Which statement about the carriage of coal...

Question 1 / 2066636ee728f7522a1c518a3a

Question 1 of 2066636ee728f7522a1c518a3a

Which statement about the carriage of coal is true?

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Question 1 of 20

66636ee728f7522a1c518a3a

Which statement about the carriage of coal is true?

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🔍 Key Concepts

• Spontaneous heating of coal cargoes in bulk carriers • Effect of moisture (wet vs. dry coal) on self‑heating • Difference in behavior between freshly mined (worked) coal vs. weathered coal

💭 Think About

• Think about what conditions inside a cargo hold would trap heat and gases and make a coal cargo more likely to self‑heat. • Consider whether coal that is wet or coal that is dry would allow more air circulation and oxidation through the cargo. • Ask yourself which type of coal—freshly mined or weathered and aged—still has more reactive material that can oxidize and generate heat.

✅ Before You Answer

• Verify which factor increases oxidation and heat build‑up: moisture, age of coal, or gas absorption. • Check standard references on coal cargo safety for how long the risk of spontaneous combustion remains after loading—does it drop quickly or remain for a long time? • Confirm whether weathered coal is considered more or less reactive (and therefore more or less dangerous) than freshly mined coal.

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Question 1 of 20

Which statement about the carriage of coal is true?

Most problems with spontaneous combustion will occur within 72 hours of loading and after that the risk decreases.

Coal absorbs nitrogen from the air which reacts with methane and causes spontaneous heating.

Wet coal is more liable to spontaneous heating than dry coal.

Freshly worked coal is more dangerous than weathered coal.

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Question 1 / 2066636ee728f7522a1c518a3a

Question 1 of 2066636ee728f7522a1c518a3a

Which statement about the carriage of coal is true?

Back

Question 1 of 20

66636ee728f7522a1c518a3a

Which statement about the carriage of coal is true?

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

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

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