Question 1 of 2707066636ee728f7522a1c517fd4

During loading and discharging operations, in addition to when the cargo tanks have been properly filled, each inert gas system must be capable of maintaining a minimum gas pressure of __________.

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Question 1 of 27070
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Q

During loading and discharging operations, in addition to when the cargo tanks have been properly filled, each inert gas system must be capable of maintaining a minimum gas pressure of __________.

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🔍 Key Concepts

• Inert gas system (IGS) operating pressure requirements during cargo operations • Difference between minimum positive pressure vs. normal operating pressure range in cargo tanks • Why keeping a slight overpressure in millimeters of water column is important for preventing air (oxygen) ingress

💭 Think About

• Think about what pressure is just high enough to keep cargo tanks safely inerted, but not so high that it risks structural stress on the tanks • Recall the typical minimum positive pressure specified in regulations for an IGS during loading/discharging and after tanks are filled • Compare the options: which value best represents a modest, continuous overpressure used mainly for safety (not for tank strength)?

✅ Before You Answer

• Verify in current regulations what minimum IGS pressure in mm water column must be maintained during cargo operations • Check that the value you choose is not the normal operating range but specifically the minimum required positive pressure • Confirm that the chosen pressure is realistic: high enough to prevent air ingress, but not so high that it would be considered excessive for routine operations