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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Incident Investigation and Learning | 15% | - Investigation Methodology
|
| Topic 2: Risk Based Process Safety (RBPS) Fundamentals | 15% | - Process Safety Culture
|
| Topic 3: Process Safety Management Systems | 30% | - Management of Change
|
| Topic 4: Hazard Identification and Risk Analysis | 25% | - Hazard Assessment Methods
|
| Topic 5: Measurement, Audit, and Continuous Improvement | 15% | - Audit and Assessment
|
あらゆる人にとって、時間は非常に大切です。CCPSC試験に対して、いろいろな資料があります。そのような資料を勉強するには、長い時間がかかります。でも、CCPSC問題集を利用すれば、短い時間でCCPSC試験に合格できます。そして、CCPSC問題集は安くて、便利です。誰でも、CCPSC問題集を選択すれば、試験に合格する可能性が大きいです。もし、CCPSC問題集を勉強すれば、もし、将来にITエリートになります。
質問 # 113
Which of the following would be most effective as a leading metric for a Management of Change program?
正解：D
解説：
The correct answer is B because it directly reflects the quality and effectiveness of the Management of Change (MOC) process , making it a strong leading indicator per CCPS guidance.
A key risk in MOC systems is the misclassification of changes as "replacement-in-kind" (RIK) when they actually introduce new hazards or modify process conditions. If changes are incorrectly categorized, they may bypass the formal MOC review process, meaning hazards are not evaluated, procedures are not updated, and training is not conducted. Tracking the percentage of misclassified work provides insight into how well personnel understand and apply MOC requirements and highlights weaknesses in the system before incidents occur.
Option A relates to operating procedures management, not specifically MOC effectiveness. C is an asset integrity (mechanical integrity) metric and is more of a lagging or compliance indicator. D does not measure performance or effectiveness-it only reflects data collection activity.
CCPS emphasizes that leading metrics should monitor critical activities that prevent incidents , such as correct identification and processing of changes. By identifying misclassification trends early, organizations can improve training, clarify definitions, and strengthen compliance with MOC procedures, thereby reducing process safety risk.
質問 # 114 
This heater was severely damaged during startup as a result of a firebox explosion. The operator had difficulty with the instrumentation and decided to complete the startup by bypassing the interlocks. The main gas valve was opened and gas filled the heater while the pilots were off.
Upon lighting of the pilots, the heater exploded destroying the casing and damaging several tubes. Identify and discuss what elements of Risk-Based Process Safety, had they been implemented more effectively, could have reduced or eliminated the likelihood of this event occurring or reduced the consequences.
正解：B
解説：
The correct answer is C because this incident clearly involves multiple failures across several RBPS elements
, not a single-point breakdown. According to CCPS, major incidents typically result from combined weaknesses across systems .
Operating Procedures and Safe Work Practices were inadequate or not followed, as proper startup procedures should strictly prohibit bypassing safety interlocks and require verification of pilot ignition before introducing fuel gas. Management of Change (MOC) is relevant because bypassing interlocks constitutes a temporary change that should require formal authorization, risk assessment, and safeguards.
Training and Performance Assurance is critical, as the operator did not fully understand the hazard of gas accumulation in the firebox or the consequences of bypassing safeguards. Asset Integrity and Reliability also contributed, since instrumentation problems triggered the unsafe decision, indicating possible maintenance or reliability issues.
Additionally, Hazard Identification and Risk Analysis (HIRA) should have identified this scenario (fuel gas accumulation before ignition) as a credible hazard requiring strong safeguards. Finally, Process Safety Culture played a role, as bypassing interlocks suggests normalization of unsafe practices or production pressure overriding safety.
This event illustrates a classic breakdown of layers of protection , where both technical and organizational controls failed simultaneously, leading to a catastrophic explosion.
質問 # 115
Sources of information on previous incidents to be reviewed during a Process Hazard Analysis can include:
(select all that apply)
正解：A、B、C、D
解説：
The correct answer is A, B, C, and D because CCPS emphasizes that Process Hazard Analysis (PHA) should incorporate comprehensive incident history data from multiple relevant sources to ensure thorough hazard identification and risk evaluation.
Option A (site operating experience) is critical because it provides direct, first-hand knowledge of past incidents, near misses, and abnormal situations specific to the process being analyzed.
Option B (other locations within the company) is equally important because similar processes at different sites may have experienced incidents that reveal hazards not yet encountered locally. CCPS strongly encourages sharing lessons learned across sites .
Option C (publicly available sources) includes databases from industry groups, regulatory bodies, and technical organizations. These sources provide broad industry experience , helping identify rare but high- consequence scenarios.
Option D (site safety department) is also valid because safety teams often maintain incident records, investigation reports, and lessons learned , making them a key internal resource.
CCPS stresses that effective PHA depends on leveraging both internal and external knowledge to avoid overlooking hazards. Using diverse information sources improves the ability to identify credible scenarios and implement appropriate safeguards.
質問 # 116
Contractors were installing a heating coil in a small tank. When the job was nearly complete, the workers went on break, but one of them stayed behind and entered the tank alone. It is believed that while doing so, he inadvertently bumped open the nitrogen supply line lever-operated valve. He was later found dead inside the tank. Based only on the information provided in this brief description, which of the RBPS (Risk Based Process Safety) elements most directly apply to this event? (Select all that apply)
正解：A、B
解説：
The correct answers are A (Safe Work Practices) and B (Contractor Management) because the incident clearly involves failures in confined space entry control and contractor oversight , both of which are core RBPS elements.
Option A is critical because Safe Work Practices include procedures such as confined space entry, isolation of hazardous energy sources (e.g., nitrogen), lockout/tagout, and requirements for attendants and permits. The worker entered the tank alone , indicating a violation of confined space entry procedures, which typically require atmospheric testing, continuous monitoring, and a standby attendant. Additionally, the nitrogen valve was not properly controlled, highlighting inadequate hazard isolation.
Option B is also correct because the individual involved was a contractor , and CCPS emphasizes that organizations must ensure contractors are properly trained, supervised, and compliant with site safety rules.
Effective contractor management includes hazard communication, work permits, and enforcement of safety procedures.
Options C , D , and E relate to performance monitoring and improvement systems, which are indirect and not immediately causal. Option F (Emergency Management) is less directly applicable because the focus here is on prevention , not response.
This incident is a classic example of confined space and inert gas hazard failure , both strongly governed by safe work practices and contractor controls.
質問 # 117
Lagging indicators include: (select all that apply)
正解：B、E
解説：
The correct answers are C and D because lagging indicators measure events that have already occurred , particularly those involving loss of containment or failures with consequences.
Option C (hazardous material releases) is a classic lagging indicator. It reflects an actual failure of containment and is a key metric used in process safety performance (e.g., Tier 1 and Tier 2 events per CCPS
/ANSI/API RP 754).
Option D (spills inside secondary containment) is also a lagging indicator. Although the spill may be contained and less severe, it still represents a loss of primary containment , meaning an incident has already occurred.
Option A (management system failures) and E (missed inspections) are leading indicators because they identify weaknesses in systems before incidents occur . Option B (interlock activations) is generally considered a leading or near-miss indicator , signaling that safeguards are being challenged but have not yet failed.
CCPS emphasizes that lagging indicators are important for tracking outcomes and learning from failures , while leading indicators are used to proactively prevent incidents . A strong process safety program uses both types to ensure continuous improvement and risk reduction.
質問 # 118
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