In order to prevent the unnecessary release...

Question 1 / 270705eccef9bbacbc34ba4d456b5

Question 1 of 270705eccef9bbacbc34ba4d456b5

In order to prevent the unnecessary release of hydrocarbons to atmosphere, when taking on departure ballast, one method used is to _________.

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Question 1 of 27070

In order to prevent the unnecessary release of hydrocarbons to atmosphere, when taking on departure ballast, one method used is to _________.

🔍 Key Concepts

• Inert gas system operations during ballasting on tankers • How hydrocarbon vapors are normally contained, displaced, or vented when tanks are not gas-free • The purpose of mast risers, P/V (pressure-vacuum) valves, and common vent lines

💭 Think About

• Think about what happens to the inert gas and hydrocarbon vapors already in the tank when ballast water comes in—where do those gases go? • Which option would keep hydrocarbon vapors within the closed system instead of sending them straight to the atmosphere? • Among the choices, which one best uses existing cargo/venting arrangements to minimize direct venting of hydrocarbon vapors to open air?

✅ Before You Answer

• Identify which options cause direct venting to atmosphere (mast riser, P/V device, blowers) and which option keeps vapors within the closed venting/IG system. • Verify how a common vent line or a tank being discharged can receive displaced inert gas/vapors without unnecessary atmospheric release. • Check tanker cargo-handling best practices: during ballasting after cargo, which method is recommended to minimize hydrocarbon emissions rather than to speed up venting?

Question 1 of 27070

In order to prevent the unnecessary release of hydrocarbons to atmosphere, when taking on departure ballast, one method used is to _________.

allow entering ballast to displace the inert gas to a tank where cargo is currently being discharged

manually open the pressure/vacuum device

completely open the mast riser valve

use blowers to purge the inert gas from tanks

Question 1 / 270705eccef9bbacbc34ba4d456b5

Question 1 of 270705eccef9bbacbc34ba4d456b5

In order to prevent the unnecessary release of hydrocarbons to atmosphere, when taking on departure ballast, one method used is to _________.

Back

Question 1 of 27070

In order to prevent the unnecessary release of hydrocarbons to atmosphere, when taking on departure ballast, one method used is to _________.