Ship Construction and Cargo Flashcards

What is the 'camber' of a ship's deck?

Answer: The transverse curvature of the deck, higher at the centerline than at the sides

Camber (or round of beam) is the athwartship curvature of a deck, sloping from the centerline down to the sides to aid water drainage.

What is the function of scuppers on a vessel?

Answer: To drain water from the deck overboard

Scuppers are openings in the ship's side at deck level that allow water accumulated on deck to drain overboard.

Dangerous goods classified as 'Class 2' under the IMDG Code are:

Answer: Gases

IMDG Class 2 covers gases, including flammable gases (2.1), non-flammable non-toxic gases (2.2), and toxic gases (2.3).

The 'garboard strake' refers to:

Answer: The row of hull plating immediately adjacent to the keel

The garboard strake is the first row of hull plating on each side immediately adjacent to and running alongside the keel.

When stowing cargo, what does 'dunnage' refer to?

Answer: Wood, matting, or other material placed between or under cargo to protect it and allow air circulation

Dunnage is material (typically wood boards or matting) placed under or between cargo to prevent damage, allow ventilation, and provide drainage.

What is the 'displacement' of a vessel?

Answer: The weight of water displaced by the hull, equal to the total weight of the vessel

Displacement is the weight of water displaced by the submerged hull, which by Archimedes' principle equals the total weight of the vessel.

What is the purpose of a ship's 'stripping pump' in cargo operations?

Answer: To remove the final residues of liquid cargo from tanks that main cargo pumps cannot reach

A stripping pump removes the last small quantities of liquid cargo remaining in a tank after the main cargo pumps can no longer function efficiently.