrail's top and intermediate rails?
1. 10 millimetres
2. 5 millimetres
3. 25 millimetres
4. 3 millimetres
17.On a harness label, which class letter means fall arresting?
1. P
2. D
3. A
4. E
18.Before using a step-ladder, what must be done?
1. Remove the spreaders for space
2. Open the legs fully and lock the spreaders
3. Lean it closed against the nearest wall
4. Stand it on a wooden pallet for extra height
19.If a guardrail is not practicable, which method ranks highest in Ontario's order of fall protection?
1. A fall arrest system
2. A travel restraint system
3. A safety net
4. A fall restricting system
20.What are the two modules of an approved working at heights program?
1. First Aid and Rescue
2. Basic Theory and Practical
3. Roofing and Steel
4. Ladders and Scaffolds sections
21.An employer threatens to fire a worker for asking for a harness. What does the OHSA say?
1. This is a prohibited reprisal
2. It is allowed if done in writing
3. It is allowed on small sites
4. It is allowed during probation
22.What static force must a temporary support for a fall restricting system withstand, unless used to the maker's written instructions?
1. At least 30 kilonewtons
2. At least 1 kilonewton
3. At least 6 kilonewtons
4. At least 2 kilonewtons
23.What is a fall restricting system?
1. A sign that restricts entry to the roof during high winds and storms
2. A net that restricts falling debris below a scaffold
3. A rule that restricts the number of workers on a ladder
4. A type of fall arrest system that limits a fall to a set distance
24.If a worker may drown at a project, how many workers trained in rescue must be available?
1. At least one
2. None
3. At least two
4. At least five
25.Each vertical lifeline should be attached to what?
1. The same anchor as the hoist
2. A loose bundle of rebar
3. Another worker's lifeline
4. Its own independent anchor
26.On an Ontario construction project, fall protection rules apply when a worker may fall more than how far?
1. 6 metres
2. 1 metre
3. 10 metres
4. 3 metres
27.When moving between anchor points, what must a worker do?
1. Stay tied off at all times, for example with a second lanyard
2. Unhook completely and walk quickly to the next anchor
3. Ask a co-worker to hold the lanyard in their hands
4. Hold onto the guardrail instead of using any lanyard at all
28.What lateral point load must the top rail of a guardrail resist?
1. 675 newtons
2. 100 newtons
3. 225 newtons
4. 2,000 newtons
29.What is the difference between an automatic and a manual rope grab?
1. An automatic one is for ladders; a manual one is for horizontal lines
2. An automatic one moves with you and locks; a manual one stays put
3. An automatic one needs batteries; a manual one runs on air pressure
4. There is no difference; the names are interchangeable
30.A ladder is used to reach a roof. How far must it extend above the landing?
1. At least 3 metres
2. At least 150 millimetres
3. It should stop below it
4. At least 900 millimetres
31.Why must the highest-ranked practicable method be used?
1. Lower methods are banned on every construction project
2. The ranking is only a suggestion with no legal force
3. Higher methods prevent the fall or reduce harm more reliably
4. Higher methods are always the cheapest to install on site
32.After a learner passes the written test, what must the evaluator do?
1. Review the incorrect answers with the learner
2. Nothing more; a pass ends the program at once
3. Destroy the test so nobody can see the answers
4. Send the test to the WSIB for a second mark
33.A worker is told to work at an unprotected roof edge with no fall protection. What may the worker do under the OHSA?
1. Refuse the work and report it to the supervisor or employer
2. Refuse and go home for the rest of the week without telling anyone
3. Do the work quickly, since refusals are not allowed on construction
4. Call a news reporter before telling anyone at the workplace
34.What can result from using an inappropriate item as an anchor point?
1. The lanyard becomes shorter and safer
2. The anchor can fail and the worker can fall
3. Nothing; any solid-looking item will work fine
4. The harness will automatically tighten
35.Which may be used as the body support in a travel restraint system?
