DWO Cargo Operations & Stability

Question 1

What is the significance of the vessel's stability booklet?

Accepted Answer

It contains approved loading conditions and stability criteria that the DWO must consult during cargo operations

Answer

It is a personal diary for the ship's captain

Answer

It is an optional reference rarely used at sea

Answer

It only applies to passenger vessels

Question 2

What is free surface effect and why is it dangerous?

Accepted Answer

The reduction of stability caused by liquid moving freely in partially filled tanks

Answer

A special effect used in maritime training videos

Answer

The surface tension of seawater on the hull

Answer

A method of stabilizing cargo during rough seas

Question 3

What is the purpose of a cargo securing manual?

Accepted Answer

To provide detailed instructions for securing different types of cargo to prevent shifting at sea

Answer

To secure the ship against piracy threats

Answer

To lock cargo holds during port operations

Answer

To establish cargo insurance requirements

Question 4

What does GM (metacentric height) indicate about a vessel?

Accepted Answer

The vessel's initial stability — a measure of its resistance to heeling

Answer

The gross margin of the shipping company

Answer

The general manager's authority level

Answer

The guaranteed maximum cargo weight

Question 5

What is the load line (Plimsoll line) on a vessel?

Accepted Answer

Markings on the hull indicating the maximum draft permitted for different water conditions and seasons

Answer

A telephone connection between the bridge and engine room

Answer

The line used to secure the vessel to the dock

Answer

A marking showing where passengers should stand

Question 6

What is the Dangerous Goods (IMDG) Code?

Accepted Answer

The International Maritime Dangerous Goods Code classifying and regulating the transport of hazardous cargo by sea

Answer

A code for dangerous sections of coastline

Answer

A rating system for vessel seaworthiness

Answer

A communication code for emergency distress signals