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- First Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q516 - Engineering Safety & Environmental Protection
291. In order for you to operate your vessels crude oil wash system, the cargo tanks to be washed must be which of the following?
Crude oil washing requires cargo tanks to be in an inert condition, maintaining a non-flammable atmosphere with low oxygen content and positive inert gas pressure to prevent ignition of hydrocarbon vapors. This condition is mandated by international regulations and U.S. tank vessel requirements, and is essential for safe operation during discharge.
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