Exam Question
(a) What is free surface effect?
(b) Explain the methods used to reduce the free surface effect in ship construction and while operating the ship.
Class 4 (4th Engineer)
SC&S
📅 Jan 2024
Reference Answer
### (a) What is Free Surface Effect?
**1. Definition:**
The Free Surface Effect is a phenomenon that occurs when a tank or compartment on a ship is partially filled with a liquid (i.e., it is a "slack tank"). The free surface of this liquid behaves like a pendulum as the ship heels, causing a reduction in the ship's initial stability.
**2. Mechanism:**
**1. Definition:**
The Free Surface Effect is a phenomenon that occurs when a tank or compartment on a ship is partially filled with a liquid (i.e., it is a "slack tank"). The free surface of this liquid behaves like a pendulum as the ship heels, causing a reduction in the ship's initial stability.
**2. Mechanism:**
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