CCIL - Canadian Council of Independent Laboratories Laboratory Safety Protocols Questions and Answers

Question 1

A technician receives a new solvent for use in asphalt binder testing.
The container displays the WHMIS 2015 pictogram showing a flame over a circle.
What is the primary hazard associated with this product?

Accepted Answer

The material can cause or intensify a fire as an oxidizing agent.

Answer

The material is flammable and will ignite easily on its own.

Answer

The material is dangerously reactive and may explode.

Answer

The material is corrosive and can damage metals and skin.

Question 2

When operating a diamond-blade saw to cut concrete core samples, which of the following combinations of Personal Protective Equipment (PPE) is considered the minimum requirement to protect against the primary hazards of the task?

Accepted Answer

Safety glasses/goggles, respiratory protection (e.g., N95 respirator), hearing protection, and steel-toed boots.

Answer

Safety glasses and steel-toed boots.

Answer

Hearing protection and a standard dust mask.

Answer

Leather gloves, a hard hat, and a high-visibility vest.

Question 3

A technician is melting sulphur to cap concrete cylinders. To minimize the risk of fire and exposure to harmful fumes, what is the most critical safety practice to follow?

Accepted Answer

Using a thermostatically controlled melting pot in a well-ventilated area or under a fume hood.

Answer

Ensuring the sulphur compound is completely dry before adding it to the pot.

Answer

Wearing cotton gloves to absorb any potential spills.

Answer

Melting the sulphur as quickly as possible at the highest available temperature.

Question 4

While transferring a chemical, a technician accidentally spills approximately 500 mL of a corrosive liquid on the laboratory floor. After alerting nearby colleagues, what is the IMMEDIATE next step?

Accepted Answer

Consult the Safety Data Sheet (SDS) for specific clean-up instructions.

Answer

Wipe up the spill with paper towels.

Answer

Pour water over the spill to dilute the chemical.

Answer

Immediately find the laboratory manager to report the incident.

Question 5

Which of the following is a critical safety feature on a concrete compression testing machine designed to protect the operator from high-energy specimen failure?

Accepted Answer

A rigid steel frame and fragment guard doors.

Answer

A digital display showing a real-time load rate.

Answer

An automatic piston retraction mechanism.

Answer

A built-in printer for immediate results.

Question 6

According to Canadian WHMIS 2015 regulations, what is the primary source of comprehensive technical information regarding the hazards, handling, and emergency measures for a controlled product?

Accepted Answer

The Safety Data Sheet (SDS).

Answer

The product's supplier label.

Answer

The workplace safety policy manual.

Answer

The Health Canada website.