Your vessel is loading cargo and you are...

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Question 1 of 2066636ef028f7522a1c520e04

Your vessel is loading cargo and you are monitoring the stability and trim. Currently, the Longitudinal Center of Buoyancy (LCB) is vertically aligned and below the Longitudinal Center of Gravity (LCG). The Longitudinal Center of Flotation (LCF) is aft of both of these. How is the vessel trimming?

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Question 1 of 20

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🔍 Key Concepts

• Longitudinal Center of Gravity (LCG) vs Longitudinal Center of Buoyancy (LCB) and how their relative fore‑and‑aft positions create trimming moments • The Longitudinal Center of Flotation (LCF) as the pivot point about which the ship trims • Whether trim is described as by the bow or by the stern, and which point it is said to trim about

💭 Think About

• First, imagine which point acts like the hinge or pivot when a ship trims: is it the LCB or the LCF? • Next, think about what happens when the LCG is not in the same fore‑and‑aft position as the LCB: which end (bow or stern) will go down? • Finally, if the LCF is aft of both LCG and LCB, visualize which way the vessel must rotate around that point to satisfy the relative positions given.

✅ Before You Answer

• Make sure you know that trim is rotation in the longitudinal plane (fore‑and‑aft), not a vertical shift up or down as a whole • Confirm which point is typically considered the pivot for trimming: LCF or LCB • Double‑check whether the description “trim by the bow” or “trim by the stern” is about which end goes deeper in the water.

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