Following cargo loading operations, your...

Question 1 / 205eccef9fbacbc34ba4d46a13

Question 1 of 205eccef9fbacbc34ba4d46a13

Following cargo loading operations, your vessel is experiencing an excessive at-sea sagging bending stress as shown in the illustration. What should you do to reduce the bending moment? Illustration SF-0047

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🔍 Key Concepts

• Relationship between weight distribution and bending moment (where the downward and upward forces act in the illustration) • How sagging in the picture is created by the combination of cargo weight and buoyancy along the length of the ship • Effect of adding or removing ballast in amidships vs. peak tanks on the ship’s longitudinal bending

💭 Think About

• In the sagging condition shown, are the largest downward forces (weights) concentrated more toward the middle or toward the ends of the ship? • Which ballast action would tend to counter that bending: increasing weight where the hull is already pushed down, or increasing weight where it is lifted up? • For each answer choice, ask yourself: does this move weight toward the middle of the ship or toward the ends, and will that make the sagging moment larger or smaller?

✅ Before You Answer

• Identify in the illustration where the downward (weight) and upward (buoyancy) arrows are strongest, and match that to a sagging condition. • Eliminate any option that would increase weight in the area already bending down in the sagging condition. • Choose the option that tends to redistribute weight to oppose the existing bend, not reinforce it (think of trying to straighten a bent beam).

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Question 1 of 20

Remove ballast from an amidships tank.

Add ballast to the forepeak and after peak tanks.

Remove ballast to the after peak tank.

Add ballast to an amidships tank.

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Question 1 / 205eccef9fbacbc34ba4d46a13

Question 1 of 205eccef9fbacbc34ba4d46a13

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Question 1 of 20

5eccef9fbacbc34ba4d46a13

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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