ASA 105 Coastal Navigation Exam V2 |
Questions and Correct Answers Rated A+ |
100% Correct | 2025/2026 Guide
Dipping the light fix - Correct Answer - A fix using two intervening
distances: 1. From your boat to the horizon 2. From the light to its
horizon.
Danger bearing - Correct Answer - Bearing that is plotted in advance to
avoid potential trouble
Turn bearing - Correct Answer - Bearing that is plotted in advance to
show you when to change your course.
Not less than (NLT) - Correct Answer - Sometimes abbreviated on a
chart to show a minimum degree bearing to avoid dangers.
Relative bearings - Correct Answer - Bearing taken relative to the boats
position. 000 degrees at the bow, 180 degrees at the stern.
Radar - Correct Answer - The only instrument that regularly displays
relative bearings.
,Doubling the bow angle - Correct Answer - Rule stating that if any
relative angle off the bow to a landmark doubles, then the distance run
will equal the distance off the landmark at the point where the doubled
bearing was measured.
Track - Correct Answer - Direction of travel without correcting for current.
Heading - Correct Answer - Direction of travel after correcting path for
current.
Wind - Correct Answer - Defined based on the direction it comes from.
(The direction its "out of")
Set - Correct Answer - The direction toward which a current flows.
Expressed in degrees.
Boat speed - Correct Answer - Indicated by knot meter, ignores current.
True speed - Correct Answer - Actual speed the boat travels over the
bottom (or on the chart). Includes the effect of the current.
Speed made good, speed over ground (SMG, SOG) - Correct Answer -
Two other terms for true speed.
, Current triangles - Correct Answer - Term for lines formed on chart when
setting a heading to compensate for current.
Set, drift - Correct Answer - Factors in a current triangle.
Drift - Correct Answer - Strength of current measured in knots.
True speed - Correct Answer - In the current triangle this is the speed
along the dead reckoning course before correcting for current.
DR boat speed - Correct Answer - In the current triangle this is the speed
on the heading line after correcting for current.
Course made good (CMG) - Correct Answer - Another term for track.
5 - Correct Answer - Number of degrees to steer into the wind for leeway
correction.
Tides - Correct Answer - The rise and fall of coastal water. Strictly
vertical movement.
Tidal current - Correct Answer - Horizontal flow of coastal waters.
Questions and Correct Answers Rated A+ |
100% Correct | 2025/2026 Guide
Dipping the light fix - Correct Answer - A fix using two intervening
distances: 1. From your boat to the horizon 2. From the light to its
horizon.
Danger bearing - Correct Answer - Bearing that is plotted in advance to
avoid potential trouble
Turn bearing - Correct Answer - Bearing that is plotted in advance to
show you when to change your course.
Not less than (NLT) - Correct Answer - Sometimes abbreviated on a
chart to show a minimum degree bearing to avoid dangers.
Relative bearings - Correct Answer - Bearing taken relative to the boats
position. 000 degrees at the bow, 180 degrees at the stern.
Radar - Correct Answer - The only instrument that regularly displays
relative bearings.
,Doubling the bow angle - Correct Answer - Rule stating that if any
relative angle off the bow to a landmark doubles, then the distance run
will equal the distance off the landmark at the point where the doubled
bearing was measured.
Track - Correct Answer - Direction of travel without correcting for current.
Heading - Correct Answer - Direction of travel after correcting path for
current.
Wind - Correct Answer - Defined based on the direction it comes from.
(The direction its "out of")
Set - Correct Answer - The direction toward which a current flows.
Expressed in degrees.
Boat speed - Correct Answer - Indicated by knot meter, ignores current.
True speed - Correct Answer - Actual speed the boat travels over the
bottom (or on the chart). Includes the effect of the current.
Speed made good, speed over ground (SMG, SOG) - Correct Answer -
Two other terms for true speed.
, Current triangles - Correct Answer - Term for lines formed on chart when
setting a heading to compensate for current.
Set, drift - Correct Answer - Factors in a current triangle.
Drift - Correct Answer - Strength of current measured in knots.
True speed - Correct Answer - In the current triangle this is the speed
along the dead reckoning course before correcting for current.
DR boat speed - Correct Answer - In the current triangle this is the speed
on the heading line after correcting for current.
Course made good (CMG) - Correct Answer - Another term for track.
5 - Correct Answer - Number of degrees to steer into the wind for leeway
correction.
Tides - Correct Answer - The rise and fall of coastal water. Strictly
vertical movement.
Tidal current - Correct Answer - Horizontal flow of coastal waters.
