From how many workers on site at the same time must a prevention program be drawn up before work starts?
ASP Construction Exam: Construction sites: rules and organization
The principal contractor, notices of opening, prevention programs and site committees, the mandatory 30-hour course, public safety, housekeeping and working alone.
- No sign-up
- Every answer explained
- Independent · not a government site
- 14 questions
- Topic drill
Study reference: Québec Construction Safety Code (CSTC), OHS Act (LSST) and ASP Construction (Oct 2026), Ch. 2 Construction sites: rules and organization — LSST ss. 196–206; CSTC ss. 2.4.1, 2.4.2, 2.4.4, 2.7.1, 3.2, 3.18.1, 3.22.1
All 14 questions in this test
Every question and its answer choices. The correct answers and explanations appear when you take the test above.
From how many workers on site at the same time must a prevention program be drawn up before work starts?
- At least 500 workers
- At least 10 workers
- At least 50 workers
- At least 5 workers
An electrician works alone at a remote station with no way to call for help. What must the employer do?
- Nothing special, if the electrician has passed the 30-hour course
- Have him phone the CNESST at the start and end of every day
- Ban all work until a second electrician is hired for the station
- Set up an effective check-in system, continuous or at intervals
On a hot day, a worker wants to take off his T-shirt on site. What does the Code say?
- It is allowed if he drinks plenty of water
- It is allowed after 3 p.m., when it gets hot
- The torso and back must be fully covered at all times
- It is allowed if he wears a harness and a vest over it
A learner passed the final exam but missed one module and never made it up. What does ASP Construction's rule say?
- They get a temporary card valid one year so they can make up the missed module later
- The card goes only to those who attended the whole course and passed the exam
- The card is issued if they attended at least 80% of the scheduled hours
- The card is issued anyway, since the final exam was passed
Under the Code, what must every worker on a site know?
- The names of all the site's material suppliers
- The building permit number issued by the city
- The emergency measures for a fire, explosion or accident
- The budget planned for each stage of the work
Under the Code, what is the maximum distance between the work area and the toilets?
- 150 m
- 1 km
- 500 m
- 50 m
Before demolishing a building, how far ahead must the principal contractor send a demolition notice to the CNESST?
- At least 7 days before demolition starts
- At least 48 hours ahead, except for a small building
- At least 30 days ahead, with a city permit attached
- No notice is needed if the opening notice was sent
How must waste produced on an upper floor be disposed of?
- Piled on the floor until the job ends, then carried down all at once by the stairs
- Thrown out a window after shouting a warning to the workers below
- Tossed into an open bin at the foot of the building with no other precaution
- Removed as work goes on, using containers, a closed chute or hoisting equipment
A site will have at least 20 workers at the same time. What is added to the prevention program?
- The site no longer needs a program, because the committee replaces it once formed
- The program is sent to the CNESST and a site committee is set up from the start
- The site must hire a full-time doctor for the whole length of the project
- Every worker must take the 30-hour course a second time before work starts
On a site, who is responsible for general measures such as housekeeping, toilets and temporary electrical installations?
- The supplier who delivers to the site most often
- Each worker, for their own work area only
- The principal contractor (maître d'œuvre)
- ASP Construction, which runs every site in Québec
Under Québec's Construction Safety Code, who must have passed the General health and safety on construction sites course?
- Site workers and the management and supervisory staff who usually work on the site
- Only workers who use scaffolds, cranes or motorized equipment on the site
- Only foremen and superintendents who lead a crew of more than ten workers on the site
- Only apprentices under 18 during their first year on a construction site
How many days before work starts must the principal contractor send the site opening notice to the CNESST?
- At least 10 days
- On the day work begins
- At least 2 days
- At least 30 days
Which of these is a role of the site committee?
- Issuing 30-hour course cards to site workers who passed the final exam
- Monitoring the prevention program and receiving workers' complaints
- Replacing the CNESST inspector in decisions on work refusals
- Fining employers who do not follow the Construction Safety Code
A three-storey building is going up 1.5 m from a sidewalk. What public protection is required?
- None, if work is done in daytime
- A "Construction" sign at the gate
- A covered walkway
- Just a strip of warning tape
Construction sites: rules and organization: key rules to remember
Our summary of what the official handbook says on this topic, in our own words. Read it before or after the practice questions above, then check the original chapter. Read the official chapter ↗
General health and safety on construction sites course (30-hour course)
- The course has 19 modules taught over 30 hours, followed by a final exam; all 19 modules must be completed before the exam.
