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📋 TL;DR — Quick Facts
If you’re preparing for your Canadian WHMIS 2015 certification exam, practicing with realistic questions is the fastest way to feel confident on test day. Below, you’ll find 23 real exam-style questions with answers and explanations covering every topic on the actual WHMIS exam — pictograms, Safety Data Sheets, worker rights, labels, hazard classes, and safe handling.
This guide was reviewed by a Canadian Health Inspector with over Food Safety Course Developer. Use it as your final study tool before booking your official WHMIS certificate, or take our full free practice test to simulate the real exam.
WHMIS stands for Workplace Hazardous Materials Information System. It is Canada’s national system for ensuring workers know about hazardous products in their workplace. Since 2015, WHMIS has been aligned with the international Globally Harmonized System (GHS), and the system is now known as WHMIS 2015.
Federal law under the Hazardous Products Act requires suppliers to classify and label hazardous products correctly. Provincial occupational health and safety (OHS) legislation — enforced by bodies like Ontario’s Ministry of Labour, WorkSafeBC, Alberta OHS, and Quebec’s CNESST — requires employers to train workers and ensure safe use.
| Exam Detail | What You Need to Know |
|---|---|
| Standard | WHMIS 2015 (aligned with GHS) |
| Format | Multiple-choice, 100% online |
| Time limit | No strict limit — typically 20–45 minutes |
| Device | Phone, tablet, or laptop |
| Retakes | Unlimited at no extra cost |
| Legal requirement | Federal (Hazardous Products Act) + provincial OHS laws |
The WHMIS 2015 certification exam tests your understanding of these core areas:
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Each question below mirrors the format and difficulty of the actual Canadian WHMIS 2015 certification exam. Each card shows the correct answer and explanation.
QUESTION 1 — WHAT WHMIS MEANS
What does WHMIS stand for?
A) Workplace Health and Management Information System
B) Workplace Hazardous Materials Information System
C) Worker Health Management Information Standard
D) Worker Hazardous Materials Information Safety
✓ Correct: B — WHMIS = Workplace Hazardous Materials Information System. It is Canada’s national system for identifying and communicating hazards in the workplace.
QUESTION 2 — WORKER RIGHTS
Under Canadian workplace safety law, workers have three fundamental rights. Which of the following is NOT one of them?
A) The right to know about hazards in the workplace
B) The right to participate in health and safety decisions
C) The right to refuse unsafe work
D) The right to paid leave for safety training
✓ Correct: D — The three fundamental worker rights under Canadian OHS law are: the right to know, the right to participate, and the right to refuse unsafe work. Paid leave is not a WHMIS right.
QUESTION 3 — SDS
What does SDS stand for in WHMIS?
A) Safe Disposal Sheet
B) Safety Data Sheet
C) Standard Delivery Sheet
D) Secondary Danger Statement
✓ Correct: B (Safety Data Sheet) — Under WHMIS 2015, the SDS replaced the old MSDS (Material Safety Data Sheet). SDSs follow a standardized 16-section format.
QUESTION 4 — WHMIS 2015 STANDARD
WHMIS 2015 is aligned with which international system?
A) OSHA Standard
B) GHS (Globally Harmonized System)
C) ISO 45001
D) CCOHS Standards
✓ Correct: B (GHS) — The Globally Harmonized System of Classification and Labelling of Chemicals standardizes hazard communication internationally. Canada, the US, the EU, and most major economies have adopted GHS.
QUESTION 5 — PICTOGRAM SHAPE
What shape is a WHMIS hazard pictogram?
A) Square with yellow background
B) Circle with red border
C) Red square-on-point (diamond) border with a black symbol
D) Triangle with black border
✓ Correct: C — All GHS/WHMIS 2015 pictograms are red square-on-point (diamond-shaped) borders with a black symbol on a white background. The red border is what distinguishes them.
QUESTION 6 — FLAME PICTOGRAM
The flame pictogram on a WHMIS label indicates the product is:
A) Hot to touch
B) Flammable
C) Radioactive
D) Toxic
✓ Correct: B (Flammable) — The flame pictogram identifies flammable gases, liquids, solids, and self-reactive substances. Keep away from heat, sparks, and open flames.