1. A rope tied around the waist
2. Only a hard hat with a chin strap
3. A reflective safety vest
4. A full body harness or a safety belt
36.Where a worker may drown, where must the rescue equipment be kept?
1. In the supplier's warehouse until needed
2. Locked in the head office across town
3. At the nearest public marina only
4. In a suitable location on or near the project
37.Who must design a horizontal lifeline system on an Ontario construction project?
1. An engineer
2. The equipment rental clerk
3. The worker who will use it that day
4. Any supervisor on site
38.Which of these is a fall hazard under s. 26 even if the drop is short?
1. An opening in a work surface
2. A level parking lot
3. A wide, flat sidewalk
4. A painted line on a concrete floor
39.What does "bottoming out" mean in fall protection?
1. Hitting the ground or a lower level before the fall is stopped
2. Reaching the bottom rung of a ladder safely and slowly
3. Running out of rope on a reel during a slow, controlled descent
4. Setting a ladder's feet on the ground at the right angle
40.What should workers know before installing, relocating or removing guardrails?
1. Nothing special; guardrail work is always risk-free at any height
2. The precautions needed, since they may be exposed while doing it
3. Only the brand name of the guardrail system being used
4. Only how to paint the rails a highly visible colour
41.A self-retracting lifeline's fall indicator shows it has arrested a fall. What should you do?
1. Use it, since retractable lifelines reset themselves after a fall
2. Use it only for the rest of the shift, then report it
3. Reset the indicator by hand and continue using it right away
4. Do not use it until the manufacturer inspects and approves it
42.When should a portable ladder be inspected?
1. Only after someone has fallen
2. Only once a year, by the supplier who sold it
3. Only once, when it is first bought new
4. Before each use, and after it is dropped
43.A worker could drown, and neither guardrails nor any fall protection method is reasonably possible. What must the worker wear?
1. Rubber boots so the worker can wade out of the water
2. A full body harness tied to the nearest tree on shore
3. A hard hat with a chin strap and reflective tape
4. A lifejacket or other adequate personal flotation device
44.How does a worker refresh working at heights training before it expires?
1. Successfully complete the Practical module again
2. Retake only the Basic Theory written test online
3. Watch a short online video and sign a form
4. Ask the employer to extend it for a year
45.What must the employer provide to protect workers at heights, besides equipment?
1. A bonus for working at heights
2. Information, instruction and supervision
3. Personal life insurance policies
4. Free meals and transportation to the site
46.A worker arrives at a new site and is told to use an anchor they have not seen before. What should they do?
1. Test it by jumping on it while tied off
2. Ask for information about the anchor before using it
3. Choose a nearby pipe instead without asking
4. Use it without question, since all anchors are the same
47.When must a fall arrest system not include a shock absorber?
1. Whenever the worker weighs less than the weight shown on the label
2. Never; a shock absorber is required in every case
3. Whenever the work lasts less than one hour
4. When its extension could make the worker hit the level below
48.Who needs to understand emergency procedures for falls on a project?
1. Only the project owner
2. Only the first aid attendant on site
3. Employers, supervisors and workers
4. Only the safety inspector
49.How many workers may use one vertical lifeline at the same time?
1. One
2. Three
3. Four
4. Two
50.Which is a fall hazard that working at heights training says workers must recognize?
1. Fragile surfaces and skylights
2. Parked delivery vans
3. Indoor drinking fountains
4. Freshly painted interior walls

Answer key with explanations

1. A — At the project, by the constructor
Section 26.9(8) requires the constructor to keep the design at the project while the system is in use.
Vertical and horizontal lifelines · Based on: Ontario working at heights sources (Oct 2026), Ch. 9 Lifelines, O. Reg. 213/91 s. 26.9(8)
2. C — A guardrail system
Section 26.3(1) requires a guardrail at the open side of a scaffold platform or other work platform where a worker may fall 2.4 m or more, despite the 3 m threshold in s. 26.
