Module 3: Charts and Pubs Flashcards
Navigators measure distance using a chart’s lines of ________ and never lines of __________.
Latitude
Never Longitude
The useful latitude limit for Mercator projection is about _______.
80 degrees
Regardless of chart projection 1 nautical mile is equal to 1 ________.
Minute of Latitude
Land features on a chart are measured from _______.
Mean High Water (MHW)
_________ is a master list of all symbols and terms found on a chart.
Chart No 1
The ___________ contains important information relevant to maritime operations in a region and should be used as a supplement to charts.
Coast Pilot
Which government agency publishes the U.S. Coast Pilot?
A. U.S. Coast Guard
B. National Ocean Service
C. National Geospatial-Intelligence Agency
D. Army Corps of Engineers
B. National Ocean Service
The depth of water on a chart is indicated as 23 meters. This is equal to __________.
A. 11.5 fathoms
B. 12.6 fathoms
C. 69.0 feet
D. 78.6 feet
B. 12.6 fathoms
Formula: Divide by 1.8
The compass rose on a nautical chart indicates both variation and __________.
A. Deviation
B. Annual rate of variation change
C. Compass error
D. Precession
B. Annual rate of variation change
Notice to Mariners are published______________.
A. Daily
B. Weekly
C. Monthly
D. Yearly
B. Weekly
A set of great circles which pass through the north and south geographic poles are called_____________.
A. Meridians of longitude
B. Parallels of latitude
C. Rhumb lines
D. Equators
A. Meridians of longitude
A method of representing a spherical, three dimensional surface on a plane onto a two dimensional sheet of paper is called a__________________.
A. Map
B. Chart
C. Projection
D. Mirror Image
C. Projection
An angle between a line connecting one point with another and a base is called a__________________.
A. Tangent Plane
B. Direction
C. Parallel
D. Meridian
B. Direction
The compass rose on a chart indicates both true and north magnetic directions.
A. True
B. False
A. True
On salt water, distances are measured in___________________.
A. Statue Miles
B. Kilometers
C. Fathoms
D. Nautical Miles
D. Nautical Miles
NOS Charts of 1:40,000 or larger scale carry a________________.
A. Logarithmic Speed Scale
B. Nautical mile Scale
C. Yard Scale
D. Statue Mile Scale
A. Logarithmic Speed Scale
Who publishes charts of the high seas and foreign waters based on its own and other nations surveys?
A. NOAA
B. NOS
C. NGA
D. NIMA
C. NGA
Some basic information which is included on a chart may include_________________.
A. Type of projection
B. Scale
C. Unit of depth measurement
D. All of the above
D. All of the above
You should use only the latest edition of a chart to insure safe navigation?
A. True
B. False
A. True
The edition number and date, month and year of each NOS chart are printed___________________.
A. Upper right corner
B. Lower right corner
C. Upper left corner
D. Lower left corner
D. Lower left corner
One nautical mile equals ___________________.
A. 10 seconds of longitude.
B. 5 minutes of longitude.
C. 10 minutes of latitude.
D. 1 minute of latitude.
D. 1 minute of latitude.
The color on a chart which is ideal for reading during night time navigation is________________.
A. Red
B. Blue
C. Magenta
D. Green
C. Magenta
The publication which can be used for reference in regards to specific abbreviations on a chart is_________________.
A. USCG Light List
B. Coast Pilot
C. Chart 1
D. Tide and Current Tables
C. Chart 1
The most common projection use for ocean and coastal areas is called a _____________________.
A. Polyconic Projection
B. Tangent Plane Projection
C. Mercator Projection
D. Pilot Projection
C. Mercator Projection