QUESTION 7 — SUPPLIER LABEL
A supplier label is found on:
A) Containers of hazardous products as received from the supplier
B) Secondary containers used in the workplace
C) Storage room doors
D) Employee uniforms
✓ Correct: A — Supplier labels are applied by the manufacturer and must appear on every hazardous product when it arrives at the workplace. They must include six required elements.
QUESTION 8 — WORKPLACE LABEL
When must a workplace label be used?
A) When a hazardous product is transferred from its supplier container into another container
B) Only on the outside of the building
C) Only for training purposes
D) Only when a supplier label is lost
✓ Correct: A — A workplace label is required whenever a hazardous product is transferred to a different container, or if the original supplier label becomes damaged or illegible.
QUESTION 9 — SDS SECTIONS
How many standardized sections are required on a Safety Data Sheet under WHMIS 2015?
A) 8
B) 12
C) 16
D) 20
✓ Correct: C (16 sections) — GHS-aligned SDSs must have 16 standardized sections covering identification, hazards, composition, first-aid, firefighting, handling, exposure controls, and more.
QUESTION 10 — SIGNAL WORD
Which of the following is a signal word used on WHMIS labels?
A) Stop
B) Danger
C) Careful
D) Emergency
✓ Correct: B (Danger) — WHMIS 2015 uses two signal words: “Danger” (for more severe hazards) and “Warning” (for less severe hazards).
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QUESTION 11 — CORROSION PICTOGRAM
What does the corrosion pictogram (a hand and a surface being eaten away) indicate?
A) The product causes skin or eye burns and can damage metals
B) The product has expired
C) The product causes rust
D) The product is mildly irritating
✓ Correct: A — The corrosion pictogram identifies products that cause skin burns, eye damage, or are corrosive to metals. Always wear appropriate PPE.
QUESTION 12 — EXPLODING BOMB PICTOGRAM
The exploding bomb pictogram warns of:
A) Compressed gas
B) Flammable liquids
C) Explosive hazards and self-reactive substances
D) Corrosive materials
✓ Correct: C — The exploding bomb pictogram indicates explosives, self-reactive substances, and organic peroxides.
QUESTION 13 — TRAINING RESPONSIBILITY
Who is responsible for providing WHMIS training to employees in Canada?
A) The employee’s union
B) The employer
C) The provincial government
D) The product supplier
✓ Correct: B (The employer) — Under provincial OHS laws, employers are legally responsible for ensuring every worker receives WHMIS education and workplace-specific training.
QUESTION 14 — WHEN TO UPDATE TRAINING
WHMIS training should be updated when:
A) Once every 10 years
B) Only when employees request it
C) When new hazardous products are introduced or workplace conditions change
D) Only during annual inspections
✓ Correct: C — Training must be refreshed whenever new products are introduced, processes change, a worker is assigned to a new task, or when an employer has reason to believe knowledge has lapsed.
QUESTION 15 — SDS ACCESS
Where must Safety Data Sheets be accessible in the workplace?
A) Locked in the manager’s office
B) Readily available to all workers who may be exposed to the product
C) Only at head office
D) Only during scheduled safety meetings
✓ Correct: B — SDSs must be readily available — in paper or electronic form — at every site where workers may be exposed to hazardous products.
QUESTION 16 — PRECAUTIONARY STATEMENT
A precautionary statement on a WHMIS label describes:
A) The hazards of the product
B) Recommended measures to prevent or minimize harm
C) First aid instructions only
D) Product disposal fees
✓ Correct: B — Precautionary statements tell you how to safely handle, store, dispose of, and respond to exposure — e.g., “Wear protective gloves,” “Store in a cool, well-ventilated place.”
QUESTION 17 — DAMAGED LABEL
A container of hazardous product arrives with a damaged, unreadable supplier label. What should you do?
A) Use the product if you know what it is
B) Contact the supplier for a replacement label and do not use the product until it is properly labeled
C) Guess the contents based on colour
D) Make your own label based on smell
✓ Correct: B — Never use a hazardous product without proper labeling. Contact the supplier for a replacement, or apply a compliant workplace label using information from the SDS.
QUESTION 18 — WHO NEEDS WHMIS
WHMIS applies to:
A) All workplaces, even those without hazardous products
B) Only manufacturing facilities
C) Workplaces where workers may be exposed to hazardous products
D) Only chemistry labs
✓ Correct: C — WHMIS applies to every workplace where workers may be exposed to hazardous products, including offices, restaurants, schools, hospitals, warehouses, and manufacturing.
