piloting, dead reckoning, celestial navigation, radionavigation - correct answer ✔✔Primary Areas of
Navigation:
____________ -- in sight of land
_______ __________ -- predicts where you'll be be, given course and speed
_________ ________ -- out of sight of land, reference to stars
____________ -- navigation by satellite and GPS
piloting - correct answer ✔✔term for the movement of a vessel by referring to landmarks, aids to
navigation, depth sounding, and radionavigation, and terrestrial objects
great circles - correct answer ✔✔___________ __________ is explaining the LONGITUDE lines and the
EQUATOR --> maximum circumference of the earth
- divides earth into 2 equal parts (from center)
W and E - correct answer ✔✔Longitude uses which directions
N and S - correct answer ✔✔Latitude uses which directions
small circles - correct answer ✔✔_______ _______ are explaining all other LATITUDES
latitude - correct answer ✔✔Which coordinate system do you use for measuring distance?
nautical mile - correct answer ✔✔1 knot = 1 _________ ________
Mercator charts - correct answer ✔✔Charts that are "squished" to get rid of the earth curvature when
using navigation
NOS - correct answer ✔✔Who publishes Mercator charts?
,mean lower low - correct answer ✔✔The soundings on a chart are in feet at _______ _________
________ water
variation - correct answer ✔✔term used for the distance between true north and magnetic north
variation and deviation - correct answer ✔✔What are the 2 components of compass error?
deviation - correct answer ✔✔term used for compass error caused by magnetic forces within the vessel,
such as electronic equipment and metal objects (depends on heading, not the geographic location of the
vessel)
capital - correct answer ✔✔What lettering shows conspicuous information on a chart, not affected by
tide and current?
italics - correct answer ✔✔What lettering shows information that is affects by tide and current?
NOAA - correct answer ✔✔Who does hydrographic surveys of the substrates in the ocean?
USCG - correct answer ✔✔Who publishes the Local Notice to Mariners?
- used to show changes and corrections to charts
- after date shown at bottom, the map needs correcting
true - correct answer ✔✔When charting, the SET is always in "true" or "magnetic"?
- everything else uses magnetic
set and drift - correct answer ✔✔These are the rules in determining ___________ in charting?
1. establish set point with time
2. track
3. DR
, 4. position at DR
5. draw set line
half, half, opposite - correct answer ✔✔Rules about charting set and drift:
- if 30 mins, you _______ the starting knots, but double the end drift
- if 2 hours, you ______ the end drift
- if given set and drift and you have to find CTS, look at where the degrees are given in true, then aim the
____________ of that (in the same knots) to get set course because of current
USCG, NOS, NGA, USCG, FCC, COLREGS - correct answer ✔✔Who publishes the Lights List?
Who publishes the US Coast Pilot, Tide and Current Tables, and Weather?
Who publishes the International Code of Signals and List of Lights? (foreign lights)
Who publishes the US Aids to Navigation System (IALA)?
Who allocates radio frequencies and channels?
Who publishes the Rules of the Road?
never - correct answer ✔✔Mariners should _______ rely on buoys alone to determine position.
restricted visibility - correct answer ✔✔Radar MUST be used in __________ ____________.
vessel - correct answer ✔✔You find depth of water from depth finder by adding the depth it states +
draft of _______ (depth of keel)
RACON - correct answer ✔✔term for radio transponder beacon