Safety Regulations and Trade Practices Flashcards

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?

Answer: 3 m (10 ft)

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

What does WHMIS stand for in Canadian workplaces?

Answer: Workplace Hazardous Materials Information System

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

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

Answer: Zinc oxide fumes

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

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

Answer: Class C (CO2 or dry chemical)

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

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

Answer: Safety glasses and cut-resistant gloves

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

A lockout/tagout (LOTO) procedure is required before performing which of the following tasks?

Answer: Performing maintenance or clearing jams on energized equipment

LOTO procedures must be applied before any maintenance, repair, or unjamming of equipment to ensure it cannot be accidentally energized while a worker is in contact with it.

What is the correct immediate procedure when a coworker sustains a laceration on a construction site?

Answer: Apply first aid, notify the supervisor, and complete an incident report

Injuries must be treated with first aid immediately, reported to the supervisor promptly, and documented with an incident report as required by Canadian OHS legislation.