ASP Construction 30-Hour Course – Printable Questions and Answers

50 ASP Construction practice questions on falls, lockout, scaffolds, trenches, WHMIS and site rules, with a separate answer key. Print or save as PDF. Free.

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The ASP Construction 30-hour course ends with a final exam on the 19 modules. This sheet gives you 50 original questions to practise on paper, mixed across our twelve topics: prevention rights, site organization, protective equipment, noise and manual handling, electricity and lockout, tools and fire, traffic, contaminants and WHMIS, falls, ladders and scaffolds, lifting equipment, and excavations and confined spaces.

We do not copy the ASP Construction manual or exam. Every question is written from Québec's Construction Safety Code, the Act respecting occupational health and safety and public WHMIS guidance, and the answer key on the last pages explains each answer. Focus on the numbers that come up again and again: 3 m, 1.2 m, 2 m, 18 kN, 15 m and 19.5% oxygen. Print the sheet, or choose Save as PDF to keep it on your phone.

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1.What training must the employer give on hearing protectors?
1. Theory and hands-on training on choosing, fitting, inspecting and maintaining them
2. No training, since hearing protectors are easy to use without help
3. An online video the worker watches once when hired
4. Just a poster near the site entrance reminding everyone to wear earplugs
2.A truck must back up in an area where people walk. Which options does the Code allow?
1. Backing in a no-pedestrian backing area or being guided all the way by a signaller
2. Backing with hazard lights on, which replaces the site signaller
3. Backing only if a pedestrian agrees to watch the back of the truck for the driver
4. Backing slowly while honking, with no other measure, if the driver is very experienced
3.How many workers may use at the same time a steel-cable horizontal lifeline that meets the Code's minimum standards?
1. No more than 2 workers
2. No more than 6 workers
3. No more than 4 workers
4. Any number, depending on length
4.When is eye and face protection required?
1. Only when the worker wears prescription glasses
2. Only for welders with more than five years of experience
3. When the eyes are exposed to flying particles, molten metal or intense light
4. Only when the work is done outdoors in full sun during the summer
5.When may a ladder be used as a work station instead of a scaffold?
1. For any work done by one person
2. For jobs lasting less than one hour
3. For any work less than 6 m up
4. For jobs lasting less than one day
6.How far must shoring extend above the excavation?
1. 1 m
2. It must be flush with the ground
3. 50 mm
4. 300 mm
7.Which of these must a personnel lifting device have?
1. A loud horn that plays a tune during each lift
2. A seat reserved for the foreman right next to the control panel
3. Dead-man controls and an emergency stop button within reach
4. A counter showing the number of lifts since purchase
8.Where must a hazardous product's safety data sheet be kept?
1. In the foreman's truck, for his use only
2. With the supplier, who sends it only on the employer's written request
3. At the workplace, easy for any worker to reach
4. At head office, in a locked filing cabinet
9.After a refusal, who must the supervisor call in to examine the situation?
1. A doctor appointed by the CNESST to examine the worker
2. The police officer of the town where the site is located
3. The maker of the equipment involved, if reachable by phone the same day
4. The health and safety representative or, failing that, the person set out in the Act
10.A three-storey building is going up 1.5 m from a sidewalk. What public protection is required?
1. None, if work is done in daytime
2. A "Construction" sign at the gate
3. A covered walkway
4. Just a strip of warning tape
11.What is the first step of lockout under the Code?
1. Putting your padlock on the isolation point
2. Checking that the machine will no longer start up
3. Deactivating the machine and stopping it completely
4. Removing the guards to reach the part
12.A worker removes a saw guard because it "slows the work down". What does the Code provide?
1. Removal is allowed for cuts that take less than a minute each
2. Moving parts must stay protected by a firmly attached device
3. Removal is allowed if an experienced co-worker watches the saw for the whole cut
4. Removal is allowed if the worker has more than ten years of experience
13.What does the Code require for workers who handle loads?
1. They must be taught how to lift and carry loads
2. They must wear leather gloves and a back belt at all times on site
3. They must have at least five years in the trade
4. They must pass a strength test every year
