In case of a LNG leak from a liquid header...

Question 1 / 270705eccef9dbacbc34ba4d45d25

Question 1 of 270705eccef9dbacbc34ba4d45d25

In case of a LNG leak from a liquid header flanged connection, what is the first precautionary action to take?

Question 1 of 27070

In case of a LNG leak from a liquid header flanged connection, what is the first precautionary action to take?

🔍 Key Concepts

• Immediate safety precautions during LNG (liquefied natural gas) cargo operations • Behavior of LNG vapor (cold, heavier-than-air gas) and its fire/explosion risk • The purpose of emergency cargo shutdown vs. repair actions

💭 Think About

• Ask yourself: In an emergency leak situation, should you try to fix the hardware right away, or first control/stop the hazardous operation that is causing the leak? • Consider what happens to LNG and its vapors if you add water beneath a very cold leak—does this remove the hazard or potentially spread vapors? • Think about the correct order: secure the operation, control the hazard, then notify outside agencies. Which choice reflects that order?

✅ Before You Answer

• Identify which option immediately reduces the flow of LNG and therefore the size of the leak. • Check which options might increase risk (e.g., working near a live leak, creating more vapor, delaying shutdown). • Verify which action is normally required by ship/terminal emergency procedures as the first step when a leak is detected.

Question 1 of 27070

In case of a LNG leak from a liquid header flanged connection, what is the first precautionary action to take?

Call the Coast Guard

Tighten the flange bolts until the leak stops.

Flood the area under the leak with water.

Stop cargo transfer until the cause of the leak is corrected.

Question 1 / 270705eccef9dbacbc34ba4d45d25

Question 1 of 270705eccef9dbacbc34ba4d45d25

In case of a LNG leak from a liquid header flanged connection, what is the first precautionary action to take?

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Question 1 of 27070

In case of a LNG leak from a liquid header flanged connection, what is the first precautionary action to take?