WHMIS Practice Test 2026 – Free WHMIS Questions

No. Canada has no single national WHMIS exam. Employers must educate and train workers, and the employer, or a training provider it chooses, decides how to check that the training worked. That is often a short written quiz at the end of a course, but it can also be an oral test or a practical demonstration. In Ontario, the provincial WHMIS guide leaves the method to the employer.

It depends on who gives the course; there is no official number of questions or pass mark. Our mock exam has 25 questions and you need 20 correct (80 percent) to pass. That is our own practice standard, chosen so you are well prepared for whatever quiz your employer or training provider uses.

No. These are original practice questions written from free official sources: the CCOHS WHMIS fact sheets, whmis.org and Ontario's guide to the WHMIS legislation. We do not copy any training course or other practice site. Learning the reasons behind each answer is what lets you pass a quiz you have never seen and, more importantly, work safely.

The system has been updated. Amendments to the Hazardous Products Act and Regulations came into force on December 15, 2022, and suppliers had a three-year transition that ended in December 2025. CCOHS now calls the current rules amended WHMIS. The pictograms, signal words, label elements and 16-section SDS are the same as in WHMIS 2015, so most training material still applies; the changes were mainly to some hazard classes and categories.

There is no national expiry date on WHMIS training, and most jurisdictions do not set a fixed retraining schedule. Employers must review their training program at least once a year and give refresher training when new products arrive, hazards or procedures change, or workers need it. If you change jobs, your new employer decides whether to repeat the general part, but it must always give you training specific to its workplace.

WHMIS law puts the duty to educate and train workers on the employer. In Ontario, the labour ministry's position is that time spent in training sessions is work time and should be paid at the regular or premium rate. Check your own province's rules for details.

Most pictograms are a black symbol inside a red diamond: flame (fire hazards), flame over circle (oxidizers), gas cylinder (gases under pressure), corrosion (damages metal, skin or eyes), exploding bomb (explosion or reactivity), skull and crossbones (can be fatal or toxic after short exposure), health hazard (serious health effects such as cancer) and exclamation mark (less serious effects such as irritation). The ninth, for biohazardous infectious materials, sits inside a round black border. Some classes, such as simple asphyxiants, have no pictogram.

In order: 1 Identification, 2 Hazard identification, 3 Composition and ingredients, 4 First-aid measures, 5 Fire-fighting measures, 6 Accidental release measures, 7 Handling and storage, 8 Exposure controls and personal protection, 9 Physical and chemical properties, 10 Stability and reactivity, 11 Toxicological information, 12 Ecological information, 13 Disposal considerations, 14 Transport information, 15 Regulatory information and 16 Other information, which includes the date of the last revision.

The supplier label comes on the container from the supplier and must be in English and French, with the product identifier, supplier details, pictograms, signal word, hazard and precautionary statements. A workplace label is made by the employer when a product is decanted into another container, made on site, or when the supplier label is lost or unreadable. It needs the product name matching the SDS, safe handling information and a reference to the SDS.

The general education part can be taken online; Ontario points workers to a generic online course that CCOHS offers for a small fee, and many other providers exist. The workplace-specific part has to come from your employer, because it covers your own products, procedures and emergency plans. Our practice tests are free and work on any phone or computer.