ASA 105 Coastal Navigation Exam V2 (Latest Update 2025 / 2026) Questions and Verified Answers | Grade A | 100% Correct
Question:
What items do you need to perform coastal navigation in an effective manner in local area?
Answer:
-navigation charts and Light List -steering compass with deviation table -depth sounder or lead line -speed and distance instruments -protractor triangle, parallel rules and dividers -pencil, eraser, notebook, and simple calculator -VHF radio -hand bearing compass and pelorus watch or clock
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Question:
Beyond the local area, a prudent navigator should also consider the following:
Answer:
-GPS -Radar -AIS (Automatic Identification System) -Barometer -Weather Fax or Satellite Weather Receiver NAVTEX Receiver
Question:
What plotting tools are needed for navigation on a small boat in coastal waters?
Answer:
-parallel rules -protractor triangule -dividers -simple calculator -pencil -eraser
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Question:
What are the three primary plotting sheets?
Answer:
-position plotting sheets -universal plotting sheets -radar plotting sheets
Question:
What is variation ?
Answer:
The difference between True North and Magnetic North as measured on a particular date and location on earth. Changes can be from none to as much as 150°
Question:
What is deviation?
Answer:
The error between Magnetic North and Compass North.
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Question:
Compass inaccuracy result from two sources:
Answer:
- defects in the compass itself
- magnetic influences within the boat
Question:
Formula for calculating distance
Answer:
speed x time
Question:
What is the use of a NEVTEX receiver?
Answer:
provides text of weather forecasts, navigational hazards, emergencies, damage to navigational aids and other safety information
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