14.How does the signaller communicate with the driver during a 25 m backing manoeuvre?
1. By whistle blasts heard across the site
2. By hand signals, since it is over 10 m
3. By two-way radio communication
4. By shouting, while standing behind the truck
15.In the general case, from what fall height must a worker be protected?
1. More than 10 m
2. More than 1 m
3. More than 3 m
4. More than 6 m
16.A foreman wants to deal with dust by handing out masks only, although a vacuum at the source is possible. What does the law say?
1. The choice between masks and a vacuum depends only on the lowest cost
2. The mask always comes first, because it protects each worker directly
3. The law requires nothing as long as workers agree to wear a mask
4. Eliminating the hazard at the source comes before personal protective equipment
17.How often, at minimum, must an experienced person examine a scaffold?
1. At least once every 5 years
2. Only when it is put up
3. At least once every 3 months
4. At least once a year
18.A reading shows 18% oxygen in a tank. May a worker with a respirator enter for normal work?
1. Yes, since he is wearing a compliant respirator that meets current standards
2. No, entry is banned below 19.5% oxygen, even with a respirator
3. Yes, if he stays inside for less than fifteen minutes
4. Yes, if a co-worker watches him from the tank opening
19.What minimum age does the Code set for work done with a powered lifting device?
1. 16
2. 25
3. 21
4. 18
20.Under the Code, where should airborne contaminants be eliminated first?
1. At their point of origin
2. In the worker's lungs, through medical tests
3. At the site exit, with a central filter
4. In the trailer, with an air purifier
21.A roofer refuses to work on a roof with a compliant guardrail, only because it is high up. Why can this refusal be rejected?
1. A refusal must be announced in writing 24 hours ahead
2. The conditions are normal for that kind of work
3. A roofer needs the union's approval before refusing
4. The right to refuse never applies to work done on roofs
22.On a hot day, a worker wants to take off his T-shirt on site. What does the Code say?
1. It is allowed if he drinks plenty of water
2. It is allowed after 3 p.m., when it gets hot
3. The torso and back must be fully covered at all times
4. It is allowed if he wears a harness and a vest over it
23.Under the Construction Safety Code, what does lockout mean?
1. Hanging a "Do not use" tag on a machine's control panel without cutting the power
2. Putting a single-key padlock on the isolating device of an energy source
3. Locking the site trailer at the end of the work day
4. Locking power tools in a box to prevent theft
24.Which type of portable fire extinguisher does the Code require on sites?
1. A charged, ULC-listed ABC extinguisher
2. A Class K kitchen extinguisher
3. A water-only extinguisher by the door
4. A bucket of sand by the exit
25.What limit does the Code set for peak sound pressure, for example from an impact noise?
1. 180 dBC
2. 85 dBC
3. 110 dBC
4. 140 dBC
26.Which vehicles need a self-resetting back-up alarm?
1. Only vehicles that move around the site at night, after dark, without lights
2. Only service vans that carry workers
3. Only vehicles bought new less than five years ago
4. Earthmoving machines, trucks rated 2,250 kg or more and vehicles with a blocked rear view
27.What minimum breaking strength must a single anchor point have if not designed by an engineer?
1. 18 kN
2. 2.22 kN
3. 90 kN
4. 6 kN
28.A worker wears a neck chain near a running concrete mixer. What does the Code say?
1. It is allowed if the chain is tucked under his T-shirt
2. Necklaces, bracelets and rings are banned near moving parts
3. It is allowed if the machine has a guard in good condition
4. It is allowed if the chain is real gold or silver and quite strong
29.A ladder rung is cracked. What must be done?
1. Mark the cracked rung with paint and tell people to step over it
2. Take the ladder out of service until repaired, with no splints or lashing
3. Tape the rung and keep using the ladder carefully
4. Use the ladder only to climb down, never to climb up with a load
30.May a 17-year-old apprentice work at the bottom of a trench?
1. Yes, if the trench is under 3 m
2. Yes, if a journeyman is with them
3. Yes, if they passed the 30-hour course
4. No, this work is banned for anyone under 18
31.What does the Code say about moving loads over workers?
1. It is allowed if the crane operator honks before passing over them
2. No load may pass over their heads, and no one may stand under a load
3. It is allowed if the workers wear hard hats meeting CSA Z94.1
4. It is allowed if the load weighs less than half the rated load shown on the device
32.From what concentration is a material considered to contain asbestos?
1. 1%
2. 0.1%
3. 5%
4. 10%
33.A worker believes a task would endanger a co-worker working below. May they refuse to do it?
