Cleaning and Janitorial Safety Course 2026

1. Question 1 of 25

   Under WHMIS, which workers must receive education and training from their employer?

   • AOnly supervisors and managers who work on the day shift
   • BOnly workers who ask for training in writing from their employer
   • COnly workers who have been on the job for more than a year
   • DAnyone who works with or may be exposed to a hazardous product
   Show answer

   Answer: D. Anyone who works with or may be exposed to a hazardous product

   WHMIS requires an education and training program for all workers who work with, or may be exposed to, a hazardous product.

2. Question 2 of 25

   Your WHMIS training at a new cleaning job should be about what?

   • AOnly how to order new cleaning supplies from the supplier
   • BThe products, labels and procedures at that workplace
   • COnly the history of the WHMIS system in Canada
   • DOnly the products your last employer used at their site
   Show answer

   Answer: B. The products, labels and procedures at that workplace

   CCOHS says employers must make sure workers receive training that is specific to their workplace.

3. Question 3 of 25

   A supplier label on a floor stripper must be in which languages?

   • AEnglish only
   • BAny language the supplier chooses
   • CEnglish and French
   • DThe language of the province only
   Show answer

   Answer: C. English and French

   WHMIS supplier labels must be in both English and French, on one label or on two separate labels.

4. Question 4 of 25

   Which signal words can appear on a WHMIS supplier label?

   • AHazard or Safe
   • BDanger or Warning
   • CCaution or Notice
   • DStop or Go
   Show answer

   Answer: B. Danger or Warning

   A WHMIS supplier label uses one of two signal words: Danger or Warning.

5. Question 5 of 25

   You fill spray bottles from a large jug of cleaner for the whole team to use this week. What do the bottles need?

   • AA copy of the receipt from the supplier
   • BNothing, since the large jug already has a label
   • CA coloured cap so people can tell them apart
   • DA full workplace label on each bottle
   Show answer

   Answer: D. A full workplace label on each bottle

   When a product is decanted and will be used later or by more than one person, each container needs a full workplace label.

6. Question 6 of 25

   What information does a WHMIS workplace label generally show?

   • AProduct name, safe handling information and a reference to the SDS
   • BThe price paid, the store it was bought from and the date of purchase
   • COnly the name of the worker who filled the container that day
   • DThe supplier's full sales history and the cleaning shift schedule
   Show answer

   Answer: A. Product name, safe handling information and a reference to the SDS

   A workplace label generally needs the product name, safe handling precautions and a reference to the safety data sheet.

7. Question 7 of 25

   The label on a bottle of cleaner has worn off and you cannot read it. What should you do?

   • ADo not use it, and ask your supervisor for a new label
   • BMix it with plenty of water so that it is weaker and safer
   • CUse it only on floors, where a mistake is less risky
   • DSmell it carefully to work out what it is
   Show answer

   Answer: A. Do not use it, and ask your supervisor for a new label

   Workers should not use a product that is unlabelled or has an unreadable label. The employer must provide a workplace label.

8. Question 8 of 25

   A safety data sheet for a cleaning product is divided into how many sections?

   • A4
   • B9
   • C25
   • D16
   Show answer

   Answer: D. 16

   A WHMIS SDS has 16 sections. Some sections may be left without details, but all headings must appear.

9. Question 9 of 25

   A co-worker splashed a cleaner on their skin. Which SDS section gives first-aid steps?

   • ASection 12
   • BSection 4
   • CSection 16
   • DSection 1
   Show answer

   Answer: B. Section 4

   Section 4 of an SDS covers first-aid measures.

10. Question 10 of 25

    Which SDS section tells you what gloves, goggles or other protective equipment to wear?

    • ASection 2
    • BSection 8
    • CSection 14
    • DSection 5
    Show answer

    Answer: B. Section 8

    Section 8 covers exposure controls and personal protection.

11. Question 11 of 25

    Where should safety data sheets be kept at your workplace?

    • ALocked in head office in another city or province
    • BReadily available to workers who use the products
    • CIn the garbage once the product has been opened and used
    • DOnly with the supplier, who sends them on request
    Show answer

    Answer: B. Readily available to workers who use the products

    Employers must make SDSs readily available to workers who are exposed to the product and to the health and safety committee or representative.

12. Question 12 of 25

    Your site uses a household glass cleaner bought at a grocery store. What is true under WHMIS?

    • AIt can be used in any way you like at work, because it is sold to the public in stores
    • BIt is excluded from WHMIS label and SDS rules, but you still need training to use it
    • CIt must be thrown out, since only industrial products are allowed at work
    • DIt needs a full SDS and a supplier label before anyone at work may use it
    Show answer

    Answer: B. It is excluded from WHMIS label and SDS rules, but you still need training to use it

    Consumer products are excluded from WHMIS supplier label and SDS rules, but CCOHS says workers should still get education and training to use them safely.

13. Question 13 of 25

    A washroom has stains on the mirror and the toilet. Is it safe to use bleach and an ammonia-based glass cleaner together?

    • ANo, because mixing them can release toxic gases
    • BYes, if you rinse between them for a few seconds
    • CNo, because together they cancel each other out and do nothing
    • DYes, if you use them in a large room
    Show answer

    Answer: A. No, because mixing them can release toxic gases

    Health Canada warns never to mix bleach with ammonia-based products such as glass cleaners, because toxic gases can form.

14. Question 14 of 25

    A co-worker suggests adding vinegar to bleach to make it work better. Why is this a bad idea?

