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 is the meaning of letters V and L on the Plimsoll Line?

A Letters indicating the registration authority / classification society

B Letters indicating the ship's flag state authority / port state authority

C Letters indicating the ship's owners initials

Question 2

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

A essential

B optional

C prohibited

Question 3

1 m3 of salt water =

A 1.025 tonne

B 1 tonne

C in the range between 1.001 and 1.005 tonne

Question 4

To which depth should the sample bucket be lowered to obtain a proper water density?

A Half draft depth

B Half water depth

C Half line length

Question 5

What is prohibited to do during draft survey?

A Internal transfer of ballast (tank-to-tank)

B Take bunker, fresh water

C Open/close hatch covers (if this can influence ship's trim and list)

D Perform main engine repairs

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