WHMIS Safe Handling and Exposure 2

Question 1

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

Accepted Answer

Read the Safety Data Sheet (SDS)

Answer

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

Question 2

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

Accepted Answer

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

Answer

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

Question 3

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

Accepted Answer

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

Answer

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

Question 4

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

Accepted Answer

Direct contact

Answer

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

Question 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?

Accepted Answer

The average exposure over 8 hours should not exceed 50 ppm

Answer

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

(WHMIS) Workplace Hazardous Materials Information System Practice Test