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| Section | Weight | Objectives |
|---|---|---|
| Risk Assessment and Analysis | 20-25% | - Layer of Protection Analysis (LOPA) - Fault Tree Analysis (FTA) - Quantitative Risk Assessment (QRA) - Event Tree Analysis (ETA) - Hazard and Operability Analysis (HAZOP) - Hazard Identification (HAZID) - Bow-Tie Analysis |
| Incident Investigation and Learning | 10-15% | - Trending and Performance Metrics - Lessons Learned and Knowledge Management - Root Cause Analysis Methods - Incident Classification and Severity - Investigation Report Development |
| Process Safety Management Systems | 15-20% | - Management Leadership and Commitment - Elements of PSM Systems - Continuous Improvement Frameworks - Policy and Strategic Planning |
| Regulatory Compliance and Auditing | 5-10% | - International Process Safety Standards - Process Safety Auditing Techniques - Compliance Verification Methods - OSHA PSM Requirements - EPA RMP Regulations |
| Emergency Planning and Response | 5-10% | - Inherently Safer Design Principles - Containment and Mitigation Barriers - Safety Instrumented Systems (SIS) - Emergency Response Planning |
| Process Safety Engineering Fundamentals | 15-20% | - Fire and Explosion Dynamics - Equipment Design and Integrity - Toxicology and Exposure Assessment - Thermodynamics and Reaction Hazards - Chemical Process Safety Fundamentals |
| Operating Procedures and Practices | 10-15% | - Standard Operating Procedures (SOPs) - Safe Work Practices - Startup and Shutdown Procedures - Operations Training and Competency - Permit-to-Work Systems |
| Management of Change (MOC) | 8-12% | - MOC Process Requirements - Personnel and Organizational Changes - Technical Review and Risk Assessment - Temporary vs. Permanent Changes |
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質問 # 25
A contract company that has never worked at your site is the only contract company technically capable of performing a critical task at your site. The contract company's safety record is well below your company's safety performance criteria. What activities do you take while they are working on-site? (select all that apply)
正解：A、B、C、E
解説：
The correct answers are A, C, D, and E because CCPS emphasizes that when working with contractors- especially those with poor safety performance -organizations must apply enhanced oversight, active engagement, and strict control measures .
Option A is critical because daily pre-job planning and communication ensure that hazards are understood and safe work practices are clearly defined before work begins.
Option C is correct because immediate intervention is required when serious safety issues arise. Stopping work prevents escalation and allows for retraining or corrective action, which aligns with CCPS principles of risk control.
Option D is also essential because active field observation and intervention help identify unsafe behaviors or conditions in real time. Providing immediate feedback reinforces safe practices and corrects deviations.
Option E is correct because incident investigation and documentation are necessary for learning and ensuring accountability. This supports continuous improvement and future contractor management decisions.
Option B , while useful, occurs after the work is complete and does not directly contribute to controlling risks during execution.
CCPS stresses that contractor safety requires ongoing monitoring, communication, and intervention , especially when risk levels are elevated.
質問 # 26
A process calls for the addition of a reactant over a certain period of time. The flow controller on the reactant' s feed line was out of calibration and reduced the flow rate of the reactant. The operator noticed the addition rate was too low and, contrary to the operating procedures, he opened a bypass valve around the flow control valve to increase the flow rate. As a result, the operator added the remaining reactant too quickly, and a runaway reaction occurred. Weaknesses in which of the following Risk Based Process Safety elements could have contributed to the cause of this incident? (Select all that apply)
正解：A、C、E
質問 # 27
Identifying potential change situations is characteristic of:
正解：A
解説：
The correct answer is D (Management of Change) because a core function of the MOC element is to identify, recognize, and manage situations where changes occur that could impact process safety.
CCPS emphasizes that one of the most critical steps in an effective MOC system is the early identification of what constitutes a "change." This includes not only obvious changes (equipment modifications, new chemicals, process conditions) but also less obvious ones such as procedural updates, organizational changes, or temporary modifications. Failure to recognize a change can lead to bypassing the MOC process entirely, introducing unmanaged risks.
Option A (Process Knowledge Management) focuses on maintaining accurate technical information, not identifying changes. Option B (Operational Readiness) ensures systems are ready for startup but does not focus on recognizing change situations. Option C (Management Review) evaluates performance at a higher level. Option E (Hazard Identification and Risk Analysis) evaluates hazards but does not specifically identify when a change has occurred.
CCPS highlights that effective MOC begins with clear definitions, awareness, and training so personnel can recognize when a change is taking place, ensuring it is properly reviewed, approved, and safely implemented.
質問 # 28
Which one of the following Hazard Identification and Risk Analysis (HIRA) methods is generally considered to be most quantitative in nature?
正解：D
解説：
The correct answer is A (Failure Modes and Effects Analysis - FMEA) because it is generally considered the most quantitative (or semi-quantitative) among the listed HIRA methods.
FMEA systematically evaluates potential failure modes, their causes, and consequences, and assigns numerical rankings such as severity, occurrence, and detectability. These rankings are often combined into a Risk Priority Number (RPN) , providing a structured and numerical basis for prioritizing risks. This quantitative scoring distinguishes FMEA from more qualitative methods.
In contrast, What-If (B) and What-If/Checklist (C) are largely qualitative brainstorming techniques , relying on team experience rather than numerical scoring. HAZOP (E) is a highly structured and systematic method but is still primarily qualitative , focusing on deviations and consequences without assigning numerical risk values. Bow-Tie Analysis (D) is mainly a visual and qualitative method , illustrating barriers and pathways between causes and consequences.
CCPS categorizes HIRA methods along a spectrum from qualitative to quantitative. FMEA lies toward the semi-quantitative end , making it particularly useful when organizations need prioritized, numerically supported risk evaluations while still maintaining practicality in application.
質問 # 29
After an incident with fatal consequences, you are requested by top management to form an investigation team. Who of the following would be the most suitable candidate to lead the company investigation?
正解：E
解説：
The correct answer is D (An authorized off-site company resource) because CCPS emphasizes that serious incident investigations-especially those involving fatalities or major consequences -should be led by an individual who is independent, unbiased, and highly trained in investigation methodologies .
An off-site resource provides objectivity and impartiality , which is critical when investigating high-severity incidents. Internal personnel such as the plant manager (A), maintenance supervisor (B), or lead process engineer (C) may have direct or indirect involvement , organizational bias, or conflicts of interest that could influence findings or limit openness during interviews.
Option E (contractor representative) is also not appropriate as a leader due to potential bias and limited system-wide perspective.
CCPS guidance stresses that investigation leaders should have expertise in root cause analysis techniques , strong facilitation skills, and the authority to conduct a thorough and credible investigation. Independence helps ensure that findings focus on system failures rather than individual blame , aligning with a just culture approach.
While internal personnel should be part of the investigation team for technical input, leadership by an independent, qualified individual enhances credibility, ensures rigor, and supports organizational learning and prevention of future incidents.
質問 # 30
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