A portion of the cargo of an LNG carrier...

Question 1 / 205eccef9dbacbc34ba4d45d19

Question 1 of 205eccef9dbacbc34ba4d45d19

A portion of the cargo of an LNG carrier boils off during each voyage. How is the cargo boil off normally handled?

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Question 1 of 20

5eccef9dbacbc34ba4d45d19

A portion of the cargo of an LNG carrier boils off during each voyage. How is the cargo boil off normally handled?

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🔍 Key Concepts

• How LNG (liquefied natural gas) carriers use boil‑off gas (BOG) during normal operations • Whether it is acceptable on gas carriers to vent flammable gas to atmosphere in normal service • Typical use of cargo boil‑off as a fuel source on steam turbine LNG carriers

💭 Think About

• Think about what shipboard system can safely and economically use a steady flow of flammable gas during the entire voyage. • Ask yourself: is it practical to recompress and reliquefy all boil‑off on every LNG carrier, or is there a simpler routine use for that gas? • Consider which choice would match both safety (no gas clouds on deck) and energy efficiency (not wasting fuel).

✅ Before You Answer

• Eliminate any option that would routinely discharge flammable gas to atmosphere in normal operation. • Consider whether nitrogen is normally mixed with cargo gas on LNG carriers or if the cargo must remain very pure. • Recall that traditional LNG carriers have large steam plants—how might they fuel their boilers during the voyage?

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Question 1 of 20

A portion of the cargo of an LNG carrier boils off during each voyage. How is the cargo boil off normally handled?

Compressed, condensed, and return to the cargo tanks.

Vented to the atmosphere.

Burned in the boilers.

Mixed with nitrogen and recirculated through the primary barrier.

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Question 1 / 205eccef9dbacbc34ba4d45d19

Question 1 of 205eccef9dbacbc34ba4d45d19

A portion of the cargo of an LNG carrier boils off during each voyage. How is the cargo boil off normally handled?

Back

Question 1 of 20

5eccef9dbacbc34ba4d45d19

A portion of the cargo of an LNG carrier boils off during each voyage. How is the cargo boil off normally handled?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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