1. Only if the co-worker has already refused the work themselves
2. Only if the co-worker in danger first gives written consent
3. No, the right to refuse only protects the person doing the task
4. Yes, the right also covers a similar danger to another person
34.A learner passed the final exam but missed one module and never made it up. What does ASP Construction's rule say?
1. They get a temporary card valid one year so they can make up the missed module later
2. The card goes only to those who attended the whole course and passed the exam
3. The card is issued if they attended at least 80% of the scheduled hours
4. The card is issued anyway, since the final exam was passed
35.What does "single-key" mean for a lockout padlock?
1. The padlock opens with only one key
2. The padlock opens with the contractor's master key
3. The padlock has a four-digit combination code
4. The padlock is used once, then thrown away
36.Where is it forbidden to use an internal combustion engine?
1. On a site with fewer than ten workers at once
2. In an outdoor parking area on site
3. Near flammable or explosive dust or vapours
4. Within 10 m of a site office
37.Moving a heavy load by hand is dangerous. What must the employer do?
1. Let the worker choose the method alone, based on their strength
2. Require the worker to wear a back belt for the whole move
3. Ask two more workers to lift the load together by hand
4. Make mechanical devices available to the workers
38.When is a cab or protective frame required on a self-propelled vehicle?
1. Only when the vehicle travels on a public road, off the site
2. When the driver could be hurt by flying or falling objects
3. Only when the temperature drops below zero
4. Only when the vehicle is more than ten years old
39.A safety net must limit free fall to what maximum height?
1. 15 m
2. 2 m
3. 10 m
4. 6 m
40.What footwear must everyone wear on a construction site?
1. Grade 3 footwear, but only for demolition and excavation work
2. Closed running shoes, if the person does not carry heavy loads
3. Grade 1 protective footwear meeting CSA Z195
4. Waterproof boots of any brand, with or without a protective toe cap
41.An unsecured ladder is 10 m long. What extra measure does the Code require?
1. It must be painted yellow to be easy to see on the site
2. One or more people must hold it firmly in place
3. It must be spliced end to end to a shorter ladder to make it stronger
4. Only one worker under 80 kg may use it at a time
42.When workers are in a trench, who or what must be at the surface?
1. A running excavator, ready to dig an emergency exit
2. An experienced person watching for cracks and cave-ins
3. A red flag at each end of the trench
4. A sign showing the general contractor's name and the city permit number
43.In which direction should a load normally be lifted?
1. By dragging it
2. At a 45° angle
3. Vertically
4. As fast as possible
44.In Québec, in which language must a hazardous product's label and safety data sheet be written?
1. In whatever language the supplier chooses, based on its home country
2. In French, with a translation allowed if it does not prevail over the French
3. In English only, since most chemical makers are based outside Québec
4. In the first language of the worker who uses the product
45.If the disagreement continues after the examination, who decides whether a danger justifies the refusal?
1. The 30-hour course trainer
2. The site's principal contractor
3. The site committee, by a vote
4. The CNESST inspector
46.An electrician works alone at a remote station with no way to call for help. What must the employer do?
1. Nothing special, if the electrician has passed the 30-hour course
2. Have him phone the CNESST at the start and end of every day
3. Ban all work until a second electrician is hired for the station
4. Set up an effective check-in system, continuous or at intervals
47.What should appear on a single-key padlock put on by a worker?
1. Nothing, to protect the privacy of the worker who put it on
2. The machine's serial number and its date of manufacture
3. The purchase price and the store where it was bought
4. The name of the person who installed it, unless a register is kept
48.A gas generator runs inside a closed building, and the mechanical ventilation fails. What should be done?
1. Keep going if the workers wear dust masks
2. Shut the engine off right away until ventilation is back
3. Open a door and let the generator keep running until the next break
4. Run the engine at half speed until the end of the day
49.What daily noise exposure limit does the Code set?
1. 85 dBA over an 8-hour day
2. 90 dBA over a 10-hour day
3. 70 dBA over an 8-hour day
4. 100 dBA over an 8-hour day
50.Who is responsible for putting up signs, including speed limits, on the site?
1. The town where the site is
2. Each truck driver
3. The principal contractor
4. The ready-mix concrete supplier