Recognizing fall hazards · Based on: Ontario working at heights sources (Oct 2026), Ch. 3 Recognizing fall hazards, O. Reg. 213/91 s. 26.3(1)
3. A — So a fall is stopped before they hit the ground or an object
The standard requires learners to demonstrate calculating total fall distance and the clearance needed to prevent striking the ground or an object below.
Fall distance, clearance and swing falls · Based on: Ontario working at heights sources (Oct 2026), Ch. 11 Fall distance and clearance, Program Standard 9.2.2
4. A — Midway between the top rail and the toe board
Section 26.3(4) requires the intermediate rail to be located midway between the top rail and the toe board.
Guardrails, coverings and barriers · Based on: Ontario working at heights sources (Oct 2026), Ch. 5 Guardrails, coverings and barriers, O. Reg. 213/91 s. 26.3(4)
5. C — Cut, frayed or burned webbing, or damaged stitching
Inspect webbing for frays, cracks, cuts and burns, stitching for damage, and hardware for bends and cracks. Damaged equipment must not be used.
Harnesses, lanyards and connectors · Based on: Ontario working at heights sources (Oct 2026), Ch. 8 Harnesses, lanyards and connectors, WorkSafeBC booklet, Inspection
6. A — Aluminum
CCOHS says not to use an aluminum ladder near electricity; use a fibreglass ladder where electricity is a hazard and keep away from power lines.
Ladders · Based on: Ontario working at heights sources (Oct 2026), Ch. 6 Ladders, CCOHS — Climbing safely
7. D — A fall restricting system
After travel restraint, the next highest method in s. 26.1(2) is a fall restricting system, followed by fall arrest and then safety nets.
Choosing protection: the hierarchy · Based on: Ontario working at heights sources (Oct 2026), Ch. 4 Choosing protection, O. Reg. 213/91 s. 26.1(2)
8. D — Worker's name, provider, program name and completion date
The record includes the worker's name, the approved provider's name, the date of successful completion and the program's name; a CPO proof of completion also counts.
Who needs working at heights training · Based on: Ontario working at heights sources (Oct 2026), Ch. 1 Who needs working at heights training, O. Reg. 297/13 s. 10(2)
9. C — Providing fall protection equipment in good condition
The employer must provide the equipment and protective devices the law requires, maintain them in good condition, and give information, instruction and supervision.
Roles, rights and responsibilities · Based on: Ontario working at heights sources (Oct 2026), Ch. 2 Roles, rights and responsibilities, OHSA s. 25
10. A — Yes; it must be an independent fixed support
Section 26.6(2) requires a fall arrest system to be attached by a lifeline or lanyard to an independent fixed support that meets s. 26.7.
Anchor points and fixed supports · Based on: Ontario working at heights sources (Oct 2026), Ch. 10 Anchor points, O. Reg. 213/91 s. 26.6(2)
11. C — Release or further lower the worker
The definition of full body harness says that after the arrest it will not by itself permit the release or further lowering of the worker.
Travel restraint, fall restricting and fall arrest · Based on: Ontario working at heights sources (Oct 2026), Ch. 7 Fall protection systems, O. Reg. 213/91 s. 1
12. C — A site-specific rescue plan
The standard says each project where workers rely on fall arrest systems or safety nets must have a site-specific rescue plan, with information, instruction or training on it.
Rescue planning · Based on: Ontario working at heights sources (Oct 2026), Ch. 12 Rescue planning, Program Standard 9.2.5
13. A — According to the engineer's design
Section 26.9(8) requires the system to be installed or erected, and maintained, in accordance with the engineer's design.
Vertical and horizontal lifelines · Based on: Ontario working at heights sources (Oct 2026), Ch. 9 Lifelines, O. Reg. 213/91 s. 26.9(8)
14. A — Identify fall hazards and share them with workers and supervisors
The standard says safe work plans identify potential fall hazards, and their importance lies in communicating them to workers and supervisors.
Recognizing fall hazards · Based on: Ontario working at heights sources (Oct 2026), Ch. 3 Recognizing fall hazards, Program Standard 9.1.2
15. D — To reduce how far the worker can fall
WorkSafeBC says keep lanyards as short as possible to reduce the distance you could fall, aiming to limit free fall to no more than 1.2 m in fall arrest.
