ASA 105
ASA 105 COSTAL NAVIGATION EXAM
QUESTIONS WITH CORRECT VERIFIED
SOLUTIONS 100% GUARANTEED PASS
Three primary nautical measurements. - ANS ✓Direction, speed, distance
Must be derived, calculated, or read. - ANS ✓Speed
Measured in nautical miles. - ANS ✓Distance
Measured in relation to north. - ANS ✓Direction
Inner degree circle on the compass rose. - ANS ✓Magnetic
Outer degree circle on the compass rose. - ANS ✓Geographic (True)
Difference between geographic and magnetic north. - ANS ✓Variation
Basic rule for piloting your boat into any US harbor. - ANS ✓Red, right, return
When traveling here "returning" is considered traveling south and west along the Atlantic and
gulf coasts. - ANS ✓Intercostal waterway (ICW)
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Three elements used in the buoy or marker system. - ANS ✓Color, shape, number
Color of markers that are shaped like cones or triangles with even numbers. - ANS ✓Red
Color of markers that are cylindrical or square with odd numbers. - ANS ✓Green
Buoys or markers that may be cylindrical, square, or cone shaped with letters. The preferred
color is on top. - ANS ✓Preferred Channel (or Obstruction)
Red/White vertically stripped buoys/markers that show fairways, mid channels, and approach
points. - ANS ✓Safe Water (mid channel)
Safe water bouts, when lighted, shoe a short/long flashing white light that is morse code for
this letter. - ANS ✓A
Buoys that have many uses (ex: Dredging, fish traps, military, etc...) - ANS ✓Special
Purpose
What color(s) is an isolated danger buoy? - ANS ✓Black/Red
Shape on ICW sign to be on your left (Port) when "returning". - ANS ✓Square
Shape on ICW sign to be on right (starboard) when "returning". - ANS ✓Triangle
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Two beacons on shore or shallow water that line up at the center of a channel, back light is
higher than the front. - ANS ✓Transit Lights (Range Lights)
Two features that identify buoys/beacons at night. - ANS ✓Color, timing
Three colors of lights commonly used on buoys. - ANS ✓Red, green, white
Light pattern characterized by repeatedly turning on and off in approx 5 second intervals. -
ANS ✓Flashing
Light pattern characterized by turning on for 2-3 seconds and then off for 1. - ANS
✓Occulting
Light pattern characterized by rapid turning on and off. - ANS ✓Quick Flashing
Light pattern that flashed twice, pauses 5 seconds, then flashes once. - ANS ✓Composite
group (junction)
Light pattern that flashes one short and one long flash. - ANS ✓Short Long
4 common audible navigation aids. - ANS ✓Bell, gong, whistle, horn
Audible device activated by waves, always used on the right side of a channel when
returning. "Red, right, return, ring" - ANS ✓Bell
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