100+ Free WHMIS 2015 Practice Questions

Prepare for the WHMIS 2015 (GHS) Worker Certification Test (Canada) exam with instant access — no signup required.

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2026 Statistics

Key Facts: WHMIS 2015 Exam

100

Practice Questions

OpenExamPrep

Required SDS Sections (Schedule 1 order)

Hazardous Products Regulations / CCOHS

90 days

Supplier SDS Update After Significant New Data

CCOHS / HPR

180 days

Supplier Label Update After Significant New Data

CCOHS / HPR

~80%

Common Provider Course Pass Mark

Typical institutional/provider WHMIS courses

CAD $20–50

Typical Online Course Fee Range

Canadian WHMIS training provider market

WHMIS 2015 (GHS) worker certification is delivered by employers and accredited providers as an MCQ knowledge test—often about CAD $20–50 online with a common ~80% pass mark. A general certificate does not replace site-specific training. This free bank has 100 practice questions on classes, pictograms, labels, SDS sections, and Canadian WHMIS duties.

Sample WHMIS 2015 Practice Questions

Try these sample questions to test your WHMIS 2015 exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1What does WHMIS stand for in Canadian workplaces?

A.Workplace Hazardous Materials Information System

B.Workplace Health Monitoring Inspection System

C.Worker Hazard Management Instruction Standard

D.Worldwide Harmonized Materials Inventory Scheme

Explanation: WHMIS is Canada's national Workplace Hazardous Materials Information System for communicating hazards of hazardous products used, handled, or stored in workplaces.

2What international system did WHMIS 2015 align Canadian hazard communication with?

A.ISO 45001 only

B.The Globally Harmonized System of Classification and Labelling of Chemicals (GHS)

C.OSHA Process Safety Management exclusively

D.The Montreal Protocol

Explanation: WHMIS 2015 aligns Canada's classification and labelling with the Globally Harmonized System (GHS), while keeping Canadian rules such as bilingual labels/SDSs and biohazardous infectious materials.

3Under federal WHMIS supplier law, which Canadian body is responsible for overall supplier-related WHMIS requirements?

A.Transport Canada only

B.The Canadian Standards Association (CSA)

C.Health Canada

D.Employment and Social Development Canada alone

Explanation: Health Canada oversees WHMIS supplier laws under the Hazardous Products Act and Hazardous Products Regulations. Provinces/territories (and federal OHS for federally regulated workplaces) regulate workplace WHMIS duties.

4Which three pillars make up the core of WHMIS communication to workers?

A.TDG placards, shipping documents, and emergency response guides only

B.Incident investigations, workplace inspections, and JHSC minutes only

C.Exposure control plans, medical surveillance, and respirator fit-testing records only

D.Labels, safety data sheets (SDSs), and education and training

Explanation: WHMIS is built on labels (first alert), SDSs (detailed information), and education/training so workers understand hazards and safe work/emergency procedures.

5A product is a "hazardous product" under WHMIS when it:

A.Is any chemical sold in a hardware store for consumer home use only

B.Meets criteria to be classified in a WHMIS hazard class/category under the Hazardous Products Regulations and is intended for workplace use, handling, or storage

C.Has a strong odour regardless of toxicity or flammability

D.Is listed on any SDS website without classification

Explanation: If a product covered by the Hazardous Products Act meets HPR classification criteria, it is a hazardous product. Workplace-intended hazardous products require WHMIS labels and SDSs (subject to statutory exclusions).

6Who primarily applies the supplier label to a hazardous product sold for Canadian workplaces?

A.The worker who first opens the package

B.The provincial OHS inspector, who must stamp every shipped container

C.The supplier (manufacturer, importer, or distributor, as applicable)

D.The workplace joint health and safety committee after the product arrives

Explanation: Suppliers label hazardous products they provide. Employers ensure products entering the workplace are labelled and prepare workplace labels when required (decanting, lost/illegible labels, or products made and used on site).

7Which statement best describes employer WHMIS duties?

A.Employers must educate and train workers, ensure labels and up-to-date SDSs are available, and establish safe work and emergency procedures for hazardous products

B.Employers only need to keep SDSs in a locked office managers can access

C.Employers have no duties if suppliers provided an SDS at purchase

D.Employers may skip training if workers sign a liability waiver

Explanation: Employers must educate/train exposed workers, ensure labels and readily available up-to-date SDSs, and implement controls and emergency procedures. Site-specific training remains required after a general WHMIS course.

8In WHMIS terminology, what is the difference between education and training?

