Testez vos connaissances
www.sailaway.be - info@sailaway.be
Sailaway - Questionnaire - Second Part - Introduction to navigation

  Second Part - Introduction to navigation  
 
  18 61,23' N - 061 13,76'W. Are these coordinates plausible ?  
 
  Yes.
  No.
 

  When using Mercator projection one measures distances on  
 
  on the scale of Longitudes.
  on the scale of Latitudes.
  indifferently on the scale of Latitudes or Longitudes.
 

  The unit used at sea for distances is the Nautical Mile which represents  
 
  One minute of Latitude.
  One minute of Longitude.
 

  A variation of 5W is indicated on the navigational chart. The helmsman affirms he is following a 135 course. What do I trace on the chart ?  
 
  130°
  140°
  135°
 

  After having calculated a course of 180 I want to give indications to the helmsman. The variation in the area is 10W. What do I tell the helmsman ?  
 
  170°
  190°
 

  The variation of the area is to be found  
 
  in the pilot book
  In the almanac.
  in the compass rose on the navigational chart.
 

  Depth soundings are always indicated in meters.  
 
  False
  True
 

  The height of the water in the harbour is 5,5m. How much water will I have on a sounding of 2,5 underligned ?  
 
  8 meters
  3 meters.
  5,5 meters
 

  050N 13,453'N - 002 56,789'W. Could you confirm these coordinates are reported correctly ?  
 
  No
  Yes.
 

  Maximum Longitude is  
 
  0°
  360°
  90°
  180°