The phase correction should be applied to sights of Venus and Mars __________.?
A) during day time observations only B) during twilight observations only C) at all times D) when observed at altitudes of less than 25° E)NULL
Arşivler Sorular
The correction tables in the Nautical Almanac for use with Moon sights do NOT include the effects of __________.?
A) instrument error B) augmentation C) semidiameter D) parallax E)NULL
A line of position formed by sighting two charted objects in line is called a(n) __________.?
A) relative bearing B) range line C) track line D) estimated position E)NULL
The Captain of the Port has closed to navigation, and buoyed, a section of a harbor. These buoys would be painted __________.?
A) red or green to conform with the other lateral aids B) red and green horizontally-striped C) solid yellow D) white with orange marks E)NULL
A line on the Earth parallel to the equator is a __________.?
A) gnomonic curve B) small circle C) meridian D) great circle E)NULL
Which buoy may be even numbered?
A) Mid-channel buoy B) Unlighted nun buoy C) Lighted green buoy D) All of the above E)NULL
Your vessel is on course 135°T, speed 18 knots. From the appearance of the sea you estimate the speed of the true wind as 24.5 knots. The apparent wind is 40° on the starboard bow. Determine the speed of the apparent wind.?
A) 24.2 knots B) 28.4 knots C) 32.2 knots D) 36.0 knots E)NULL
The navigable semicircle of a hurricane in the Northern Hemisphere is that area of the storm measured __________.?
A) from true north clockwise to 180°T B) from true north counterclockwise to 180°T C) from the bow counterclockwise to 180° relative D) from the direction of the storm’s movement counterclockwise 180° E)NULL
A buoy with a composite group-flashing light indicates a(n) __________.?
A) bifurcation B) fish net area C) anchorage area D) dredging area E)NULL
Mariners are FIRST warned of serious defects or important changes to aids to navigation by means of __________.?
A) marine broadcast Notice to Mariners B) Weekly Notices to Mariners C) corrected editions of charts D) Light Lists E)NULL