Practice Test Geeks(WHMIS) Workplace Hazardous Materials Information System Practice Test
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Safe Handling and Exposure Flashcards

7 cards from real WHMIS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Safe Handling and Exposure flashcards as text

  1. Under WHMIS, which action is required before using a hazardous product for the first time?

    Answer: Read the Safety Data Sheet (SDS)

    Workers must read the SDS before using a hazardous product to understand its hazards and safe handling requirements.

  2. A worker is transferring a flammable solvent into a smaller container. What WHMIS-required step must be completed on the new container?

    Answer: Apply a workplace label with product name, hazard info, and safe handling instructions

    Decanted hazardous products must have a workplace label that includes the product identifier, hazard information, and safe handling precautions.

  3. Which of the following best describes an 'exposure limit' for a hazardous product?

    Answer: The maximum concentration in air a worker can be exposed to without adverse health effects

    An exposure limit (such as a TLV or OEL) defines the maximum airborne concentration considered safe for workers over a given time period.

  4. When handling a corrosive substance listed under WHMIS, which route of exposure is MOST commonly associated with skin and eye damage?

    Answer: Direct contact

    Corrosive substances primarily cause damage through direct skin and eye contact, making protective equipment essential.

  5. An SDS lists a substance as having a TWA (Time-Weighted Average) of 50 ppm. What does this mean for a worker on an 8-hour shift?

    Answer: The average exposure over 8 hours should not exceed 50 ppm

    A TWA of 50 ppm means the average airborne concentration over an 8-hour workday should not exceed that level.

  6. A WHMIS-classified 'skin sensitizer' product was spilled on a worker's glove. The worker has no immediate reaction. What is the correct response?

    Answer: Remove and replace the glove immediately and wash the affected skin

    Skin sensitizers can cause allergic reactions upon repeated exposure; immediate decontamination prevents sensitization even without an immediate reaction.

  7. Which engineering control is MOST effective at reducing inhalation exposure to hazardous vapors under WHMIS guidelines?

    Answer: Local exhaust ventilation (LEV) installed at the source

    Local exhaust ventilation captures vapors at the source before they disperse, making it the most effective inhalation control.