According to regulations, which grade(s) of...

Question 1 / 205eccef9cbacbc34ba4d45c0c

Question 1 of 205eccef9cbacbc34ba4d45c0c

According to regulations, which grade(s) of cargo may be carried in tanks that are vented only with gooseneck vents and flame screens?

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Question 1 of 20

5eccef9cbacbc34ba4d45c0c

According to regulations, which grade(s) of cargo may be carried in tanks that are vented only with gooseneck vents and flame screens?

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🔍 Key Concepts

• Cargo grade definitions (Grades A, B, C, D, E) under 46 CFR for flammable and combustible liquids • Differences between open gooseneck vents with flame screens and pressure-vacuum (PV) valves • Which cargo grades are considered most hazardous and therefore require more restrictive venting arrangements

💭 Think About

• First, mentally rank cargo grades A through E from most hazardous (highest vapor pressure/lowest flash point) to least hazardous. Which grades are allowed the simplest venting system? • Ask yourself: Would the highest-hazard cargoes be allowed on a tank with only a gooseneck and flame screen, or would they require more sophisticated venting and protection? • Look at which grades are typically allowed in cargo tanks with open vents versus those that must have PV valves and other safeguards.

✅ Before You Answer

• Verify in the regulations which grades are defined as flammable liquids with very low flash points and high vapor pressures—these usually need tighter controls than just a gooseneck and screen. • Confirm which cargo grades are expressly allowed to use open vents with flame screens rather than PV valves in 46 CFR Subchapter D (Tank Vessels). • Before choosing, eliminate any option that includes grades you know are classified as requiring closed or controlled venting systems because of their high vapor pressure.

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Question 1 of 20

According to regulations, which grade(s) of cargo may be carried in tanks that are vented only with gooseneck vents and flame screens?

B only

B or C

C or D

D or E

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Question 1 / 205eccef9cbacbc34ba4d45c0c

Question 1 of 205eccef9cbacbc34ba4d45c0c

According to regulations, which grade(s) of cargo may be carried in tanks that are vented only with gooseneck vents and flame screens?

Back

Question 1 of 20

5eccef9cbacbc34ba4d45c0c

According to regulations, which grade(s) of cargo may be carried in tanks that are vented only with gooseneck vents and flame screens?

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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