Answer key with explanations

1. A — Theory and hands-on training on choosing, fitting, inspecting and maintaining them
Section 2.21.12 requires theory and practical training: choosing, fitting, inspecting and maintaining protectors, the risks of noise, wearing them for the whole exposure and how noise is assessed.
Manual handling and noise · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 4 Manual handling and noise, CSTC s. 2.21.12
2. A — Backing in a no-pedestrian backing area or being guided all the way by a signaller
Section 2.8.5 requires the reversing to be done in a backing area where no one walks, or with a site signaller who guides the driver throughout.
Site traffic and vehicles · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 7 Site traffic and vehicles, CSTC s. 2.8.5
3. A — No more than 2 workers
A horizontal lifeline meeting the minimum standards (steel cable at least 12 mm, no more than 12 m between end anchors) is used by at most 2 workers at a time, unless designed by an engineer.
Fall protection · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 9 Fall protection, CSTC s. 2.10.15
4. C — When the eyes are exposed to flying particles, molten metal or intense light
Section 2.10.5 requires protection meeting CSA Z94.3 when the eyes or face are exposed to moving particles, hazardous substances, intense light or heat, molten metal or similar risks, whatever the trade or experience.
Personal protective equipment · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 3 Personal protective equipment, CSTC s. 2.10.5
5. B — For jobs lasting less than one hour
Section 3.9.1 requires a scaffold where workers cannot work safely from the ground or a solid base; ladders are allowed for jobs lasting less than an hour.
Ladders and scaffolds · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 10 Ladders and scaffolds, CSTC s. 3.9.1
6. D — 300 mm
Shoring extends 300 mm above the excavation to stop soil and objects from falling into the trench (except some trenches on public roads).
Excavations and confined spaces · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 12 Excavations and confined spaces, CSTC s. 3.15.3
7. C — Dead-man controls and an emergency stop button within reach
Section 2.15.12 requires dead-man controls, an emergency stop button within reach of the people carried and a device that stops the platform from dropping if power fails.
Lifting equipment for loads and workers · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 11 Lifting equipment for loads and workers, CSTC s. 2.15.12
8. C — At the workplace, easy for any worker to reach
Section 62.6 requires the employer to keep the SDS and make it easy for any worker to consult at the workplace, and to send a copy to the health and safety committee or representative.
Contaminants, asbestos and WHMIS · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 8 Contaminants, asbestos and WHMIS, OHS Act s. 62.6
9. D — The health and safety representative or, failing that, the person set out in the Act
The supervisor calls in the health and safety representative; if there is none, a representative of the certified association or a worker chosen by the person refusing takes their place. A doctor, the maker or the police do not do this examination.
Prevention principles, rights and duties · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 1 Prevention principles, rights and duties, OHS Act s. 16
10. C — A covered walkway
If work is on more than one storey and the sidewalk is less than 2 m from the site, a covered walkway separates the site from the public. At 2 m or more, a protective wall is enough where pedestrians are at risk.
Construction sites: rules and organization · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 2 Construction sites: rules and organization, CSTC s. 2.7.1
11. C — Deactivating the machine and stopping it completely
The steps are: deactivate and fully stop the machine; eliminate or control residual energy; lock the isolation points; verify the lockout; then remove locks and restart safely.
Electricity and lockout · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 5 Electricity and lockout, CSTC s. 2.20.7
12. B — Moving parts must stay protected by a firmly attached device
Safety devices must protect moving parts and be firmly attached. There is no exception for experience, cut length or a co-worker watching.
Tools, machines and fire prevention · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 6 Tools, machines and fire prevention, CSTC s. 3.10.13
13. A — They must be taught how to lift and carry loads
The Code requires material handlers to be instructed in how to lift and carry loads. It sets no strength test, minimum experience or mandatory gloves for all handling.
