Bridge Navigation & Deck Operations

Navigation Fundamentals Knowledge

This test covers key aspects of navigation, including the fundamentals of orientation, determining directions at sea, working with compasses, courses and bearings, as well as units of length measurement, ship speed, and the principles of their calculation.

Questions 15

Time Limit 9 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 causes the deviation of a magnetic compass?

A Due to the distortion of the Earth's magnetic field by the ship's magnetic field.

B Due to a change in magnetic latitude.

C Due to the installation of additional compensating magnets.

D Due to a prolonged sea passage.

Question 2

The dihedral angle of the true course is formed between?

A The northern part of the true meridian plane and the centerline of the vessel.

B The northern part of the magnetic meridian plane and the centerline of the vessel.

C The northern part of the compass meridian plane and the centerline of the vessel.

D The northern part of the gyrocompass meridian plane and the centerline of the vessel.

Question 3

Is the position of the magnetic poles constant?

A Not constant.

B Constant.

Question 4

Magnetic declination is the horizontal angle by which…?

A The plane of the magnetic meridian deviates from the plane of the true meridian at a given point.

B The plane of the compass meridian deviates from the plane of the true meridian at a given point.

C The plane of the true meridian deviates from the plane of the magnetic meridian at a given point.

Question 5

If the vessel was sailing on a course of 180° at a speed of 10 knots, what will be the difference in longitude after 1 hour of navigation?

A 0°00′.

B 0°01′.

C 0°10′.

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