Workplace Hazard Identification and Control Flashcards
7 cards from real CRST practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Workplace Hazard Identification and Control flashcards as text
What is the primary purpose of a pre-task safety meeting (toolbox talk) before beginning work?
Answer: To discuss potential hazards and required controls specific to that day's tasks
Pre-task safety meetings allow workers and supervisors to discuss hazards specific to the upcoming tasks and confirm controls are in place, improving situational awareness before work begins.
Which hazard identification technique uses specific guide words such as 'more,' 'less,' 'reverse,' and 'other than' to systematically analyze process deviations?
Answer: HAZOP (Hazard and Operability Study)
HAZOP uses standardized guide words applied to process parameters to systematically identify potential deviations from design intent and analyze their causes and consequences.
According to Canadian OHS requirements, when must a workplace hazard assessment be reviewed?
Answer: Regularly and whenever significant changes to the workplace, processes, or equipment occur
Canadian OHS legislation requires hazard assessments to be reviewed at regular intervals and whenever changes occur that could introduce new or different hazards to the workplace.
What type of hazard control does 'replacing a toxic solvent with a water-based cleaning agent' represent?
Answer: Substitution
Substitution involves replacing a hazardous substance or process with a less hazardous alternative, which is the second most effective level in the hierarchy of controls.
Which of the following best describes a 'quantitative risk assessment'?
Answer: A risk assessment that assigns numerical values to the likelihood and consequence of harm
Quantitative risk assessment uses numerical data, statistical analysis, and calculations to express risk in measurable terms, enabling objective comparison, prioritization, and communication of risks.
What is the primary goal of a behavioral-based safety observation program?
Answer: To monitor and reinforce safe behaviors while identifying at-risk behaviors in real time
Behavioral-based safety observation programs focus on observing both safe and at-risk behaviors, reinforcing positive practices and correcting hazardous behaviors before they result in incidents.
Which of the following is correctly classified as a 'physical hazard' in the workplace?
Answer: Excessive noise levels from industrial machinery
Excessive noise is a physical hazard because it involves an energy form (sound energy) that can cause physiological harm such as noise-induced hearing loss, unlike biological, ergonomic, or psychosocial hazards.