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Sailaway - Questionnaire - Second Part - Introduction to navigation

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

  With the Mercator projection  
 
  surfaces are not altered.
  angles are not altered
 

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

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

  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 ?  
 
  190°
  170°
 

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

  When using a navigational chart with depth soundings in fathoms and feet, what does a figure like 18,3 mean ?  
 
  18 fathoms and 3 feet
  18,3 meters
  18,3 fathoms
  183 feet
 

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

  Maximum Longitude is  
 
  360°
  90°
  0°
  180°