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Deck Cargo Operations

Draft Survey - General Knowledge

Theoretical and practical draft survey knowledge is essential in determining of cargo quantity onboard. This test includes questions on draft survey procedure, factors affecting proper calculation, types of corrections, water density determination, ship's behaviour, draft marks reading, tanks and consumables. Designed for deck officers willing to improve and/or refresh their knowledge on the draft survey.

Questions 15
Time Limit 10 min
Language English

Sample Questions

Here are some example questions from this quiz. Download the GYRO app to take the full test.

Question 1

What tool is shown on the picture?

A Sounding tape
B Sounding pipe
C Freeboard measuring tape
D Fuel water sampling instrument

Question 2

Deadweight is ...

A difference between the Displacement and the Lightship. It includes weight of crew, cargo, fuel, ballast, fresh water and stores.
B weight of the ship including the engine, accommodation and cargo space but not including crew, cargo, fuel, ballast, fresh water and stores.
C the total weight of the ship when it is fully loaded with cargo, crew, fuel, ballast, fresh water and stores.
D “total inside space” of the ship, including areas like cargo holds, engine rooms, and crew spaces. It’s about “volume”, not weight. Determines port fees and safety rules for a ship.

Question 3

TPC - is the weight which must be loaded or discharged to change the ship’s mean draught by 0.01 m.

A True
B False

Question 4

Sounding is ...

A the distance from the bottom of a tank to the top of the liquid within it.
B the distance from the top of a tank to the bottom of the liquid within it.
C the distance from the top of a tank to the top of the liquid within it.
D the distance from the bottom of a tank to the center of buoyancy of the liquid within it.

Question 5

When draft surveys is undertaken by independent surveyor, cooperation of the ship’s officers is ...

A essential
B optional
C prohibited