Safety Flashcards

Under Canadian occupational health and safety regulations, at what height does fall protection become mandatory for construction workers?

Answer: 3.0 metres

Most Canadian provincial OHS regulations require fall protection when workers are exposed to a fall hazard of 3.0 metres (10 feet) or more. Some jurisdictions may have lower thresholds for specific work activities.

What does WHMIS 2015 stand for and what is its purpose?

Answer: Workplace Hazardous Materials Information System — ensures workers know the hazards of chemicals they work with

WHMIS 2015 (Workplace Hazardous Materials Information System) is Canada's national hazard communication standard, aligned with GHS. It requires supplier labels, safety data sheets (SDS), and worker education for all hazardous products in the workplace.

What are the three main components of the WHMIS 2015 system?

Answer: Supplier labels, Safety Data Sheets (SDS), and worker education/training

The three pillars of WHMIS 2015 are: (1) supplier labels with standardized pictograms and hazard statements, (2) Safety Data Sheets (SDS) with 16 sections of detailed product information, and (3) worker education and training programs.

When working on a construction site in Canada, what is the purpose of a competent supervisor?

Answer: To ensure work is performed safely and in compliance with OHS regulations

Under Canadian OHS legislation, a competent supervisor has the knowledge, training, and experience to organize and ensure work is carried out safely. They must be familiar with the OHS Act, regulations, and potential hazards specific to the work being done.

What is a lockout/tagout procedure used for on a construction site?

Answer: To ensure energy sources are isolated and de-energized before maintenance or repair work

Lockout/tagout (LOTO) procedures ensure that hazardous energy sources (electrical, mechanical, hydraulic, pneumatic) are properly isolated and de-energized before workers perform maintenance, repair, or servicing. Locks prevent re-energization and tags warn others.

What type of personal protective equipment (PPE) is required at a minimum on most Canadian construction sites?

Answer: Hard hat, safety footwear, and high-visibility vest

The minimum PPE required on most Canadian construction sites includes a CSA-approved hard hat, CSA-approved safety footwear (steel or composite toe), and a high-visibility vest or clothing. Additional PPE is required based on specific task hazards.