来自 昏昏睡睡HSE · From Drowsy HSE
CSP DAILY LEARNING · DAY 201
本课只做一件事：用 5 道题检验「噪声与听力保护」，并把错的那几道归到具体原因上。
Test Noise & Hearing Conservation 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. OSHA 交换率与 PEL 是？
OSHA's exchange rate and PEL are?
2. 95 dBA（OSHA）允许接触？
At 95 dBA under OSHA the allowed time is?
3. 85 dBA 行动级触发的义务不含？
Which duty is NOT triggered at the 85 dBA action level?
4. STS 的定义是？
An STS is defined as?
5. NRR 29 耳塞的 OSHA 实际降噪约？
The OSHA effective attenuation of an NRR 29 plug is about?
错因归类 | Sort your misses
- OSHA 与 NIOSH 数字混用 → 5 dB/3 dB 与各自限值必须整套使用Mixing OSHA and NIOSH numbers → the 5 dB/3 dB exchange rates and their respective limits must be used as complete sets
- 85 以下零义务 → 行动级一过，计划义务即刻启动Below 85: no obligation → once the Action Level is crossed, program obligations kick in immediately
- NRR 照抄当降噪 → (NRR−7)/2 是 OSHA 口径，现实还要再折Copying NRR as-is for attenuation → (NRR−7)/2 is OSHA's method; real-world protection is lower still
接下来学什么：下一块（Day 202–206）继续 Domain 6：辐射与极端环境——电离辐射三原则、非电离辐射、高温 WBGT 与极寒作业。
Next block (Days 202–206), still Domain 6: radiation and extreme environments — the ionizing triad, non-ionizing sources, WBGT heat stress and cold work.
学习打卡与笔记 | Progress & notes
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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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