    • AVinegar is an acid, and mixing it with bleach can release toxic gas
    • BVinegar is only harmful if it is heated on a stove first
    • CVinegar makes bleach smell much worse but is otherwise completely fine
    • DVinegar leaves stains on floors whenever it is mixed with bleach
    Show answer

    Answer: A. Vinegar is an acid, and mixing it with bleach can release toxic gas

    Health Canada lists acids such as vinegar among the products that must never be mixed with bleach.

15. Question 15 of 25

    Health Canada names which toxic gas as one that can form when bleach is mixed with other cleaners?

    • AChloramine
    • BCarbon dioxide
    • CHelium
    • DOxygen
    Show answer

    Answer: A. Chloramine

    Mixing bleach with other cleaning products can release toxic gases, including chloramine, which can be deadly.

16. Question 16 of 25

    How much diluted bleach should you mix for a cleaning job?

    • ATwice what you need, in case of spills
    • BA full bucket every time, and keep the rest for next week
    • CEnough for the whole month, stored in a drink bottle
    • DOnly as much as you need, and do not store leftovers
    Show answer

    Answer: D. Only as much as you need, and do not store leftovers

    Health Canada advises making only as much diluted bleach as you need and not storing leftovers.

17. Question 17 of 25

    Someone breathed in fumes from mixed cleaners and feels unwell. Who should you call and what should you have ready?

    • AThe building owner, with a copy of this week's cleaning schedule
    • BA Poison Centre or medical help, with the product label or container
    • CNobody, since fumes from cleaners always clear up on their own
    • DThe store that sold the product, with the receipt and the price paid for it
    Show answer

    Answer: B. A Poison Centre or medical help, with the product label or container

    Health Canada says to call a Poison Centre or your health care provider right away and have the product label or container ready.

18. Question 18 of 25

    A cleaner splashes into your eye. According to first aid advice cited by CCOHS, how long should you rinse?

    • AAbout 2 minutes
    • BAt least 15 minutes
    • CAbout 30 seconds
    • DUntil the stinging stops
    Show answer

    Answer: B. At least 15 minutes

    First aid advice cited by CCOHS is to rinse eyes exposed to toxic chemicals right away with lots of water for at least 15 minutes.

19. Question 19 of 25

    You wear contact lenses and get a chemical in your eye. What should you do first?

    • ARemove both lenses carefully before any water touches your eyes
    • BStart flushing right away without waiting to remove the lenses
    • CWait a few minutes to see if it hurts
    • DFind a mirror and check the eye before you rinse
    Show answer

    Answer: B. Start flushing right away without waiting to remove the lenses

    CCOHS says chemicals can be trapped under a lens, but you should not delay flushing to remove contact lenses.

20. Question 20 of 25

    You spill soapy water in a busy hallway. What should you do?

    • APut a sheet of paper over it
    • BClean it up right away and mark the wet area
    • CTell people about it at the end of your shift
    • DLeave it to dry on its own
    Show answer

    Answer: B. Clean it up right away and mark the wet area

    CCOHS says good housekeeping means cleaning all spills immediately and marking wet areas.

21. Question 21 of 25

    Your floor machine's cord must cross a walkway. How can you lower the trip risk?

    • APull the cord tight at knee height so people see it
    • BLeave it as it is, since people will notice it
    • CCover the cord or reroute it away from the walkway
    • DHide the cord under a loose rug or a floor mat
    Show answer

    Answer: C. Cover the cord or reroute it away from the walkway

    CCOHS advises keeping walkways clear and covering cables that cross them.

22. Question 22 of 25

    What does using routine practices mean when you clean washrooms?

    • AWearing gloves only when you can clearly see blood
    • BTreating all blood and body fluids as possibly infectious
    • CCleaning each washroom only once a week on the same set day each time
    • DUsing the same cloth for every room so nothing is wasted
    Show answer

    Answer: B. Treating all blood and body fluids as possibly infectious

    Routine practices assume that all blood, body fluids and soiled items may be infectious.

23. Question 23 of 25

    You wore gloves while cleaning a toilet. What should you do after taking them off?

    • AReuse the same gloves for the next washroom to save supplies
    • BClean your hands, since gloves do not replace hand hygiene
    • CNothing, because the gloves kept your hands completely clean
    • DWipe your hands on your uniform before the next job
    Show answer

    Answer: B. Clean your hands, since gloves do not replace hand hygiene

    CCOHS says gloves are single use and do not replace hand hygiene. Clean your hands before putting gloves on and after taking them off.

24. Question 24 of 25

    How should you carry a full garbage bag?

    • APressed down first with your hand or foot to make room
    • BHugged against your chest so it does not drop
    • CSwung over your shoulder
    • DHeld away from your body
    Show answer

    Answer: D. Held away from your body

    CCOHS advises not carrying garbage bags close to the body, because hidden needles or glass can cause injuries.

25. Question 25 of 25

    You are stuck by a needle while emptying a bin. What should you do?

    • ASqueeze the wound hard and then keep working until the end of your shift
    • BRinse it with running water, wash with soap and report it right away
    • CCover it with a small bandage and tell nobody, since most are harmless
    • DWait until your next shift to see if it heals before telling anyone
    Show answer

    Answer: B. Rinse it with running water, wash with soap and report it right away

    After a needlestick, rinse the area with running water, wash gently with soap and water, and report the incident to your employer right away.

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