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.

Питань 15

Час 10 min

Мова Англійська

Приклади питань

Ось кілька прикладів питань з цього тесту. Завантажте додаток GYRO, щоб пройти повний тест.

Питання 1

A ship trims about the longitudinal centre of flotation (LCF). What is the position of LCF when ship is loaded?

A slightly aft of midships

B slightly foreward of midships

C exactly midships

Питання 2

How should the deck line be used to determine freeboard?

A The distance from the upper edge of the load line (water surface) to the upper edge of the deck line.

B The distance from the upper edge of the load line (water surface) to the lower edge of the deck line.

C The distance from the upper edge of the load line (water surface) to the middle part of the deck line.

Питання 3

Second trim correction (Nemoto’s correction) is ...

A to take into account the position change of LCF (Longitudinal Centre of Flotation) as the vessel trims

B to correct the Draft Midships to the TMD (True Mean Draft) at the LCF (Longitudinal Centre of Flotation)

Питання 4

If the LCF (Longitudinal Centre of Flotation) and Trim are in the same direction regarding midships (for example, stern trim and LCF is astern from midships) the correction is positive

A True

B False

Питання 5

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.

Пройти тест. Завантажте додаток GYRO, щоб пройти цей тест та відстежувати свій прогрес.