Ontario JHSC Certification Part One Practice 2026: Practice test 3

1. Question 1 of 25

   When can the employer be directed to stop work in the bilateral process?

   • AWhen any worker on the shift asks for it
   • BWhen a certified member from each side agrees the danger exists
   • CWhen the supervisor is away on holiday
   • DWhen a customer complains about the work
   Show answer

   Answer: B. When a certified member from each side agrees the danger exists

   If both certified members agree after investigating, they may direct the employer to stop the work or the use of equipment.

2. Question 2 of 25

   After fixing the hazard, who can cancel a bilateral stop work direction?

   • AThe first worker who returns
   • BAny supervisor on the shift
   • COnly the certified members who gave it, or an inspector
   • DThe company's lawyer or owner
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   Answer: C. Only the certified members who gave it, or an inspector

   Sections 45(7) and 45(8) say only the issuing members or an inspector may cancel the direction.

3. Question 3 of 25

   The two certified members disagree about whether dangerous circumstances exist. What can happen?

   • AEither may ask an inspector, who gives a written decision
   • BThe committee is disbanded by the employer
   • CThe issue is dropped and work continues
   • DThe worker member's opinion always wins
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   Answer: A. Either may ask an inspector, who gives a written decision

   Under s. 45(6), either member may ask for an inspector, who investigates and gives both members a written decision.

4. Question 4 of 25

   When can a single certified member stop work alone, using the unilateral procedure?

   • AOnly on weekends, when supervisors are away
   • BAfter an OLRB declaration, or if the employer adopts it in writing
   • COnly in offices, not in plants or on sites
   • DAny time the member feels a stop is needed
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   Answer: B. After an OLRB declaration, or if the employer adopts it in writing

   Section 47 applies only where the Ontario Labour Relations Board has declared it, or the employer has voluntarily adopted it in writing.

5. Question 5 of 25

   A party believes a certified member used stop work powers recklessly or in bad faith. What can it do?

   • ARemove the member from the workplace forever
   • BComplain to the Ontario Labour Relations Board within 30 days
   • CFine the member directly
   • DNothing can be done
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   Answer: B. Complain to the Ontario Labour Relations Board within 30 days

   The board can hear the complaint and make any order it thinks fit, including decertifying the member. Its decision is final.

6. Question 6 of 25

   What must the employer do with the results of a workplace violence risk assessment?

   • AAdvise the committee or representative of the results
   • BShare them only with customers
   • CDestroy them after one year
   • DKeep the results secret from everyone
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   Answer: A. Advise the committee or representative of the results

   Section 32.0.3 requires the employer to share violence risk assessment results with the committee or representative, or with workers if there is none.

7. Question 7 of 25

   With whom must the employer develop the written workplace harassment program?

   • AWith the company's competitors
   • BWith the committee or health and safety representative
   • CWith nobody: the owner writes it alone
   • DWith the local police service
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   Answer: B. With the committee or health and safety representative

   Section 32.0.6 requires the harassment program to be written and developed in consultation with the committee or representative.

8. Question 8 of 25

   Must the employer give the committee the results of a harassment investigation?

   • AYes, but only the names of those involved
   • BNo, those results do not have to be provided to the committee
   • CYes, the full report every single time
   • DOnly if a newspaper asks to see them
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   Answer: B. No, those results do not have to be provided to the committee

   Section 32.0.7(2) says harassment investigation results and reports are not required to be shared with the committee under s. 25(2).

9. Question 9 of 25

   How often must workplace violence and harassment policies be reviewed?

   • AOnce every 10 years
   • BOnly when a new owner arrives
   • CNever
   • DAt least once a year
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   Answer: D. At least once a year

   Section 32.0.1 requires the employer to review the violence and harassment policies at least once a year, and update them when needed.

10. Question 10 of 25

    Which is one of the six hazard categories taught in Part One?

    • APsychosocial
    • BFinancial
    • CSeasonal
    • DPolitical
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    Answer: A. Psychosocial

    Part One groups hazards as physical, chemical, biological, musculoskeletal, psychosocial and safety hazards.

11. Question 11 of 25

    Which list shows the five contributing factors to hazards taught in Part One?

    • ASales, marketing, finance, legal and HR
    • BPeople, equipment, materials, environment and process
    • CMorning, noon, evening, night and weekends
    • DRoofs, walls, floors, doors and windows
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    Answer: B. People, equipment, materials, environment and process

    Part One teaches that hazards can come from people, equipment, materials, the environment and the work process.

12. Question 12 of 25

    What are the four steps of the hazard process in Part One?

    • APlan, buy, sell and close
    • BRecognize, assess, control and evaluate
    • CIgnore, delay, deny and forget
    • DReport, blame, fine and fire
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    Answer: B. Recognize, assess, control and evaluate

    Part One is built around recognizing hazards, assessing them, controlling them and evaluating the controls.

13. Question 13 of 25

    How is an occupational illness different from an occupational injury?

