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📈 Telegram 频道 Study Materials for MARINERS™ 的分析概览
频道 Study Materials for MARINERS™ (@marinersstudyguide) 英语 语言赛道中的 是活跃参与者。目前社区聚集了 13 839 名订阅者，在 其他 类别中位列第 ，并在 印度 地区排名第 57 829 位。
📊 受众指标与增长动态
自 невідомо 创建以来，项目保持高速增长，吸引了 13 839 名订阅者。
根据 08 九月, 2024 的最新数据，频道保持稳定运转。过去 30 天订阅人数变化为 0，过去 24 小时变化为 0，整体触达仍然可观。
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作者将该频道定位为表达主观观点的平台：
“All Marine Related EBooks For
Class 1 & Class 2 Candidates 👇
https://t.me/marinersstudyguide”
凭借高频更新（最新数据采集于 09 九月, 2024），频道始终保持新鲜度与高覆盖。分析显示受众积极互动，使其成为 其他 类别中的关键影响点。
13 839
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无数据7 天
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Mumbai MMD Assessment form for Cl2 and Cl4
♦️Treatments for Moderately Rated Auxiliary Boiler:
[Medium and Low Pressure Boilers]
🔘(1) Phosphate Treatment:
1. AGK 100 or Adjunct B is used.
2. Combat scale-forming salts to form non-adherent sludge.
3. Give Alkalinity to reduce corrosion.
4. Form Iron Phosphate Film on internal surfaces, as protection against corrosion.
🔘(2) Caustic Soda Treatment: [NaOH]
1. Maintain correct pH value and required Alkalinity.
2. Precipitate scale-forming Permanent Hardness Salts. [Chlorides and Sulphates of Calcium and Magnesium: They are in Acid nature. ]
3. Remove Temporary Hardness Salts. [Bicarbonates of Calcium and Magnesium: They are slightly in Alkaline nature.]
4. Excess concentration of NaOH may cause Caustic Cracking of metal.
🔘(3) Soda Ash Treatment: [Na₂CO₃]
1. Precipitate scale-forming Permanent Hardness Salts, (Non-Alkaline Hardness Salts) as Calcium Carbonate, CaCO₃.
2. Produce NaOH, to give required Alkalinity.
🔘(4) Dissolved Oxygen Treatment:
1. Two chemicals, Hydrazine N₂H₄, and Sodium Sulphite Na₂SO₃ are used to remove dissolve O₂.
🔘(5) Liquid Coagulant Treatment:
1. High molecular weight, colourless solution, likes Sodium Aluminate or Starch is used.
2. Coagulate oil droplets and Suspended Solids, and settle them at low points.
3. They can be Blown-down.
🔘(6) Blow-Down Treatment:
1. Integral part of water treatment program, as it removes solids, which are results of chemical conversion of salts and impurities in water.
2. Surface Blow-down or Scumming is quick removal of solids, without wasting feed water.
3. Bottom Blow-down is vital, when solids become dense, heavy and remain at boiler bottom, despite circulation.
4. Daily short blows of top and bottom are necessary.
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USCG MCQ Question & Answers for CL 4
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Repost from Mariner Baba
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