On small passenger vessels a gasoline tank...

Question 1 / 2066636ee728f7522a1c5189a0

Question 1 of 2066636ee728f7522a1c5189a0

On small passenger vessels a gasoline tank vent pipe must __________.

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Question 1 of 20

66636ee728f7522a1c5189a0

On small passenger vessels a gasoline tank vent pipe must __________.

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🔍 Key Concepts

• Gasoline fuel tank venting requirements on small passenger vessels in 46 CFR Subchapter T • Purpose of a vent pipe U-bend and termination above the weather deck • Minimum vent pipe size and point of connection on the tank

💭 Think About

• Ask yourself why gasoline tanks must be able to freely breathe in and out, and what could happen if the vent were too small or poorly located. • Think about how rainwater or seawater might enter a vent, and what design features (like a U-bend/gooseneck and location above deck) are used to prevent that. • Consider whether a safe vent system would normally connect at the highest point of the tank or somewhere lower, and why that matters for vapors and expansion.

✅ Before You Answer

• Check in 46 CFR that there is a specific minimum vent size, often referenced to about 19 mm (3/4 in) OD tubing. • Verify that the regulations require the vent to be connected to the tank at its highest point to avoid vapor or liquid traps. • Confirm whether the rules call for the vent to terminate in a U-bend (gooseneck) above the weather deck to reduce the chance of water ingress and fuel spillage.

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Question 1 of 20

On small passenger vessels a gasoline tank vent pipe must __________.

terminate in a U-bend as high above the weather deck as practicable

have a cross sectional area not less than that of 19 millimeters OD tubing.

be connected to the tank at its highest point

All of the above

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Question 1 / 2066636ee728f7522a1c5189a0

Question 1 of 2066636ee728f7522a1c5189a0

On small passenger vessels a gasoline tank vent pipe must __________.

Back

Question 1 of 20

66636ee728f7522a1c5189a0

On small passenger vessels a gasoline tank vent pipe must __________.

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

— No credit card needed