Does this course count as my WHMIS training?

No. Under WHMIS, your employer must give you education and training on the hazardous products at your workplace and how to use them safely. This course is background knowledge only.

Can I mix two cleaners to make them stronger?

No. Health Canada warns that mixing bleach with ammonia, acids or toilet bowl cleaners can release toxic gases that can be deadly. Use one product at a time, as the label directs.

What should I do if I find a needle while cleaning?

Do not pick it up with your hands. Use a tool to grasp it, put it straight into a puncture-resistant sharps container, and report it.

Is het certificaat geaccrediteerd of officieel erkend?

Nee. Het is een privé bewijs van deelname, alleen voor je kennis. Het is niet erkend, geaccrediteerd of goedgekeurd door een overheid, vergunningsinstantie, toezichthouder of onderwijsinstelling, en het vervangt geen wettelijk verplichte vergunning, certificering of opleiding.

Cleaning and Janitorial Safety Course 2026

Vraag 1 van 25

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

Only supervisors and managers who work on the day shift
Only workers who ask for training in writing from their employer
Only workers who have been on the job for more than a year
Anyone who works with or may be exposed to a hazardous product

Toon antwoord

Antwoord: 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.

Vraag 2 van 25

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

Only how to order new cleaning supplies from the supplier
The products, labels and procedures at that workplace
Only the history of the WHMIS system in Canada
Only the products your last employer used at their site

Toon antwoord

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

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

Vraag 3 van 25

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

English only
Any language the supplier chooses
English and French
The language of the province only

Toon antwoord

Antwoord: C. English and French

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

Vraag 4 van 25

Which signal words can appear on a WHMIS supplier label?

Hazard or Safe
Danger or Warning
Caution or Notice
Stop or Go

Toon antwoord

Antwoord: B. Danger or Warning

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

Vraag 5 van 25

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

A copy of the receipt from the supplier
Nothing, since the large jug already has a label
A coloured cap so people can tell them apart
A full workplace label on each bottle

Toon antwoord

Antwoord: 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.

Vraag 6 van 25

What information does a WHMIS workplace label generally show?

Product name, safe handling information and a reference to the SDS
The price paid, the store it was bought from and the date of purchase
Only the name of the worker who filled the container that day
The supplier's full sales history and the cleaning shift schedule

Toon antwoord

Antwoord: 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.

Vraag 7 van 25

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

Do not use it, and ask your supervisor for a new label
Mix it with plenty of water so that it is weaker and safer
Use it only on floors, where a mistake is less risky
Smell it carefully to work out what it is

Toon antwoord

Antwoord: 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.

Vraag 8 van 25

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

4
9
25
16

Toon antwoord

Antwoord: D. 16

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

Vraag 9 van 25

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

Section 12
Section 4
Section 16
Section 1

Toon antwoord

Antwoord: B. Section 4

Section 4 of an SDS covers first-aid measures.

Vraag 10 van 25

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

Section 2
Section 8
Section 14
Section 5

Toon antwoord

Antwoord: B. Section 8

Section 8 covers exposure controls and personal protection.

Vraag 11 van 25

Where should safety data sheets be kept at your workplace?

Locked in head office in another city or province
Readily available to workers who use the products
In the garbage once the product has been opened and used
Only with the supplier, who sends them on request

Toon antwoord

Antwoord: 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.

Vraag 12 van 25

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

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

Toon antwoord

Antwoord: 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.

Vraag 13 van 25

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

No, because mixing them can release toxic gases
Yes, if you rinse between them for a few seconds
No, because together they cancel each other out and do nothing
Yes, if you use them in a large room

Toon antwoord

Antwoord: 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.

Vraag 14 van 25

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

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

Toon antwoord

Antwoord: 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.

Vraag 15 van 25

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

Chloramine
Carbon dioxide
Helium
Oxygen

Toon antwoord

Antwoord: A. Chloramine

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

Vraag 16 van 25

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

Twice what you need, in case of spills
A full bucket every time, and keep the rest for next week
Enough for the whole month, stored in a drink bottle
Only as much as you need, and do not store leftovers

Toon antwoord

Antwoord: 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.

Vraag 17 van 25

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

The building owner, with a copy of this week's cleaning schedule
A Poison Centre or medical help, with the product label or container
Nobody, since fumes from cleaners always clear up on their own
The store that sold the product, with the receipt and the price paid for it

Toon antwoord

Antwoord: 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.

Vraag 18 van 25

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

About 2 minutes
At least 15 minutes
About 30 seconds
Until the stinging stops

Toon antwoord

Antwoord: 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.

Vraag 19 van 25

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

Remove both lenses carefully before any water touches your eyes
Start flushing right away without waiting to remove the lenses
Wait a few minutes to see if it hurts
Find a mirror and check the eye before you rinse

Toon antwoord

Antwoord: 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.

Vraag 20 van 25

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

Put a sheet of paper over it
Clean it up right away and mark the wet area
Tell people about it at the end of your shift
Leave it to dry on its own

Toon antwoord

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

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

Vraag 21 van 25

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

Pull the cord tight at knee height so people see it
Leave it as it is, since people will notice it
Cover the cord or reroute it away from the walkway
Hide the cord under a loose rug or a floor mat

Toon antwoord

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

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

Vraag 22 van 25

What does using routine practices mean when you clean washrooms?

Wearing gloves only when you can clearly see blood
Treating all blood and body fluids as possibly infectious
Cleaning each washroom only once a week on the same set day each time
Using the same cloth for every room so nothing is wasted

Toon antwoord

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

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

Vraag 23 van 25

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

Reuse the same gloves for the next washroom to save supplies
Clean your hands, since gloves do not replace hand hygiene
Nothing, because the gloves kept your hands completely clean
Wipe your hands on your uniform before the next job

Toon antwoord

Antwoord: 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.

Vraag 24 van 25

How should you carry a full garbage bag?

Pressed down first with your hand or foot to make room
Hugged against your chest so it does not drop
Swung over your shoulder
Held away from your body

Toon antwoord

Antwoord: D. Held away from your body

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

Vraag 25 van 25

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

Squeeze the wound hard and then keep working until the end of your shift
Rinse it with running water, wash with soap and report it right away
Cover it with a small bandage and tell nobody, since most are harmless
Wait until your next shift to see if it heals before telling anyone

Toon antwoord

Antwoord: 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.

Cleaning and Janitorial Safety Course 2026

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