308A Safety Regulations and Trade Practices 1

Question 1

According to most Canadian occupational health and safety regulations, at what height above the lower level must sheet metal workers use fall protection while working on a structure?

Accepted Answer

3 m (10 ft)

Answer

Most Canadian provinces, including Ontario and BC, require fall protection for workers at heights of 3 m (10 ft) or more on construction sites.

Question 2

What does WHMIS stand for in Canadian workplaces?

Accepted Answer

Workplace Hazardous Materials Information System

Answer

WHMIS stands for Workplace Hazardous Materials Information System, Canada's national hazard communication standard.

Question 3

When cutting or welding galvanized sheet metal, what is the primary health hazard a worker must protect against?

Accepted Answer

Zinc oxide fumes

Answer

Heating or cutting galvanized steel releases zinc oxide fumes, which can cause metal fume fever and serious respiratory illness.

Question 4

Which class of fire extinguisher is appropriate for an electrical fire in a sheet metal workshop?

Accepted Answer

Class C (CO2 or dry chemical)

Answer

Class C extinguishers use non-conductive agents such as CO2 or dry chemical, making them safe for energized electrical equipment fires.

Question 5

What personal protective equipment (PPE) is essential when operating a power shear?

Accepted Answer

Safety glasses and cut-resistant gloves

Answer

Power shears produce flying metal chips and sharp-edged offcuts, so safety glasses and cut-resistant gloves are mandatory to protect eyes and hands.

Red Seal Sheet Metal 308A Practice Test

Red Seal Sheet Metal 308A Practice Test

308A Safety Regulations and Trade Practices 1