MCA CoC Navigation and Chartwork 2

Question 1

A vessel observes a lighthouse bearing 270°(T) at 2000hrs and 315°(T) at 2030hrs while maintaining a course of 000°(T) at 10 knots. What is the approximate distance off the lighthouse at 2030hrs?

Accepted Answer

5 nautical miles

Answer

3 nautical miles

Answer

7 nautical miles

Answer

10 nautical miles

Question 2

What is the purpose of applying the 'cocked hat' principle when taking a three-bearing fix?

Accepted Answer

To identify potential systematic errors and estimate the most probable position within the triangle formed

Answer

To confirm the vessel is on the correct heading

Answer

To calculate the speed over the ground

Answer

To determine the tidal stream direction

Question 3

In UK waters, what do the abbreviations 'MHWS' and 'MLWS' stand for on Admiralty charts, and what is their significance for navigation?

Accepted Answer

Mean High Water Springs and Mean Low Water Springs — the average spring tide levels used for clearance calculations

Answer

Maximum High Water Springs and Minimum Low Water Springs — extreme recorded values

Answer

Measured High Water Seasonal and Measured Low Water Seasonal — seasonal averages

Answer

Marked High Water Survey and Marked Low Water Survey — surveyed water levels

Question 4

A vessel's compass heading is 130°(C). The variation is 4°W and the deviation for that heading is 2°E. What is the true heading?

Accepted Answer

128°(T)

Answer

132°(T)

Answer

134°(T)

Answer

126°(T)

Question 5

What is the primary purpose of a passage plan as required by the MCA and SOLAS regulations?

Accepted Answer

To plan the intended route from berth to berth, identifying hazards, abort points, and contingencies

Answer

To calculate fuel consumption for the voyage

Answer

To satisfy port state control inspections only

Answer

To determine crew watch schedules

Question 6

When approaching a port in poor visibility, the vessel's ECDIS shows the route crosses an area marked with a magenta 'T' symbol. What does this indicate?

Accepted Answer

An area where VTS (Vessel Traffic Service) reporting is required

Answer

A traffic separation scheme

Answer

A recommended anchorage area

Answer

A submarine cable zone