A highly toxic product spills and an escape respirator is required for your area. What should you do?
WHMIS Mock Exam 3
Same format as the real test. Answers stay hidden until you submit. The official time limit is not published; the timer is a practice setting.
- No sign-up
- Every answer explained
- Independent · not a government site
- 25 questions
- untimed
- Pass mark 20/25
All 25 questions in this test
Every question and its answer choices. The correct answers and explanations appear when you take the test above.
A highly toxic product spills and an escape respirator is required for your area. What should you do?
- Put on the escape respirator and leave the area
- Stay and wipe up the spill quickly
- Wait for the vapour to clear on its own
- Open a window and keep working
During a WHMIS workplace inspection, which question about labels is on CCOHS's sample checklist?
- Are all labels the same size on every product in stock?
- Are labels printed in a single colour?
- Are labels signed by each worker?
- Are decanted products not used immediately labelled?
How must hazardous waste containers be handled in an Ontario workplace?
- Clear identification plus worker education
- With a full supplier label and SDS
- With no identification at all
- Only with the original product label
In case of fire, how many exit paths should you know from your work area?
- Only the main entrance
- At least two
- One is enough
- None, if there is a sprinkler
Which type of Ontario workplace does Ontario's WHMIS legislation NOT apply to?
- Construction sites
- Farms
- Restaurants
- Hospitals
An SDS for an odourless liquid shows "Odour: not applicable." What does that mean?
- The section was left blank by mistake
- The item does not apply to this product
- The product has a dangerous odour
- The supplier could not find the data
A co-worker splashes a product in their eye. Which SDS section gives the first-aid steps?
- Section 4, First-aid measures
- Section 10, Stability and reactivity
- Section 13, Disposal considerations
- Section 6, Accidental release measures
How long must suppliers keep documents such as copies of labels, SDSs and sales records, unless another period is prescribed?
- Ten years
- One year
- Three years
- Six years
A drum is sitting in a trans-shipment warehouse, unchanged, waiting to be loaded for delivery. Which rules apply?
- Consumer product rules
- WHMIS workplace label rules
- No rules apply while it waits to be loaded
- Transportation of dangerous goods rules
A pictogram shows liquid dripping from containers onto a metal bar and onto a hand. What does it mean?
- The product is corrosive
- The product is under pressure
- The product is flammable
- The product is an oxidizer
Within the same hazard class, which category is the most hazardous?
- Category 3
- Category 1
- Category 2
- Category 4
Precautionary statements come in five types. Which list is correct?
- Danger, warning, caution, notice, info
- Physical, health, environmental, biological, other
- Supplier, employer, worker, inspector, committee
- General, prevention, response, storage, disposal
Which of these is a benefit CCOHS lists for aligning WHMIS with the GHS?
- Workers no longer need site-specific training
- Suppliers may choose any SDS layout they like
- Standardized hazard and precautionary statements
- Hazardous products no longer need labels
In the flame over circle pictogram, what does the circle represent?
- The sun
- A warning light
- Oxygen
- A drum
A cylinder of an oxidizing gas is leaking during a fire. What does CCOHS say about stopping the leak?
- Never touch the cylinder at all
- Always stop it, whatever the danger
- Stop it only if it is safe to do so
- Hit the valve to seal it
Which set of four questions shows that WHMIS training has worked?
- Hazards, protection, emergencies, where to find more info
- Colour, smell, taste, texture
- Price, supplier, expiry date, storage room
- Who ordered it, what it cost, when and why it was ordered
What is an aspiration hazard?
- A product that gives off a strong odour
- A product that can enter the lungs instead of the stomach
- A product that spreads infection by touch
- A product that catches fire on its own when exposed to air
A supplier sends a correct WHMIS label with the shipping papers but not on the container. Does this comply?
- Only for products in metal drums
- No, the label must be on or attached to the container
- Yes, as long as the papers arrive before the product does
- Yes, if the employer files the papers
Which two signal words are used on WHMIS labels?
- Danger and Warning
- Stop and Alert
- Hazard and Risk
- Caution and Notice
An SDS lists an ingredient by a generic name instead of its exact chemical name. What does this usually mean?
- The product is only sold outside Canada and needs no full SDS
- The supplier forgot to finish the SDS
- The ingredient is not hazardous at all
- The supplier claimed it as confidential business information
A corrosive liquid splashes onto a worker's clothing and skin. What should be done?
- Cover the area with a dry bandage and wait for help
- Remove soaked clothing and rinse skin with water
- Leave the clothing on until it dries
- Apply grease to the skin
Your SDS says a respirator is required. What must your employer make sure of?
- That you are trained in its selection, fit, use and care
- That you wear it only during inspections and safety audits
- That you buy your own respirator
- That you share one respirator per crew
What is the usual border of a WHMIS hazard pictogram?
- A green rectangle
- A red square set on one of its points
- A blue circle with a white edge
- A yellow triangle pointing up
Which signal word indicates the more severe hazard?
- Notice
- Caution
- Danger
- Warning
You were just hired and see a hazardous product you have never been trained on. What does WHMIS guidance say?
- Use it only if a co-worker is watching
- Use it carefully and read the label later
- Do not use it until you are trained in safe procedures
- Use it, since training can wait until the yearly review
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