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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Process Safety Management Systems | 15-20% | - Management Leadership and Commitment - Continuous Improvement Frameworks - Elements of PSM Systems - Policy and Strategic Planning |
| Topic 2: Risk Assessment and Analysis | 20-25% | - Bow-Tie Analysis - Layer of Protection Analysis (LOPA) - Fault Tree Analysis (FTA) - Hazard Identification (HAZID) - Hazard and Operability Analysis (HAZOP) - Event Tree Analysis (ETA) - Quantitative Risk Assessment (QRA) |
| Topic 3: Emergency Planning and Response | 5-10% | - Emergency Response Planning - Containment and Mitigation Barriers - Safety Instrumented Systems (SIS) - Inherently Safer Design Principles |
| Topic 4: Regulatory Compliance and Auditing | 5-10% | - Process Safety Auditing Techniques - Compliance Verification Methods - OSHA PSM Requirements - International Process Safety Standards - EPA RMP Regulations |
| Topic 5: Operating Procedures and Practices | 10-15% | - Operations Training and Competency - Standard Operating Procedures (SOPs) - Startup and Shutdown Procedures - Safe Work Practices - Permit-to-Work Systems |
| Topic 6: Process Safety Engineering Fundamentals | 15-20% | - Toxicology and Exposure Assessment - Chemical Process Safety Fundamentals - Fire and Explosion Dynamics - Thermodynamics and Reaction Hazards - Equipment Design and Integrity |
| Topic 7: Incident Investigation and Learning | 10-15% | - Lessons Learned and Knowledge Management - Trending and Performance Metrics - Incident Classification and Severity - Investigation Report Development - Root Cause Analysis Methods |
| Topic 8: Management of Change (MOC) | 8-12% | - Personnel and Organizational Changes - MOC Process Requirements - Technical Review and Risk Assessment - Temporary vs. Permanent Changes |
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質問 # 85
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：B、C、E
解説：
The correct answers are A (Asset Integrity and Reliability), B (Conduct of Operations), and D (Training and Performance Assurance) because each directly contributed to the failure scenario described.
A (Asset Integrity and Reliability) is implicated because the flow controller was out of calibration , indicating a failure in inspection, testing, or maintenance systems. CCPS emphasizes that instrumentation must be properly maintained and calibrated to ensure reliable process control.
B (Conduct of Operations) is also a key factor. The operator deviated from established procedures by opening a bypass valve. Conduct of Operations requires strict adherence to procedures, proper supervision, and disciplined operational practices to prevent unsafe actions.
D (Training and Performance Assurance) is relevant because the operator either did not understand the risk of bypassing the control system or was not adequately trained to respond appropriately to abnormal situations.
CCPS stresses that personnel must be competent in both normal and upset conditions.
C (Workforce Involvement) is less directly related to the immediate cause, and E (Incident Investigation) applies after an event, not as a causal factor.
This scenario demonstrates how combined weaknesses in equipment reliability, procedural discipline, and operator competence can lead to a major process safety incident such as a runaway reaction.
質問 # 86
The workforce involvement element: (Select all that apply)
正解：A、B、D
解説：
The correct answers are A, B, and C because the Workforce Involvement element in CCPS RBPS is focused on actively engaging employees in process safety activities and decision-making.
Option A is correct because workforce involvement plays a key role in reinforcing a strong process safety culture . When employees participate in hazard identification, incident investigations, and safety discussions, they develop ownership and commitment to safe operations.
Option B is also correct because effective workforce involvement requires clearly defined roles and responsibilities . Employees at all levels must understand their responsibilities in maintaining process safety, which improves accountability and consistency.
Option C is correct as CCPS emphasizes the need to establish formal mechanisms for participation , such as safety committees, feedback systems, and involvement in HAZOPs or risk assessments. These mechanisms ensure that workforce knowledge and experience are effectively utilized.
Option D is incorrect because CCPS does not require or define veto authority for employee representatives .
While employee input is critical, decision-making authority remains structured within the organization's management systems.
Overall, workforce involvement strengthens process safety by leveraging frontline knowledge, improving communication, and fostering shared responsibility .
質問 # 87
Which of the following are effective methods for verifying that an operator understood the training provided?
(Select all that apply)
正解：B、C
解説：
The correct answers are B and D because CCPS emphasizes that training effectiveness must be verified through demonstrated understanding and competency , not simply attendance or acknowledgment.
Option B is correct because a written quiz or test is a structured method to assess whether the operator has understood key concepts, procedures, and safety requirements. Properly designed tests can validate knowledge retention and comprehension.
Option D is also correct because trainer verification of demonstrated understanding (such as practical demonstrations, simulations, or observed task performance) provides strong evidence that the operator can apply the training in real work situations. This aligns with CCPS expectations for performance-based competency assurance .
Option A is not sufficient because a signed form only confirms that training was completed, not that it was understood. Option C is also inadequate, as attendance does not demonstrate comprehension or ability to perform tasks safely.
CCPS stresses that organizations must ensure personnel are not just trained, but competent to perform safely , which requires verification through testing, observation, and demonstrated performance rather than passive confirmation methods.
質問 # 88
Which of the following approaches can be used to prevent fires and explosions? (select all that apply)
正解：A、B、C、D
解説：
The correct answer is A, B, C, and D because all listed options are recognized by CCPS as key preventive measures to control ignition sources and flammable atmospheres , which are the two essential elements required for fires and explosions.
Option A (prevent static accumulation) is important because static discharge can act as an ignition source, especially in low-conductivity fluids. Proper grounding and bonding prevent charge buildup.
Option B (properly rated electrical fixtures) ensures that electrical equipment does not generate sparks or hot surfaces capable of igniting flammable mixtures. This is critical in classified hazardous areas.
Option C (inerting procedures) removes or reduces oxygen concentration below the limiting oxygen concentration (LOC), preventing combustion even if a fuel and ignition source are present. This is a highly effective engineered control.
Option D (hot-work permits) control activities like welding or cutting that introduce ignition sources. These permits ensure that hazards are identified, the area is made safe, and appropriate precautions are taken before work begins.
CCPS emphasizes that fire and explosion prevention relies on eliminating ignition sources, controlling fuel release, or reducing oxidant availability , and all listed approaches contribute to these strategies.
質問 # 89
A facility is selecting an inerting procedure for one of its large reactors. Which inerting method would be expected to require the greatest nitrogen consumption?
正解：E
解説：
The correct answer is C (Sweep through purging) because it is the least efficient inerting method in terms of inert gas consumption , as described in CCPS guidance on inerting and purging practices.
In sweep through purging , nitrogen is continuously introduced into the vessel while the existing gas mixture is displaced and vented. This method relies on dilution rather than compression or evacuation, meaning that large volumes of nitrogen are required to achieve the desired reduction in oxygen concentration. The inefficiency arises because complete mixing is assumed, and multiple vessel volume exchanges are needed.
In contrast, pressure purging (B) and vacuum purging (A) are significantly more efficient. Pressure purging uses repeated pressurization and venting cycles to reduce oxygen concentration, while vacuum purging removes gases before backfilling with nitrogen. The most efficient method is typically combined vacuum
/pressure purging (D) , which minimizes nitrogen usage by leveraging both techniques.
Siphon purging (E) is not a commonly recognized CCPS inerting method for gas-phase systems.
CCPS emphasizes selecting inerting methods based on vessel design, pressure capability, safety requirements, and gas consumption efficiency. For large vessels, minimizing nitrogen usage is often important for both cost and operational practicality.
質問 # 90
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