Podcast
Questions and Answers
What mathematical expression would you use to calculate risk based on severity and probability?
What mathematical expression would you use to calculate risk based on severity and probability?
- Probability / Severity
- Probability + Severity
- Risk = Severity x Probability (correct)
- Risk = Severity + Probability
Which severity rating corresponds to an event resulting in a 3 day injury or illness?
Which severity rating corresponds to an event resulting in a 3 day injury or illness?
- Slight - 1
- Critical - 4
- Major - 3
- Serious - 2 (correct)
What is the threshold for a risk to be considered high?
What is the threshold for a risk to be considered high?
- 1 - 2
- 6 - 9 (correct)
- 3 - 4
- 2 - 5
Which of the following is NOT a step in the risk assessment process?
Which of the following is NOT a step in the risk assessment process?
Which analysis method is essential for tasks like crane operations and fuel bunkering?
Which analysis method is essential for tasks like crane operations and fuel bunkering?
Why was the Process Hazard Analysis regulation established by OSHA?
Why was the Process Hazard Analysis regulation established by OSHA?
What distinguishes qualitative risk assessment from quantitative risk assessment?
What distinguishes qualitative risk assessment from quantitative risk assessment?
Which factor is NOT essential in implementing a successful evacuation/emergency response plan?
Which factor is NOT essential in implementing a successful evacuation/emergency response plan?
What is the primary legal requirement for conducting a risk assessment in the workplace?
What is the primary legal requirement for conducting a risk assessment in the workplace?
Which of these statements best characterizes a hazard in the context of risk assessment?
Which of these statements best characterizes a hazard in the context of risk assessment?
Flashcards
Risk Assessment
Risk Assessment
A systematic process of identifying, analyzing, and evaluating potential hazards and risks in a workplace or activity.
Hazard
Hazard
Anything that could potentially cause harm to people.
Risk
Risk
The likelihood of a hazard causing harm and the severity of that harm.
Hierarchy of Hazard Control
Hierarchy of Hazard Control
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Incident
Incident
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Severity Rating
Severity Rating
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Probability Rating
Probability Rating
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Job Safety Analysis (JSA)
Job Safety Analysis (JSA)
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Process Hazard Analysis (PHA)
Process Hazard Analysis (PHA)
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Study Notes
Unit 2h: Intro to Risk Assessment
- Lecture Objectives:
- Identify risk assessment aims and objectives, differentiating qualitative and quantitative assessments.
- Review hazard control hierarchy and its role in risk assessment.
- List risk assessment tools, outlining procedures for job safety analysis (JSA).
- Define incidents, explaining procedures and legal requirements for investigating them.
- Classify emergency types and outline factors for successful evacuation/response plans.
What is Risk Assessment?
- A risk assessment is a systematic examination of workplace hazards to prevent harm to individuals.
- It's crucial to protect workers and others, prevent accidents/illnesses, and avoid legal issues (e.g., court cases, insurance increases).
- Accidents and poor health can severely impact individuals and businesses (lost output, damaged machinery, financial losses).
How to Assess Workplace Risks
- Follow these five steps:
- Identify hazards.
- Determine who might be harmed and how.
- Evaluate risks and identify precautions.
- Record findings and implement controls.
- Review and update assessments as needed.
- Avoid overcomplicating the process. Many risks are already known.
Hazard Analysis Methods
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Job Safety Analysis (JSA) or Job Hazard Analysis (JHA):
- Document hazards, causes, and control measures.
- Important for complex tasks like equipment maintenance, crane operations.
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Process Hazard Analysis:
- A regulatory requirement preventing incidents like the Bhopal Disaster.
- Analyzes hazards associated with processes involving hazardous chemicals.
Hazard Severity and Probability
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Severity is categorized into major, serious, and slight.
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Probability is categorized into high, medium, and low.
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Risk = Severity x Probability
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Examples of high risk levels (6-9), moderate (3-5), and low levels(1-2).
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HAZOP (Hazard and Operability Study), JSA, Failure Mode and Effects Analysis (FMEA), and Fault Tree Analysis are common analysis tools.
Process Hazard Analysis (HAZOP)
-Analyze potential hazardous occurrences in chemical processes.
- Identifies and analyzes hazards in highly hazardous chemicals (HHCs)
- Evaluates each process in the establishment to identify, evaluate, and control hazards.
Checklist Analysis of Process
- Questions used for evaluating risks within a process.
Accident Investigation
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What is an Accident? An unplanned event that causes harm or damages property, but can also be a "near miss" or "dangerous occurrence."
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Importance of Investigating Accidents: To identify the root cause, prevent future incidents, comply with regulations, and determine costs.
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Steps to Investigate Accidents: Report the incident to the appropriate person. Provide first aid and medical attention. Identify and investigate cause. Develop a solution and implement corrective actions. Evaluate the effectiveness of corrective action.
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