A.Training is only for supervisors; education is only for contractors

B.Education is site-specific procedures; training is only classroom theory

C.They mean the same thing and are interchangeable under all laws

D.Education is general/portable WHMIS knowledge (classes, labels, SDSs); training is workplace- and job-specific procedures for storage, use, disposal, and emergencies

Explanation: CCOHS distinguishes education (general WHMIS knowledge) from training (site- and job-specific safe work, storage, disposal, spill, and emergency procedures).

9WHMIS supplier labels and SDSs for hazardous products sold in Canada must be provided in:

A.English only if the buyer prefers English

B.French only in Quebec workplaces

C.Both official languages of Canada (English and French)

D.Any language as long as pictograms are present

Explanation: Under the HPR, required SDS and supplier label elements must be in English and French (one bilingual document or separate English and French parts provided together).

10Which of the following is a Canadian-specific WHMIS health hazard class?

A.Flammable liquids

B.Biohazardous infectious materials

C.Oxidizing gases

D.Gases under pressure

Explanation: Canada includes Biohazardous Infectious Materials as a WHMIS health hazard class with its own pictogram. The other options are GHS-aligned physical hazard classes.

About the WHMIS 2015 Exam

WHMIS 2015 worker knowledge assessments verify understanding of Canada’s Workplace Hazardous Materials Information System aligned with GHS: hazard classes and categories, pictograms, supplier and workplace labels, 16-section safety data sheets, and worker/employer education and control duties under the Hazardous Products Act/Regulations and jurisdictional OHS rules.

Assessment

Question count not published by the exam provider

Time Limit

Provider-dependent (many online courses ~1–2 hours including quiz)

Passing Score

Provider-set (commonly ~80%)

Exam Fee

Provider-set (often CAD $20–50 online) (Health Canada (supplier HPA/HPR) / employers & accredited WHMIS training providers (workplace education))

WHMIS 2015 Exam Content Outline

12%

WHMIS Overview & Roles

Purpose, GHS alignment, Health Canada vs workplace OHS roles, bilingual rules, education vs training

18%

Hazard Classes & Categories

Physical/health classes, category severity, BIM, PHNOC/HHNOC, multi-class products

15%

Pictograms

Nine WHMIS pictograms, dual-pictogram cases, grouping with signal word and hazard statements

20%

Labels

Supplier and workplace labels, signal words, statements, decanting, small containers, update timelines

20%

Safety Data Sheets

16 sections, worker priority sections, optional 12–15 content, 90-day updates, availability

15%

Education, Training & Controls

Training topics, site-specific training, rights, controls, spills, PPE, CBI, jurisdictions

How to Pass the WHMIS 2015 Exam

What You Need to Know

Passing score: Provider-set (commonly ~80%)
Assessment: Question count not published by the exam provider
Time limit: Provider-dependent (many online courses ~1–2 hours including quiz)
Exam fee: Provider-set (often CAD $20–50 online)

Keys to Passing

Work through all 100 available questions
Review every answer and explanation
Track weak areas and revisit them
Use our AI tutor for tough concepts

WHMIS 2015 Study Tips from Top Performers

1Memorize the two label types: supplier (full HPR elements, bilingual) vs workplace (product name, safe handling, SDS reference)

2Drill the 16 SDS section headings in order; know Sections 12–15 headings are required but content is optional in Canada

3Know update timelines: SDS within 90 days of significant new data; labels within 180 days

4Learn pictogram meanings—especially exclamation mark vs skull and crossbones vs health hazard vs corrosion

5Remember: Category 1 is the most severe within a class; Danger is more severe than Warning

6A general WHMIS course is not enough—study your workplace products’ actual labels and SDSs

Frequently Asked Questions

Is there one national WHMIS exam for all Canadian workers?

No. WHMIS worker education is required by jurisdictional OHS law and delivered by employers or accredited providers. Online courses typically end with a short MCQ quiz (pass marks often around 80%), but employers must still provide site-specific training on the products and procedures in that workplace.

What score do I need to pass a WHMIS 2015 online course?

Pass marks are set by the training provider. Many institutional and commercial WHMIS courses use about 80%. Confirm the requirement for your course and employer.

Does a WHMIS certificate replace workplace training?

No. General WHMIS education covers how the system works (classes, labels, SDSs). Employers must still train workers on the specific hazardous products, controls, storage, disposal, and emergency procedures at that worksite.

What topics appear on WHMIS 2015 worker tests?

Expect hazard classes and categories, pictograms, supplier and workplace labels, the 16-section SDS, worker and employer duties, and safe work/emergency procedures.

Who regulates WHMIS in Canada?

Health Canada administers federal supplier rules under the Hazardous Products Act and Hazardous Products Regulations. Provinces, territories, and federal OHS regulators enforce workplace WHMIS duties for employers and workers.