250 A mid-channel buoy, if lighted, will show a __________.
A. fixed red light������������������…
Topic: Gn
249 The difference between the heights of low and high tide is the __________.
A. range������������������������…
246 The consistent winds blowing from the horse latitudes to the doldrums are called the __________.
A. prevailing westerlies�����������…
245 In a river subject to tidal currents, the best time to dock a ship without the assistance of tugs is __________.
A. at high water������������������…
243 The loran lines drawn on navigation charts represent __________.
A. ground waves����������������…
241 When the declination of the Moon is 0°12.5'S, you can expect some tidal currents in Gulf Coast ports to __________.
A. exceed the predicted velocities…
240 As you enter a channel from seaward in a U.S. port, the numbers on the starboard side buoys __________.
A. decrease and the buoys are black…
239 The shoreline on charts generally represents the mean __________.
A. high water line��������������…
238 The winds with the greatest effect on the set, drift, and depth of the equatorial currents are the __________.
A. doldrums������������������������…
237 If the LORAN-C ground wave does NOT extend out as far as the skywave skip distance, there will be a skip zone in which __________.
A. no LORAN-C signal is received…
235 When the equation of time is taken from the Nautical Almanac for use in celestial navigation, it is used to determine __________.
A. zone time������������������������…
233 The class of tide that prevails in the greatest number of important harbors on the Atlantic Coast is __________
A. interval�����������������������…
232 A sextant having an index error that is "off the arc" has a __________.
A. positive correction������������…