Final week quiz

What is meant by "Free Surface Effect" in ship stability?

• A.      The effect of sea waves on the deck

• A.      The movement of dry cargo during loading

• A.      The shifting of liquid in a partially filled tank as the ship heels

• A.      The transfer of crew weight from one side of the ship to another

Why is a tank with a large transverse surface area more dangerous?

• A.      It creates a larger moment of inertia, increasing free surface effect

• A.      It holds less liquid

• A.      It is harder to clean

• A.      It is more prone to rust

What happens to the liquid in a partially filled tank when the ship heels?

• A.      It evaporates

• A.      It forms bubbles

• A.      It freezes

• A.      It shifts toward the lower side

What does damage stability refer to?

• A.      Hull reinforcement materials

• A.      Prevention of collision damage

• A.      The ship’s ability to stay afloat after flooding

• A.      The ship’s engine reliability

Which international regulation governs damage stability?

• A.      Load Line Convention

• A.      MARPOL Annex IV

• A.      SOLAS Chapter II-1

• A.      STCW Code

What does “watertight subdivision” mean?

• A.      A method to reduce fuel cost

• A.      Division of a ship into flood-resistant compartments

• A.       Load distribution system

• A.      The ship's paint scheme

What is the role of the Damage Stability Booklet?

• A.      Monitor satellite signals

• A.      Provide flooding scenarios and stability information

• A.      Record engine temperatures

• A.      Store crew contact lists

Which onboard tool simulates flooding and calculates GM and trim?

• A.      ECDIS

• A.      Echo sounder

• A.      Loadicator

• A.      Radar system

Which liquid poses more danger in terms of free surface effect?

• A.      Fresh water

• A.      Fuel oil

• A.      Rainwater

• A.      Seawater

A vessel shows a reduction in GM after bunkering. What is the likely reason?

• A.      Bunkered fuel created free surface in the tank

• A.      Crew changes during refueling

• A.      The ship became lighter

• A.      The weather changed