Fall distance, clearance and swing falls · Based on: Ontario working at heights sources (Oct 2026), Ch. 11 Fall distance and clearance, WorkSafeBC booklet, Lanyards
16. A — 10 millimetres
Wire rope rails must be at least 10 mm in diameter and kept taut by a turnbuckle or other device.
Guardrails, coverings and barriers · Based on: Ontario working at heights sources (Oct 2026), Ch. 5 Guardrails, coverings and barriers, O. Reg. 213/91 s. 26.3(8)
17. C — A
Harness classes: A fall arresting, D controlled descent, E confined entry, L ladder climbing, P work positioning. The program standard uses classification A harnesses.
Harnesses, lanyards and connectors · Based on: Ontario working at heights sources (Oct 2026), Ch. 8 Harnesses, lanyards and connectors, WorkSafeBC booklet, Full body harnesses
18. B — Open the legs fully and lock the spreaders
When a step-ladder is used, its legs must be fully spread open and its spreaders locked.
Ladders · Based on: Ontario working at heights sources (Oct 2026), Ch. 6 Ladders, O. Reg. 213/91 s. 83(1)
19. B — A travel restraint system
The ranking is: travel restraint, then fall restricting, then fall arrest, then safety net. The highest practicable method must be used.
Choosing protection: the hierarchy · Based on: Ontario working at heights sources (Oct 2026), Ch. 4 Choosing protection, O. Reg. 213/91 s. 26.1(2)
20. B — Basic Theory and Practical
The standard has two modules: Working at Heights Basic Theory and Working at Heights Practical. The theory module must be completed first.
Who needs working at heights training · Based on: Ontario working at heights sources (Oct 2026), Ch. 1 Who needs working at heights training, Program Standard s. 3
21. A — This is a prohibited reprisal
Section 50 forbids dismissing, threatening, disciplining or intimidating a worker for acting under the Act or seeking its enforcement.
Roles, rights and responsibilities · Based on: Ontario working at heights sources (Oct 2026), Ch. 2 Roles, rights and responsibilities, OHSA s. 50
22. C — At least 6 kilonewtons
A support in a fall restricting system must withstand at least 6 kN, unless it is used in accordance with the manufacturer's written instructions and is adequate.
Anchor points and fixed supports · Based on: Ontario working at heights sources (Oct 2026), Ch. 10 Anchor points, O. Reg. 213/91 s. 26.7(2)
23. D — A type of fall arrest system that limits a fall to a set distance
The regulation defines a fall restricting system as a type of fall arrest system designed to limit a worker's fall to a specified distance.
Travel restraint, fall restricting and fall arrest · Based on: Ontario working at heights sources (Oct 2026), Ch. 7 Fall protection systems, O. Reg. 213/91 s. 1
24. C — At least two
Section 27(2) requires at least two workers trained to perform rescue operations, rescue equipment in a suitable location, and all workers told the rescue procedures.
Rescue planning · Based on: Ontario working at heights sources (Oct 2026), Ch. 12 Rescue planning, O. Reg. 213/91 s. 27(2)
25. D — Its own independent anchor
WorkSafeBC lists attaching each lifeline to an independent point of anchorage as good practice; Ontario also requires an independent fixed support for fall arrest.
Vertical and horizontal lifelines · Based on: Ontario working at heights sources (Oct 2026), Ch. 9 Lifelines, WorkSafeBC booklet, Lifelines
26. D — 3 metres
Section 26 applies the fall protection rules where a worker may fall more than 3 m, and in several other situations regardless of height.
Recognizing fall hazards · Based on: Ontario working at heights sources (Oct 2026), Ch. 3 Recognizing fall hazards, O. Reg. 213/91 s. 26
27. A — Stay tied off at all times, for example with a second lanyard
Learners must demonstrate methods to maintain tie-off at all times when changing anchor points, considering body position, the fall hazard and direction of travel.
