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| Section | Weight | Objectives |
|---|---|---|
| Process Safety Management Systems | 30% | - Management of Change
|
| Measurement, Audit, and Continuous Improvement | 15% | - Performance Indicators
|
| Incident Investigation and Learning | 15% | - Learning and Improvement
|
| Hazard Identification and Risk Analysis | 25% | - Hazard Assessment Methods
|
| Risk Based Process Safety (RBPS) Fundamentals | 15% | - Process Safety Culture
|
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質問 # 41
A Management of Change system should address all types of changes to the process that can be reasonably foreseen.
正解：A
解説：
The correct answer is A (True) because CCPS Risk-Based Process Safety clearly states that a Management of Change (MOC) system must address all types of changes that could impact process safety and can be reasonably anticipated .
These changes include modifications to process technology, equipment, procedures, chemicals, operating conditions, and organizational structure . CCPS emphasizes that even seemingly minor changes can introduce new hazards or alter existing risk profiles, making it essential that they are systematically identified and evaluated.
The phrase "reasonably foreseen" is important. It acknowledges that while not every possible scenario can be predicted, organizations are expected to anticipate typical and credible changes based on experience, design knowledge, and operational practices. This includes both permanent and temporary changes, as well as emergency changes (which may follow an expedited but still controlled process).
A robust MOC system ensures that hazards are assessed, safeguards are reviewed, documentation is updated, and personnel are trained before implementation. Failure to capture foreseeable changes is a common root cause of major process safety incidents.
Therefore, CCPS considers it essential that MOC systems are comprehensive in scope , covering all foreseeable changes to maintain process safety and operational integrity.
質問 # 42
The maintenance department intends to repair a leaking pipe by applying a temporary leak repair fixture (pipe clamp). What should be considered when designing the proposed pipe clamp? (Select all that apply)
正解：A、D
解説：
The correct answers are B and C because temporary repair devices such as pipe clamps must be designed to withstand process conditions and ensure compatibility with the contained material , as emphasized in CCPS Mechanical Integrity practices.
Option B (operating pressure) is critical because the clamp must be capable of containing the internal pressure without failure . If the clamp is not designed for the system pressure, it could fail catastrophically, leading to a loss of containment. Pressure is one of the primary design parameters for any repair device.
Option C (corrosive properties) is also essential because the clamp materials must be compatible with the process fluid . If the fluid is corrosive, it could degrade the clamp or sealing materials, compromising the effectiveness of the repair over time.
Option A (viscosity) is generally not a key design factor for a clamp, as leakage containment depends more on pressure and sealing rather than fluid flow characteristics. Option D (weight) is not a primary process safety concern, although it may be a mechanical consideration.
CCPS stresses that temporary repairs must be engineered, reviewed, and managed under MOC , ensuring they are safe, reliable, and monitored until permanent repair is completed.
質問 # 43
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 # 44
What is it called when a process operates outside of documented standard operating limits?
正解：A
解説：
The correct answer is C. Abnormal Operations because, according to CCPS guidance, any condition in which a process is operating outside its documented safe operating limits or boundaries is classified as an abnormal situation. Safe operating limits are defined within operating procedures and are part of the Process Safety Information (PSI) and Operating Procedures elements of RBPS. When these limits are exceeded, the system is no longer in its intended safe state.
CCPS emphasizes that abnormal operations require immediate recognition and corrective action by trained operators. These conditions may include deviations in pressure, temperature, flow, or level beyond predefined limits. Failure to respond appropriately can escalate into major incidents.
Option A ( Consequences of Deviation ) refers to the documented outcomes if limits are exceeded, not the condition itself. Option B ( Emergency Response ) applies after escalation to an incident. Option D ( Transient Operation ) refers to temporary states such as startup or shutdown, which may still be within controlled limits.
Thus, "abnormal operations" is the correct terminology used by CCPS to describe operations outside established safe limits , highlighting the importance of operator training, alarm management, and procedural adherence to maintain process safety.
質問 # 45
Which of the following can be considered applicable inspection methods as part of an Inspection/Testing
/Preventive Maintenance program under the Asset Integrity and Reliability Element? (Select all that apply)
正解：A、B、D
解説：
The correct answers are A (Ultrasonic Thickness Measurements), C (Ultrasonic Leak Detection), and D (Positive Material Identification) because these are recognized inspection and testing techniques within CCPS' s Asset Integrity and Reliability element of RBPS. This element ensures that critical equipment is designed, fabricated, installed, and maintained to perform reliably throughout its lifecycle.
Ultrasonic Thickness Measurement (UT) is a widely used non-destructive examination (NDE) method to monitor wall loss due to corrosion or erosion. It provides quantitative data that supports fitness-for-service evaluations and remaining life assessments.
Ultrasonic Leak Detection is another diagnostic tool used to identify leaks in pressurized systems, valves, and fittings. It supports early detection of loss of containment, which is critical for preventing process safety incidents.
Positive Material Identification (PMI) verifies that the correct alloy materials are installed, helping prevent failures due to incorrect material selection-especially important in environments prone to corrosion, high temperature, or hydrogen damage.
Work Orders (B) , while essential for maintenance management, are administrative controls rather than inspection or testing methods. CCPS distinguishes between execution systems (like work orders) and actual inspection techniques used to assess equipment condition.
These inspection methods collectively support proactive identification of degradation mechanisms and ensure equipment integrity is maintained.
質問 # 46
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