- ASP Construction issues its card to learners who attended the entire course and passed the final exam.
- The recognized training organization gives a provisional certificate valid 12 weeks; the official card arrives by mail within at most 12 weeks.
- The 30-hour course card does not expire. A lost or unreadable card is replaced through a form, for $20 per card.
- There are no prerequisites; ASP Construction suggests taking the course from age 16. It is offered in French and English, and the manual also exists in Spanish.
- APSAM's "Travaux publics et construction" course is recognized as equivalent.
Employers' general duties
- The employer makes sure that management and supervisory staff who mainly and usually work on a site, and workers who had no recognized certificate on July 18, 2019, have passed the General health and safety on construction sites course.
- Every worker on a site wears clothing that fully covers the torso and back at all times.
- Games and competitions during work are banned.
- Each worker must know the Code, the equipment they are responsible for and the emergency measures for fire, explosion or accidents, and be warned of the risks of their own job.
Principal contractor, prevention program and site committee
- On the site, the principal contractor (maître d'œuvre) has the same duties toward construction workers as an employer.
- It sends the CNESST a written opening notice at least 10 days before work begins, and a closing notice (except for major sites).
- It is responsible for general measures: traffic control, temporary electrical installation, housekeeping, toilets, public safety, site access, fire protection, permanent guardrails and temporary heating.
- If at least 10 workers will be on site at once, a prevention program is drawn up with the employers before work starts.
- If at least 20 workers will be on site at once, the program is sent to the CNESST before work starts, and a site committee is formed from the start.
- The site committee monitors the prevention program and receives complaints and suggestions, accident notices and inspection reports; it meets at least once every two weeks.
Public safety
- A covered walkway is required if work is on more than one storey and the sidewalk or road is less than 2 m from the site.
- If the sidewalk is 2 m or more away and pedestrians are at risk, a protective wall separates the site from the public.
Housekeeping
- The site, including access and exit routes, is kept in order; storage and waste must create no danger.
- Waste is never thrown from one level to another; it is removed as work goes on (containers, a closed chute to a bin, hoisting equipment for large items).
- Traffic routes are kept clear, free of snow, ice, oil and grease, and made slip-resistant.
- Minimum lighting: 50 lux on traffic routes, 250 lux for structural work (formwork, concreting, framing).
- Toilets are no more than 150 m from the work area and no more than 4 storeys above or below.
Demolition and working alone
- The principal contractor sends the CNESST a demolition notice and the demolition method at least 7 days before demolishing a building.
- 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.
Study the Construction sites: rules and organization rules as flashcards →
Other topics
- Prevention principles, rights and dutiesEliminating hazards at the source, the right to refuse dangerous work, protection against reprisals, and the duties of workers and employers under the OHS Act.
- Personal protective equipmentHard hats, safety footwear, eye and face protection, gloves, clothing near moving parts, flotation devices and who pays for protective equipment.
- Manual handling and noisePreventing musculoskeletal injuries when lifting and carrying loads, and the noise limits, control measures and hearing protection rules.
- Electricity and lockoutGrounded or double-insulated tools, extension cords, and the lockout and energy-control rules for working in a machine's danger zone.
- Tools, machines and fire preventionMachine guards, grinding wheels, engines indoors, repairs on raised parts, temporary heating, welding and cutting, and fire extinguishers on site.
- Site traffic and vehiclesThe traffic plan, reversing manoeuvres and back-up areas, the site signaller, driver permits, horns and back-up alarms, and riding on equipment.
- Contaminants, asbestos and WHMISControlling airborne contaminants at the source, respirators, asbestos work categories, dust control, and WHMIS 2015 labels, safety data sheets and training.
- Fall protectionWhen protection is required, the order of protection measures, guardrails, warning lines, safety nets, harnesses, lanyards and anchors.
- Ladders and scaffoldsSetting up and using ladders and stepladders, when scaffolds are required, platforms and planks, erection, inspection, tying and use in bad weather.
- Lifting equipment for loads and workersRated loads, daily checks, rigging and tag lines, working under loads, signallers, minimum age, people lifts and mobile elevating work platforms (MEWPs).
- Excavations and confined spacesLocating utilities, shoring, spoil and vehicle setbacks, ladders and watchers in trenches, and the air-testing, ventilation and entry rules for confined spaces.