Welcome to the VCHRI WHMIS Quiz

This session is MANDATORY for all new staff and students working at VCH Research, which includes the following buildings: Blusson Spinal Cord Centre (BSCC), Heather Pavilion (HP), Jack Bell Research Centre (JBRC), Robert H.N. Ho Research Centre (RHNH), Research Pavilion (RP) and Willow Chest Centre (WCC). It's also open to anyone who needs a refresher. All questions must be answered correctly before the quiz will allow you to submit. A copy of your completed quiz is automatically e-mailed to your PI/Supervisor and they will be advised to enter the information on your Personnel Training Record. If you wish to print a copy of your completed quiz, first submit the quiz to your PI/Supervisor, then hit the back arrow button (top left), then click on the PRINT YOUR ANSWERS button at the end.
Background Information
VCH Research WHMIS Quiz


15. Match the correct statement with the correct definition:

Choose DefinitionStatementDefinition List
a) Odor Treshold1. The concentration of a chemical in the workplace air to which most people can be exposed without experiencing harmful effects.
b) Exposure Limits2. An exposure that is relatively short.
c) LC503. An exposure that occurs over a long period of time.
d) Auto-Ignition Temperature4. The lowest temperature at which a liquid or solid gives off sufficient vapor to form a flammable air-vapour mixture near its surface.
e) Flash Point5. As the temperature of a flammable material is further increased, a minimum temperature is reached at which self-sustained combustion occurs in the absence of an ignition source.
f) Incompatible Substances6. The concentration of a material in air, normally expressed as part per million (PPM), that when administered to laboratory animals, kills half the population during the period of exposure. The lower the value, the more dangerous it is.
g) Acute Exposure7. These are referred to as controlled products in the legislation.
h) Chronic Exposure8. Substances can enter the body three ways: absorption through the skin, inhalation into the lungs, and ingestion or swallowing.
i) Route of Entry9. Substances which react dangerously together (i.e. sodium metal reacts violently with water, generating heat and mist).
j) Hazardous Materials10. The lowest concentration of a chemical in air that is detectable by smell.


16. Answer TRUE or FALSE to the following statements:

a) If a hazardous material is transferred from a container with a supplier label on it to a smaller, portable container, and this material is to be used by a number of employees during the shift, the new container needs a workplace label
b) Personal protective equipment, such as respirators, gloves, special clothing, etc. should always be worn when working directly with hazardous materials.
c) The most preferred methods for protecting workers from the hazards of dangerous chemicals are "substitution" or "isolation". Substitution: replacement of hazardous material/process with another material/ process that poses a lower health risk. Isolation: enclosing a process involving the hazardous material so that there is no direct worker contact on a regular basis.
d) Administrative controls are designed to limit employee exposure by reducing the time of potential exposure (e.g. through the arrangement of work schedules, reduction of exposure time)
e) Safe work procedures do not need to be followed when other effective means of protecting employees are being used.
f) Portable containers filled from supplier containers, as well as products produced in the laboratory for research and development work in the same lab, do not need workplace labels, only a means of identification.


17. To be called a hazardous material or controlled product, a product has to meet the criteria of one or more hazard class, each of which has a corresponding symbol. Match each symbol on the left with the correct hazard class:

Choose Hazard ClassSymbolHazard Class List
a) 1. Class C: Oxidizing Material
Examples: sodium hypochlorite (bleach), hydrogen peroxide, perchloric acid
b) 2. Class D3: Biohazardous Infectious Material
Examples: Hepatitis A, B, C viruses, culture diagnostic specimens, MRSA
c) 3. Class E: Corrosive Material
Examples: ammonium hydroxide, sodium hydroxide, sulfuric acid
d) 4. Class F: Dangerously Reactive Material
Examples: Alkali metals react with water (i.e. lithium, sodium, potassium)
e) 5. Class D2: Materials causing other Toxic effects
Examples: Acetone (irritant), asbestos (cancer causing)
f) 6. Class A: Compressed Gas
Examples: nitrogen, carbon dioxide, helium, oxyacetylene (welding gas)
g) 7. Class B: Flammable & Combustible Material
Examples: Acetone, ethyl alcohol, xylene, benzoin tincture
h) 8. Class D1: Material causing immediate and serious Toxic Effect
Examples: Hydrogen sulfide, hydrogen chloride, sodium cyanide