TEST How much do you know about charting? Put yourself to the test!


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Here’s a point-blank test on charting & related, to take you back to the days of the boat license exam! Let us know how many right answers you totaled with a nice comment: and it is not valid to document on the web, be honest!

1 – The instrument that measures the speed of the boat is called:
A) solcometer;
B) speedometer;
(C) countails.

2 – Mercator projection allows for nautical charts in which, compared to the reality on the earth’s surface, are preserved:
A) the proportions between the sea areas crossed;
B) the distances between points that are at different latitudes;
C) the same value as the angles between meridians and parallels.

3 – To one degree of latitude correspond:
(A) 60 nautical miles;
B) 1852 meters;
C) 18,518 meters, or 10 miles.

4 – The meridians in total are:
A) 180;
B) 360;
C) 90.

5 – The Breton rapporteur allows:
A) determine routes and surveys;
B) help in the calculation of boat speed;
C) establish the relationship between 1° longitude on the map and the actual distance traveled.

6 – Without consulting the map, but by simple reasoning, could you tell which of these coordinates locate the closest point to Rome:
(A) 12° 18′ N – 43° 17′ W;
(B) 14° 02′ S – 32° 48′ E;
(C) 40° 12′ N – 16° 35′ E.

7 – Coastal maps have a scale of approx:
A) 1:1.000.000;
B) 1:100.000;
C) 1:10.000.

8 – How the bottom within the 10-meter bathymetry is highlighted on nautical charts:
A) in continuous blue color;
B) with a thin hatching;
C) in pale purple color.

9 – Given a ship point P, the latitude is determined on the plane:
A) on which lies the parallel passing through P;
B) on which lies the meridian passing throughP;
C) on the plane passing through Greenwich.

10 – On nautical charts, distances shall be determined on the scales shown:
A) on the left and right sides;
B) on the top and bottom sides;
C) on the graduated rose.


This test is from our “Practical Navigation” handbook
in the “Secrets of Going to Sea” series, now on superoffer. In this 290-page volume we have rounded up everything that may be essential for a good basic knowledge: from setting a course to rules for preventing collisions at sea; from mooring and anchoring maneuvers to knowledge of the main weather phenomena, going so far as to work out a local “weather” forecast. To end with notions for dealing with bad weather. “Practical Navigation” is aimed at those who make long-shore sailings, as well as those who want to take on challenging deep-sea cruises. Indeed, this is the baggage that every skipper must possess, whatever type of vessel he or she will be sailing with. The exposition of every single word in this volume comes from the practical experience of thousands of miles of sailing.




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