Captain Roy's Marine Training

Navigation General Knowledge Quiz # 1


A chart with a scale of 1:80,000 would fall into the category of a __________.

  A. Sailing chart
  B. Coast chart
  C. Harbor chart
  D. General chart


Which buoy is lettered?

  A. Green can buoy.
  B. Preferred channel buoy.
  C. Red lighted buoy.
  D. Green gong buoy.


A chart showing the coast of Mexico is produced by, and could be ordered from, the United States_____.

  B. Coast Guard
  C. Naval Observatory
  D. National Ocean Service


The range of tide is the __________________.

  A. distance the tide moves out from the shore.
  B. duration of time between high and low tide.
  C. difference between the heights of high and low tide.
  D. maximum depth of the water at high tide.


In calculating a running fix position, what is the minimum number of fixed objects needed to take your lines of position from?

  A. One
  B. Two
  C. Three
  D. None


A local wind which occurs during the daytime and is caused by the different rates of warming of land and water is a ________.

  A. foehn
  B. chinook
  C. land breeze
  D. sea breeze


A position obtained by applying only your vessel's course and speed to a known position is a _________________.

  A. dead reckoning position
  B. fix
  C. estimated position
  D. running fix


The instrument most commonly used to gather the data for determining the relative humidity is the _________.

  A. hydrometer
  B. psychrometer
  C. barometer
  D. anemometer


Your vessel is making way through the water at a speed of 12 knots. Your vessel traveled 30 nautical miles in 2 hours 20 minutes. What current are you experiencing?

  A. A following current at 2.0 knots
  B. A head current of 2.0 knots
  C. A following current of 0.9 knot
  D. A head current of 0.9 knot


Which of the following tables is NOT found in the U.S. Coast Pilots?

  A. Climatological table
  B. Luminous range table
  C. Meteorological table
  D. Coastwise distance table