来自 昏昏睡睡HSE · From Drowsy HSE
CSP DAILY LEARNING · DAY 181
本课只做一件事：用 5 道题检验「FTA 与事件树」，并把错的那几道归到具体原因上。
Test Fault Tree & Event Tree with five items and trace every miss to a specific cause.
本课不涉及：不出新知识点——只检验前四课学过的内容。
Not covered here: No new material — only what lessons 1 to 4 covered.
本课目标 | Learning objectives
- 5 题至少答对 4 题，并说清每题依据
- 把错题归为「词不懂 / 问句读错 / 依据不足」三类之一
- 说出本块学到的三条可迁移结论
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五题复盘 | Five-question recap
选出答案并提交，查看解析与依据。/ Pick an answer, submit, and read the rationale.
1. 故障树的分析方向是？
The fault tree works which direction?
2. AND 门与 OR 门的概率近似分别是？
The approximations for AND and OR gates are?
3. 一阶最小割集意味着？
An order-one minimal cut set means?
4. 两条 OR 支路共用同一电源，直接相加的结果会？
Two OR branches share one power supply. Naive addition will?
5. 事件树最坏可信后果对应哪条路径？
Which event-tree path is the worst credible outcome?
错因归类 | Sort your misses
- AND/OR 门用反 → 概率差百倍，屏障设计跟着错Swapping AND/OR gates → Probabilities off by two orders of magnitude, and barrier design follows the error
- OR 支路直接相加 → 共因未计入，顶事件概率被低估Adding OR branches directly → Common causes uncounted; top-event probability underestimated
- 屏障越多越安心 → 屏障不独立时，多道等于一道Feeling safer with more barriers → When barriers aren't independent, ten barriers equal one
接下来学什么：下一块（Day 182–186）继续 Domain 3：定量风险与 LOPA——IPL 三条件、PFD 量级、可容风险标准与保险转移。
Next block (Days 182–186), still Domain 3: quantitative risk and LOPA — IPL tests, PFD magnitudes, tolerable-risk criteria and insurance transfer.
学习打卡与笔记 | Progress & notes
已完成 0/4 项 / 0/4 tasks complete
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可靠来源 | Official references
BCSP — CSP Examination Blueprint (CSP11)
BCSP — Official Self-Assessments
BCSP — Certified Safety Professional (CSP)
Pearson VUE — CSP 考试预约 / Scheduling
本课为一般性学习资料，不替代现场专业评估、法规要求或组织程序。/ Educational content only.
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