Manual handling and noise · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 4 Manual handling and noise, CSTC s. 3.16.8
14. C — By two-way radio communication
When a signaller directs reversing, they use two-way telecommunication (radio). The hand signals set out in the plan are allowed only when the vehicle reverses less than 10 m.
Site traffic and vehicles · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 7 Site traffic and vehicles, CSTC s. 2.8.5
15. C — More than 3 m
Section 2.9.1 requires fall protection if a worker could fall more than 3 m. Some situations require protection at lower heights.
Fall protection · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 9 Fall protection, CSTC s. 2.9.1
16. D — Eliminating the hazard at the source comes before personal protective equipment
The Act aims to eliminate hazards at the source, and protective equipment must not reduce that effort. The Code also requires removing contaminants at their point of origin; respirators are for when limits cannot be met.
Personal protective equipment · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 3 Personal protective equipment, OHS Act s. 3; CSTC s. 2.10.8
17. C — At least once every 3 months
Scaffolds are examined at least every 3 months, and also after a failure, after abnormal stress or an incident, and before reuse after a long stop in the work.
Ladders and scaffolds · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 10 Ladders and scaffolds, CSTC s. 3.9.12
18. B — No, entry is banned below 19.5% oxygen, even with a respirator
Section 3.21.2 bars any worker, even with a respirator, from entering a confined space where oxygen is below 19.5% or above 23%. Only an emergency allows an exception, with special training.
Excavations and confined spaces · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 12 Excavations and confined spaces, CSTC s. 3.21.2
19. D — 18
Under section 2.15.10, no work with a powered lifting device may be done by a worker under 18 years old.
Lifting equipment for loads and workers · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 11 Lifting equipment for loads and workers, CSTC s. 2.15.10
20. A — At their point of origin
Section 2.10.8 requires airborne contaminants to be eliminated at their point of origin to meet the limits in the Regulation respecting occupational health and safety. This is control at the source.
Contaminants, asbestos and WHMIS · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 8 Contaminants, asbestos and WHMIS, CSTC s. 2.10.8
21. B — The conditions are normal for that kind of work
A worker cannot refuse when the conditions are normal for the kind of work they do. A roof with a compliant guardrail is a normal condition for a roofer. There is no roof exclusion, notice period or union approval in the Act.
Prevention principles, rights and duties · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 1 Prevention principles, rights and duties, OHS Act s. 13
22. C — The torso and back must be fully covered at all times
Under section 2.4.2 (b), every worker on a site wears clothing that fully covers the torso and back at all times. There is no exception for heat, time of day or a safety vest.
Construction sites: rules and organization · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 2 Construction sites: rules and organization, CSTC s. 2.4.2 (b)
23. B — Putting a single-key padlock on the isolating device of an energy source
The Code defines lockout as installing a single-key padlock on the isolating device of an energy source or on a lockout box. A tag alone does not control the energy.
Electricity and lockout · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 5 Electricity and lockout, CSTC s. 2.20.1
24. A — A charged, ULC-listed ABC extinguisher
Portable extinguishers must be ULC-listed ABC units, charged, easy to reach, and show the name of the person responsible for maintenance and the date of the last check.
Tools, machines and fire prevention · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 6 Tools, machines and fire prevention, CSTC s. 3.4.4
25. D — 140 dBC
The peak sound pressure limit is 140 dBC. The 85 dBA limit applies to daily exposure, not to peaks.
Manual handling and noise · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 4 Manual handling and noise, CSTC s. 2.21.2
26. D — Earthmoving machines, trucks rated 2,250 kg or more and vehicles with a blocked rear view
Under section 3.10.12, a self-resetting back-up alarm is required on earthmoving machines, trucks with a rated capacity of 2,250 kg or more and vehicles used mainly on site whose rear view is blocked.