Fall distance, clearance and swing falls · Based on: Ontario working at heights sources (Oct 2026), Ch. 11 Fall distance and clearance, Program Standard 9.2.2
28. A — 675 newtons
The top rail must resist a 675 N lateral point load and a 450 N downward load; the intermediate rail 450 N; the toe board 225 N lateral.
Guardrails, coverings and barriers · Based on: Ontario working at heights sources (Oct 2026), Ch. 5 Guardrails, coverings and barriers, O. Reg. 213/91 s. 26.3(5)
29. B — An automatic one moves with you and locks; a manual one stays put
An automatic (mobile) rope grab travels with the worker and locks in a fall; a manual rope grab stays locked and must be moved by hand, so it suits restraint.
Harnesses, lanyards and connectors · Based on: Ontario working at heights sources (Oct 2026), Ch. 8 Harnesses, lanyards and connectors, WorkSafeBC booklet, Rope grabs
30. D — At least 900 millimetres
A ladder used for access between levels must extend at least 900 mm above the landing surface and be secured at top and bottom.
Ladders · Based on: Ontario working at heights sources (Oct 2026), Ch. 6 Ladders, O. Reg. 213/91 s. 82(2)
31. C — Higher methods prevent the fall or reduce harm more reliably
The regulation ranks methods so that preventing a fall (restraint) comes before stopping a fall (arrest) or catching it (net); the highest practicable method is legally required.
Choosing protection: the hierarchy · Based on: Ontario working at heights sources (Oct 2026), Ch. 4 Choosing protection, O. Reg. 213/91 s. 26.1(2)
32. A — Review the incorrect answers with the learner
The standard says that after a learner successfully completes the test, the evaluator must review incorrect answers with them to successfully complete the program.
Who needs working at heights training · Based on: Ontario working at heights sources (Oct 2026), Ch. 1 Who needs working at heights training, Program Standard s. 10.1
33. A — Refuse the work and report it to the supervisor or employer
Section 43 lets a worker refuse work they have reason to believe is likely to endanger them; they report it to the supervisor or employer, who must investigate.
Roles, rights and responsibilities · Based on: Ontario working at heights sources (Oct 2026), Ch. 2 Roles, rights and responsibilities, OHSA s. 43
34. B — The anchor can fail and the worker can fall
Learners identify the consequences of using inappropriate items as anchors: an anchor that cannot take the forces of a fall can fail.
Anchor points and fixed supports · Based on: Ontario working at heights sources (Oct 2026), Ch. 10 Anchor points, Program Standard 9.2.3
35. D — A full body harness or a safety belt
A travel restraint system consists of a full body harness with adequate attachment points or a safety belt, attached by a lifeline or lanyard to a fixed support.
Travel restraint, fall restricting and fall arrest · Based on: Ontario working at heights sources (Oct 2026), Ch. 7 Fall protection systems, O. Reg. 213/91 s. 26.4(1)
36. D — In a suitable location on or near the project
Section 27(2) requires rescue equipment to be provided in a suitable location on or near the project, with trained rescuers available and all workers told the procedures.
Rescue planning · Based on: Ontario working at heights sources (Oct 2026), Ch. 12 Rescue planning, O. Reg. 213/91 s. 27(2)
37. A — An engineer
Section 26.9(8) requires horizontal lifeline systems to be designed by an engineer in accordance with good engineering practice, as a standard or custom design.
Vertical and horizontal lifelines · Based on: Ontario working at heights sources (Oct 2026), Ch. 9 Lifelines, O. Reg. 213/91 s. 26.9(8)
38. A — An opening in a work surface
Falling through an opening on a work surface is one of the hazards that brings in ss. 26.1 to 26.9, whatever the height.
Recognizing fall hazards · Based on: Ontario working at heights sources (Oct 2026), Ch. 3 Recognizing fall hazards, O. Reg. 213/91 s. 26
39. A — Hitting the ground or a lower level before the fall is stopped
Bottoming out means the fall arrest system does not stop the worker before they strike the level below, which s. 26.6(3) requires the system to prevent.