    • AAn illness can appear long after exposure; an injury usually comes from a sudden event
    • BInjuries never need to be reported to anyone
    • CThey are exactly the same thing under the Act
    • DIllnesses only happen at home, never at work
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    Answer: A. An illness can appear long after exposure; an injury usually comes from a sudden event

    Part One defines hazard, occupational injury and occupational illness. Illnesses often develop over time from exposure to agents like chemicals or dust.

14. Question 14 of 25

    Which is a route of entry by which a chemical can get into the body?

    • AStanding near a closed container
    • BBreathing it in (inhalation)
    • CLooking at the label
    • DReading the safety data sheet
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    Answer: B. Breathing it in (inhalation)

    Part One covers routes of entry: inhalation, skin absorption, ingestion and injection. Knowing the route helps the committee choose the right control.

15. Question 15 of 25

    In Part One, what does TWA stand for in exposure limits?

    • ATime-weighted average
    • BTotal workplace allowance
    • CTrained worker assessment
    • DToxic waste agent
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    Answer: A. Time-weighted average

    A time-weighted average limit is the average exposure allowed over a work shift. Part One covers TWA, STEL and ceiling limits.

16. Question 16 of 25

    What is a STEL?

    • AA standard employer training log
    • BA long-term limit for a whole career
    • CA steel-toed safety boot standard
    • DA short-term exposure limit for brief periods during a shift
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    Answer: D. A short-term exposure limit for brief periods during a shift

    A short-term exposure limit controls high exposures for a short period, even if the shift average is below the TWA.

17. Question 17 of 25

    What does a ceiling (C) exposure limit mean?

    • AA limit that applies only to work near the ceiling
    • BA level that must never be exceeded at any time
    • CA limit averaged over one year
    • DA suggested level that can be ignored
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    Answer: B. A level that must never be exceeded at any time

    A ceiling limit is the highest concentration allowed at any moment. Part One teaches it with TWA and STEL limits.

18. Question 18 of 25

    Which is a method of assessing a hazard taught in Part One?

    • AA customer survey
    • BA sales forecast
    • CA job hazard analysis
    • DA holiday schedule
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    Answer: C. A job hazard analysis

    Assessment methods include inspections, investigations, job hazard analysis, interviews, measurement and comparing against standards.

19. Question 19 of 25

    Which is an example of controlling a hazard at the source?

    • AGiving workers earplugs
    • BRotating workers away from the noise
    • CReplacing a noisy machine with a quieter one
    • DPosting a noise warning sign
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    Answer: C. Replacing a noisy machine with a quieter one

    Control at the source is the most effective point. Controls along the path and at the worker, such as PPE, come after.

20. Question 20 of 25

    Which of the five control types is the most effective?

    • AWarning signs
    • BAdministrative controls
    • CElimination
    • DPersonal protective equipment
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    Answer: C. Elimination

    Part One teaches the hierarchy of controls: elimination, substitution, engineering, administrative, then personal protective equipment.

21. Question 21 of 25

    Why does Part One teach evaluating controls after they are in place?

    • ATo check that the controls work and are still protecting workers
    • BTo raise the price of the company's products
    • CTo find a worker to blame for the hazard
    • DTo finish the committee's work for the year
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    Answer: A. To check that the controls work and are still protecting workers

    Evaluation is the last step of the hazard process. A control that does not work, or creates a new hazard, must be fixed.

22. Question 22 of 25

    A worker is killed or critically injured. What may the committee's designated worker members do?

    • AInvestigate and report findings to a Director and the committee
    • BDecide who is guilty of an offence under the Act
    • CNothing until the committee's next regular meeting
    • DClean up the scene right away so work can restart
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    Answer: A. Investigate and report findings to a Director and the committee

    Under s. 9(31), designated worker members investigate deaths and critical injuries and report in writing, subject to the rules on preserving the scene.

23. Question 23 of 25

    After a death or critical injury, how soon must the employer give a written report to a ministry Director?

    • ANo written report is needed
    • BWithin 1 year
    • CWithin 30 days
    • DWithin 48 hours
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    Answer: D. Within 48 hours

    Section 51 requires immediate notice to an inspector, the committee and the union, then a written report within 48 hours.

24. Question 24 of 25

    A worker needs medical attention after a workplace accident, with no critical injury. How soon must the employer give the committee written notice?

    • AWithin 4 hours
    • BWithin 4 months
    • CNo notice is needed
    • DWithin 4 days
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    Answer: D. Within 4 days

    Section 52 requires written notice within 4 days to the committee or representative and the union when a worker needs medical attention or cannot do their usual work.

25. Question 25 of 25

    An employer learns that a former worker has an occupational illness. Does the notice rule in s. 52 apply?

    • AYes, the 4-day notice applies to former workers as well
    • BOnly if the worker is under 18
    • COnly if the worker left last week
    • DNo, only current workers are covered
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    Answer: A. Yes, the 4-day notice applies to former workers as well

    Section 52(3) applies the occupational illness notice to former workers too. Illnesses can appear long after a worker leaves.

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

The real test: Part One ends with a standardized evaluation in a form acceptable to the ministry, with a 75% pass mark and at least one hour allotted. Your CPO-approved provider runs and marks it.