Site traffic and vehicles · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 7 Site traffic and vehicles, CSTC s. 3.10.12
27. A — 18 kN
A single anchor point has a breaking strength of at least 18 kN, or is designed and installed to an engineer's plan. 6 kN is the maximum arrest force of the fall-arrest connection.
Fall protection · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 9 Fall protection, CSTC s. 2.10.15
28. B — Necklaces, bracelets and rings are banned near moving parts
Under section 2.10.2, where there is a risk of contact with moving parts, necklaces, bracelets and rings are banned (except a medical bracelet fixed to the wrist), clothing is close-fitting and long hair is held under the hard hat.
Personal protective equipment · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 3 Personal protective equipment, CSTC s. 2.10.2
29. B — Take the ladder out of service until repaired, with no splints or lashing
A ladder with a broken or defective part is taken out of service until repaired, and must never be repaired with a splint or lashing. Ladders are stored dry and sheltered from the weather.
Ladders and scaffolds · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 10 Ladders and scaffolds, CSTC s. 3.5.9
30. D — No, this work is banned for anyone under 18
Section 3.15.10 bans all work in excavations and trenches for workers under 18, with no exception for depth, supervision or training.
Excavations and confined spaces · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 12 Excavations and confined spaces, CSTC s. 3.15.10
31. B — No load may pass over their heads, and no one may stand under a load
Section 3.10.4 requires that no load be over workers' heads and that no worker stand under a load or part of a lifting device that could fall on them. A hard hat does not protect against a falling load.
Lifting equipment for loads and workers · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 11 Lifting equipment for loads and workers, CSTC s. 3.10.4
32. B — 0.1%
Under section 3.23.0.1, a material or product contains asbestos when its asbestos concentration is at least 0.1%.
Contaminants, asbestos and WHMIS · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 8 Contaminants, asbestos and WHMIS, CSTC s. 3.23.0.1
33. D — Yes, the right also covers a similar danger to another person
The right to refuse applies if the work exposes the worker to danger or could expose another person to a similar danger. No consent or prior refusal by the co-worker is needed.
Prevention principles, rights and duties · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 1 Prevention principles, rights and duties, OHS Act s. 12
34. B — The card goes only to those who attended the whole course and passed the exam
ASP Construction issues the card to learners who attended the entire course and passed the final exam. An absence must be justified in writing to the trainer, and the learner must take the missed module.
Construction sites: rules and organization · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 2 Construction sites: rules and organization, ASP Construction, 30-hour course
35. A — The padlock opens with only one key
A single-key padlock is built so that only one key opens it. That way, nobody but the person who put it on can remove it.
Electricity and lockout · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 5 Electricity and lockout, CSTC s. 2.20.1
36. C — Near flammable or explosive dust or vapours
No internal combustion engine may be used near places with flammable or explosive dust or vapours. The other situations are not covered by this ban.
Tools, machines and fire prevention · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 6 Tools, machines and fire prevention, CSTC s. 3.10.17
37. D — Make mechanical devices available to the workers
Section 3.16.8 requires mechanical devices to be made available when moving a load by hand is dangerous. This is a measure at the source, before any individual solution.
Manual handling and noise · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 4 Manual handling and noise, CSTC s. 3.16.8
38. B — When the driver could be hurt by flying or falling objects
Section 3.10.10 requires a cab or protective frame if the driver could be injured by projectiles or falling objects or materials. The cab also gives the best possible visibility.
Site traffic and vehicles · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 7 Site traffic and vehicles, CSTC s. 3.10.10
39. D — 6 m
Section 2.9.3 requires the net to prevent a free fall of more than 6 m and to hold a 115 kg mass falling 6 m with a safety factor of 3. Its mesh is about 150 mm × 150 mm.
Fall protection · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 9 Fall protection, CSTC s. 2.9.3