Fall distance, clearance and swing falls · Based on: Ontario working at heights sources (Oct 2026), Ch. 11 Fall distance and clearance, Program Standard 9.2.2
40. B — The precautions needed, since they may be exposed while doing it
The standard asks learners to explain which precautions are necessary when installing, relocating or removing guardrails or protective coverings.
Guardrails, coverings and barriers · Based on: Ontario working at heights sources (Oct 2026), Ch. 5 Guardrails, coverings and barriers, Program Standard 9.1.4
41. D — Do not use it until the manufacturer inspects and approves it
Do not use the lifeline if the indicator shows a fall; after a fall, the manufacturer or its authorized agent must inspect and approve it for continued use.
Harnesses, lanyards and connectors · Based on: Ontario working at heights sources (Oct 2026), Ch. 8 Harnesses, lanyards and connectors, WorkSafeBC booklet, Retractable lifelines
42. D — Before each use, and after it is dropped
CCOHS says to inspect ladders on receipt, before each use, after they have been dropped or fallen, and before storage.
Ladders · Based on: Ontario working at heights sources (Oct 2026), Ch. 6 Ladders, CCOHS — Ladder inspection
43. D — A lifejacket or other adequate personal flotation device
Section 27(1) requires an adequate lifejacket or personal flotation device where drowning is possible and neither guardrails nor fall protection methods are reasonably possible.
Choosing protection: the hierarchy · Based on: Ontario working at heights sources (Oct 2026), Ch. 4 Choosing protection, O. Reg. 213/91 s. 27(1)
44. A — Successfully complete the Practical module again
Refresher training is achieved by successfully completing the Practical module, which renews validity for another three years. Only workers who completed both modules are eligible.
Who needs working at heights training · Based on: Ontario working at heights sources (Oct 2026), Ch. 1 Who needs working at heights training, Program Standard s. 11.2
45. B — Information, instruction and supervision
Clause 25(2)(a) requires the employer to provide information, instruction and supervision to protect the health and safety of workers.
Roles, rights and responsibilities · Based on: Ontario working at heights sources (Oct 2026), Ch. 2 Roles, rights and responsibilities, OHSA s. 25(2)(a)
46. B — Ask for information about the anchor before using it
The standard stresses the importance of asking for information before using new anchor points.
Anchor points and fixed supports · Based on: Ontario working at heights sources (Oct 2026), Ch. 10 Anchor points, Program Standard 9.2.3
47. D — When its extension could make the worker hit the level below
Despite the usual requirement, s. 26.6(4) says the system must not include a shock absorber if wearing or using one could cause a worker to hit the ground or an object or level below.
Travel restraint, fall restricting and fall arrest · Based on: Ontario working at heights sources (Oct 2026), Ch. 7 Fall protection systems, O. Reg. 213/91 s. 26.6(4)
48. C — Employers, supervisors and workers
The standard has learners explain the roles of employers, supervisors and workers regarding the fall rescue plan and emergency procedures.
Rescue planning · Based on: Ontario working at heights sources (Oct 2026), Ch. 12 Rescue planning, Program Standard 9.2.5
49. A — One
Section 26.9(6) says only one person at a time may use a vertical lifeline.
Vertical and horizontal lifelines · Based on: Ontario working at heights sources (Oct 2026), Ch. 9 Lifelines, O. Reg. 213/91 s. 26.9(6)
50. A — Fragile surfaces and skylights
The standard lists skylights, fragile work surfaces, and work over water, machinery, electrical equipment or hazardous substances as conditions exposing workers to falls.
Recognizing fall hazards · Based on: Ontario working at heights sources (Oct 2026), Ch. 3 Recognizing fall hazards, Program Standard 9.1.2

Original practice questions by Canada Exam Prep, written from the official handbook. Not official test questions. Free to print for personal study.

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Working at Heights Practice Test – Printable Questions and Answers