TradeExamPro

WHMIS Practice Test (Canada)

Hazard classes and pictograms, supplier and workplace labels, safety data sheets and worker rights under WHMIS, aligned with GHS.

160 questions · 6 topics · free, no sign-up

Start practising

Mixed practice test

10 questions, graded as you go, with the reason for every answer. No sign-up.

Timed mock exam

50 questions in 60 minutes, drawn from every topic. No answers shown until the end, then a score, your weakest topics and a review of what you missed.

Practise by topic

Sample questions

GHS includes an environmental hazards group. How does WHMIS treat it?

  1. It was not adopted, so WHMIS does not require that classification
  2. It is mandatory, and every label must show the environment pictogram
  3. It applies only to products that are shipped by rail or by sea
  4. It replaces the health hazards group for products used outdoors
Show the answer

A. It was not adopted, so WHMIS does not require that classification

Canada did not adopt the GHS environmental hazards group into WHMIS. Suppliers may still show environmental information on labels and safety data sheets, but it is not required.

Reference: Health Canada, WHMIS and GHS; Hazardous Products Regulations (SOR/2015-17)

WHMIS was updated in 2015 to line up with which international system?

  1. The International Maritime Dangerous Goods Code for shipping goods by sea and inland water
  2. The Globally Harmonized System of Classification and Labelling of Chemicals
  3. The ISO 45001 standard for occupational health and safety management
  4. The NFPA 704 diamond system for emergency responders at fixed sites
Show the answer

B. The Globally Harmonized System of Classification and Labelling of Chemicals

WHMIS 2015 brought in the classification rules, label elements and 16-section safety data sheet of the Globally Harmonized System (GHS), which was developed by the United Nations. NFPA 704 is a separate North American emergency response marking and is not part of WHMIS.

Reference: Health Canada, WHMIS and GHS; Hazardous Products Regulations (SOR/2015-17)

A worker eats lunch at a workbench without washing after handling a lead-based product. Which route of entry is the main concern?

  1. Ingestion
  2. Inhalation
  3. Injection
  4. Absorption
Show the answer

A. Ingestion

Product on the hands is transferred to food and swallowed, which is ingestion. This is why eating, drinking and smoking are kept out of work areas and why hand washing matters.

Reference: CCOHS, How Workplace Chemicals Enter the Body

Which signal word is used for the more severe hazards?

  1. Warning
  2. Caution
  3. Notice
  4. Danger
Show the answer

D. Danger

Danger is used for the more severe hazard categories and Warning for the less severe ones. Caution is not a WHMIS signal word at all.

Reference: Hazardous Products Regulations (SOR/2015-17), Part 3 (labelling)

Which WHMIS pictogram is the only one that uses a round black border instead of a red diamond-shaped border?

  1. Gas cylinder
  2. Health hazard
  3. Biohazardous infectious materials
  4. Flame over circle
Show the answer

C. Biohazardous infectious materials

The biohazardous infectious materials pictogram is a black symbol inside a round black border. That class is a Canadian addition that is not part of GHS, so its pictogram kept a different look. All the other WHMIS pictograms use the red diamond-shaped border.

Reference: Hazardous Products Regulations (SOR/2015-17), Schedule 3 (pictograms) and Part 3

Exams this helps with

ExamWho runs itWhere
WHMIS readyProvincesCanada