QUESTION 19 — EMPLOYER DUTIES
In addition to training, employers must:
A) Provide product samples to employees
B) Ensure hazardous products are properly labeled and that SDSs are accessible
C) Pay workers for reading SDSs
D) Remove all hazardous products from the workplace
✓ Correct: B — Employers must ensure every hazardous product is correctly labeled, maintain current SDSs, provide training, and supply appropriate PPE.
QUESTION 20 — HAZARDOUS PRODUCT DEFINITION
The term “hazardous product” under WHMIS refers to:
A) Any product in a glass container
B) A product that meets the criteria of a hazard class under the Hazardous Products Regulations
C) Only products labeled “Danger”
D) Only cleaning supplies
✓ Correct: B — Under the federal Hazardous Products Act and its Regulations, a hazardous product is one that meets defined physical, health, or environmental hazard criteria.
QUESTION 21 — HEALTH HAZARD PICTOGRAM
The “health hazard” pictogram (a human silhouette with a starburst on the chest) indicates:
A) Heart disease
B) Respiratory sensitization, carcinogenicity, or reproductive toxicity
C) Sunburn risk
D) Broken bones
✓ Correct: B — The health hazard pictogram covers long-term or serious health effects: respiratory sensitizers, carcinogens, mutagens, reproductive toxins, aspiration hazards, and target organ toxicity.
QUESTION 22 — SKULL AND CROSSBONES
The skull and crossbones pictogram indicates:
A) Explosive
B) Acute toxicity (fatal or toxic if swallowed, inhaled, or absorbed)
C) Flammable liquid
D) Environmental hazard
✓ Correct: B — The skull and crossbones warns of acute toxicity — substances that can cause serious harm or death from a single or short-term exposure.
QUESTION 23 — REFUSING UNSAFE WORK
If a worker believes a task involves unreasonable danger from a hazardous product, they:
A) Must complete the task and file a complaint later
B) Have the right to refuse the work and report the concern to their supervisor
C) Must complete the task with gloves on
D) Must resign and find a safer job
✓ Correct: B — Every Canadian worker has the right to refuse work they reasonably believe is unsafe. The concern must be reported to the supervisor, who investigates with the worker and the health & safety committee.
WHMIS is established under the federal Hazardous Products Act, but enforcement happens through provincial and territorial occupational health and safety (OHS) agencies:
| Province / Territory | OHS Authority |
|---|---|
| Ontario | Ministry of Labour, Immigration, Training and Skills Development |
| British Columbia | WorkSafeBC |
| Alberta | Alberta Occupational Health and Safety |
| Quebec | CNESST |
| Manitoba, Saskatchewan | Provincial Workplace Safety & Health agencies |
| Atlantic provinces | WorkSafeNB, Nova Scotia Labour, WorkplaceNL, PEI Workers Compensation Board |
| Territories | Workers’ Safety and Compensation Commission (YT, NT, NU) |
Our WHMIS certificate is recognized across all Canadian provinces and territories by employers, auditors, and OHS authorities.
Yes. The federal Hazardous Products Act combined with every provincial OHS law requires WHMIS training for workers who may be exposed to hazardous products. Employers are legally responsible for providing it.
Our WHMIS certificate is $12.95 — the most affordable in Canada. It includes unlimited exam retakes, an instant PDF certificate, and lifetime certificate storage. Get certified here →
WHMIS training has no single fixed expiry under federal law, but employers and provincial OHS authorities generally expect refresher training every 1–3 years — and whenever new hazardous products are introduced, workplace conditions change, or a worker is assigned to a new task.
Yes. Our course and practice test meet the current WHMIS 2015 standard, aligned with GHS — the system required in every Canadian workplace.
Yes. The full WHMIS course and exam work on any device — phone, tablet, or laptop. Most workers complete it in under an hour.
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Reviewed by Samira Ali
Canadian Health Inspector · Food Safety Course Developer
Jordan reviews all workplace safety content to ensure accuracy with Health Canada, CCOHS, and provincial OHS standards.
Last updated: April 2026 · Aligned with WHMIS 2015 / GHS and the federal Hazardous Products Act.