G3 - Gas Technician Level 3 Workplace Safety and PPE Questions and Answers

Question 1

A gas technician is preparing to service a rooftop unit. Which of the following PPE is essential for protection against potential falling objects and impact hazards?

Accepted Answer

A CSA-certified hard hat

Answer

CSA-certified safety glasses

Answer

Steel-toed boots with puncture-resistant soles

Answer

High-visibility vest

Question 2

When drilling into masonry to run a gas line, a technician is exposed to flying particles and dust. According to CSA Standard Z94.3, what is the most appropriate eye protection for this specific task?

Accepted Answer

A full-face shield worn over safety glasses

Answer

Standard prescription eyeglasses

Answer

Safety glasses with side shields

Answer

Directly-vented goggles

Question 3

A technician needs to enter a crawl space to inspect a gas line. Atmospheric testing reveals a potentially hazardous atmosphere. What is a critical safety procedure that must be followed according to Ontario's confined space regulations?

Accepted Answer

Having a trained attendant stationed outside the space for monitoring and communication.

Answer

Ensuring a cellphone has a full charge for communication.

Answer

Posting a warning sign outside the crawl space entrance.

Answer

Wearing a simple dust mask to filter the air.

Question 4

Before starting maintenance on a gas-fired boiler, the technician must isolate it from the electrical supply. What is the correct procedure to ensure the equipment cannot be accidentally re-energized?

Accepted Answer

Applying a Lockout/Tagout (LOTO) device to the electrical breaker.

Answer

Turning off the main power switch on the appliance.

Answer

Informing other workers in the area not to touch the controls.

Answer

Unplugging the appliance if it has a power cord.

Question 5

While handling pipe sealant and cleaning solvents, a gas technician should consult which document to understand the specific health hazards and required protective measures?

Accepted Answer

The product's Safety Data Sheet (SDS).

Answer

The CSA B149.1 Installation Code.

Answer

The appliance manufacturer's installation manual.

Answer

The TSSA's Gaseous Fuels regulation (O. Reg. 212/01).

Question 6

Which of the following is a primary responsibility of a worker under the Workplace Hazardous Materials Information System (WHMIS)?

Accepted Answer

To participate in training, take steps to protect themselves, and report missing labels.

Answer

To classify hazardous products and prepare Safety Data Sheets.

Answer

To provide personal protective equipment for all workplace hazards.

Answer

To conduct workplace inspections and issue compliance orders.