During loading, what is the minimum pressure...

Question 1 / 2707066636ee728f7522a1c517fda

Question 1 of 2707066636ee728f7522a1c517fda

During loading, what is the minimum pressure required to be maintained by the inert gas system on cargo tanks?

Question 1 of 27070

During loading, what is the minimum pressure required to be maintained by the inert gas system on cargo tanks?

🔍 Key Concepts

• Inert gas system operating limits during cargo loading on tankers • Difference between minimum positive pressure to prevent air ingress vs. much higher pressures used for other systems • Typical safe operating range in inches of water gauge for inert gas pressure in cargo tanks

💭 Think About

• Think about why we keep a slight positive pressure of inert gas in cargo tanks during loading. How much pressure is needed to keep air out without overstressing the tank structure? • Compare each option: which ones seem more like a small pressure used for control and safety, and which look like they could be excessively high for a large tank? • Recall from your tanker operations or exam prep materials: what is the normal inert gas deck main pressure range, and where within that range is the specified minimum during loading?

✅ Before You Answer

• Verify from your tanker operations or inert gas system manual what the normal pressure range is in inches of water gauge. • Eliminate any answer choices that would represent a very large pressure likely to cause structural or operational problems in cargo tanks. • Confirm that the value you choose represents a slight but clearly positive pressure above atmospheric, not zero or negative.

Question 1 of 27070

During loading, what is the minimum pressure required to be maintained by the inert gas system on cargo tanks?

2" water gauge

4" water gauge

20" water gauge

40" water gauge

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Question 1 / 2707066636ee728f7522a1c517fda

Question 1 of 2707066636ee728f7522a1c517fda

During loading, what is the minimum pressure required to be maintained by the inert gas system on cargo tanks?

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Question 1 of 27070

During loading, what is the minimum pressure required to be maintained by the inert gas system on cargo tanks?