ASP - Associate Safety Professional Risk Assessment and Control Questions and Answers 1 — Questions and Answers
Question 1: A safety professional is conducting a risk assessment for a new manufacturing process. After identifying hazards, the next step is to analyze and evaluate the risk. Which of the following is the BEST representation of the fundamental components of risk analysis?
- Hazard identification and control implementation
- The probability of an event occurring and the severity of its consequences (Correct answer)
- Cost-benefit analysis and resource allocation
- Regulatory compliance and documentation review
Correct answer: The probability of an event occurring and the severity of its consequences
Risk is fundamentally characterized by two components: the likelihood (or probability) that a hazardous event will occur, and the severity of the harm or damage (consequences) if it does. A risk matrix is a common tool used to plot these two factors to prioritize risks.
Question 2: A maintenance team is tasked with replacing a faulty valve on a chemical processing line. To control the hazard of chemical exposure, the supervisor ensures the line is drained, flushed with water, and then air-gapped before the work begins. According to the hierarchy of controls, this approach is an example of which control measure?
- Substitution
- Personal Protective Equipment (PPE)
- Elimination (Correct answer)
- Administrative Controls
Correct answer: Elimination
By physically removing the hazardous chemical from the section of the pipe where work is being performed, the hazard has been eliminated. This is the most effective method in the hierarchy of controls.
Question 3: When performing a Job Hazard Analysis (JHA), what is the correct sequence of steps?
- Identify hazards, recommend controls, break the job into steps, prioritize jobs.
- Prioritize jobs, identify hazards, break the job into steps, recommend controls.
- Break the job into steps, recommend controls, prioritize jobs, identify hazards.
- Prioritize jobs, break the job into steps, identify hazards, recommend controls. (Correct answer)
Correct answer: Prioritize jobs, break the job into steps, identify hazards, recommend controls.
The standard process for a JHA involves first prioritizing which jobs to analyze (based on risk), then breaking the selected job into a sequence of steps, then identifying the potential hazards associated with each step, and finally, determining preventive measures and controls for those hazards.
Question 4: A safety manager at a construction site observes workers using a solvent with a high volatile organic compound (VOC) content for cleaning tools. To reduce the risk of respiratory irritation and long-term health effects, the manager sources and provides a low-VOC, water-based cleaner that performs the same function. This action is an example of which type of control from the hierarchy of controls?
- Engineering Control
- Elimination
- Substitution (Correct answer)
- Administrative Control
Correct answer: Substitution
Substitution involves replacing a hazardous material or process with a less hazardous one. In this scenario, the high-VOC solvent (a greater hazard) is replaced by a low-VOC, water-based cleaner (a lesser hazard).
Question 5: Which of the following risk assessment techniques is a graphical method that visualizes the pathways from the causes of an event to its consequences, including the preventative and mitigative barriers?
- Failure Mode and Effects Analysis (FMEA)
- Fault Tree Analysis (FTA)
- Job Hazard Analysis (JHA)
- Bowtie Analysis (Correct answer)
Correct answer: Bowtie Analysis
Bowtie analysis is a diagrammatic way to describe and analyze the pathways of a risk from its causes to its consequences. The diagram is shaped like a bowtie, with the hazard/top event in the center, threats and preventative controls on the left, and consequences and mitigative controls on the right.
Question 6: During a risk assessment of an automated warehouse, a safety professional identifies that the primary risk for a specific task is a collision with a robotic shuttle. The team determines that the likelihood of this event is 'Possible' and the severity would be 'Major'. Using a risk matrix, these two factors are used to determine the:
- Control effectiveness
- Risk priority level (Correct answer)
- Root cause of failure
- Acceptable risk tolerance
Correct answer: Risk priority level
A risk matrix uses the likelihood (or probability) and severity (or consequence) of an event to determine an overall risk rating or priority level (e.g., Low, Medium, High, Critical). This rating helps prioritize which risks require the most immediate attention and resources for control.
