What is an advantage of the spherical type...

Question 1 / 2707066636ee728f7522a1c517459

Question 1 of 2707066636ee728f7522a1c517459

What is an advantage of the spherical type containment system?

Question 1 of 27070

What is an advantage of the spherical type containment system?

🔍 Key Concepts

• LNG spherical (Moss) containment systems and why their shape matters for structural support and sloshing loads • The purpose of a secondary barrier in gas carrier design under the IGC Code • How tank height and deckhouse/forecastle arrangements affect visibility over the bow on gas carriers

💭 Think About

• Ask yourself: Is the main safety/design benefit of a spherical LNG tank more about what happens if the primary barrier leaks, or about how high/low the tanks sit relative to the bridge? • Consider whether spherical tanks typically improve, reduce, or have little effect on forward visibility compared with prismatic tanks on modern gas carriers. • Think: Which of the listed features (if any) is a recognized design advantage mentioned in gas carrier design references (IGC Code discussions, training manuals)?

✅ Before You Answer

• Verify whether Moss-type spherical tanks require a full liquid-tight secondary barrier, or if they rely on a different containment philosophy (e.g., partial drip trays and hold space monitoring). • Check if good visibility over the bow is actually cited in standard references as a design advantage of spherical tanks, given their above-deck profile. • Before choosing a combined option (like 'both' or 'neither'), be sure you can independently justify whether each individual statement (A and B) is correct or incorrect.

Question 1 of 27070

What is an advantage of the spherical type containment system?

good visibility over the bow for ship handling

the design does not require a full liquid tight secondary barrier

both "A" and "B"

neither "A" or "B"

Question 1 / 2707066636ee728f7522a1c517459

Question 1 of 2707066636ee728f7522a1c517459

What is an advantage of the spherical type containment system?

Back

Question 1 of 27070

What is an advantage of the spherical type containment system?