40. C — Grade 1 protective footwear meeting CSA Z195
Section 2.10.6 requires Grade 1 protective footwear meeting CSA Z195 for everyone on a site. Ordinary boots or running shoes do not meet the standard.
Personal protective equipment · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 3 Personal protective equipment, CSTC s. 2.10.6
41. B — One or more people must hold it firmly in place
An unsecured ladder 9 m or longer must be held firmly by one or more people. Joining two ladders end to end is banned.
Ladders and scaffolds · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 10 Ladders and scaffolds, CSTC s. 3.5.6 (b)
42. B — An experienced person watching for cracks and cave-ins
Section 3.15.4 requires an experienced person posted at the surface to spot cracks, cave-ins or any other danger while workers are in the trench.
Excavations and confined spaces · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 12 Excavations and confined spaces, CSTC s. 3.15.4
43. C — Vertically
Loads are lifted vertically. An angled lift is allowed only when absolutely necessary, with precautions and in the presence of an employer's representative.
Lifting equipment for loads and workers · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 11 Lifting equipment for loads and workers, CSTC s. 2.15.6
44. B — In French, with a translation allowed if it does not prevail over the French
Section 62.4 of the Act requires the label, placard and SDS to be in French; translations may be added, but they must not prevail over the French text.
Contaminants, asbestos and WHMIS · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 8 Contaminants, asbestos and WHMIS, OHS Act s. 62.4
45. D — The CNESST inspector
An inspector can be called in, and the inspector decides as quickly as possible whether a danger exists. They may order a return to work or require corrections. The principal contractor and the site committee do not have this power.
Prevention principles, rights and duties · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 1 Prevention principles, rights and duties, OHS Act s. 19
46. D — Set up an effective check-in system, continuous or at intervals
Under section 3.22.1, when a worker works alone in an isolated place where they cannot ask for help, the employer sets up an effective monitoring method, continuous or intermittent. The CNESST is not a check-in service.
Construction sites: rules and organization · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 2 Construction sites: rules and organization, CSTC s. 3.22.1
47. D — The name of the person who installed it, unless a register is kept
The name of the person who installs the padlock must be clearly shown on it. The principal contractor may hand out unnamed padlocks if it keeps a register (padlock ID, person's name and phone number, date and time issued, and so on).
Electricity and lockout · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 5 Electricity and lockout, CSTC s. 2.20.11
48. B — Shut the engine off right away until ventilation is back
Under section 3.10.17, as soon as mechanical ventilation stops, any internal combustion engine is shut down and restarted only once ventilation works again. A dust mask does not protect against carbon monoxide.
Tools, machines and fire prevention · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 6 Tools, machines and fire prevention, CSTC s. 3.10.17
49. A — 85 dBA over an 8-hour day
Since section 2.21 was updated, the daily exposure limit is 85 dBA, normalized to 8 hours, and peak sound pressure is limited to 140 dBC.
Manual handling and noise · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 4 Manual handling and noise, CSTC s. 2.21.2
50. C — The principal contractor
The principal contractor installs signs, including maximum speeds, marks traffic routes and backing areas, and has dust controlled on the routes.
Site traffic and vehicles · Based on: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 7 Site traffic and vehicles, CSTC s. 2.8.1

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

FAQ

ASP Construction exam questions (printable PDF): common questions

Is there an official ASP Construction exam PDF?

No. ASP Construction does not publish its final exam; learners study from the course manual given in class. This sheet is original practice written from the Construction Safety Code and the OHS Act.

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ASP Construction does not publish the pass mark. As a practice target, aim for at least 40 out of 50 before your exam, and review every topic where you miss two or more questions.

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ASP Construction 30-Hour Course – Printable Questions and Answers