Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR

USCG General Navigation (Set 49)

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Question 1 of 30

When making landfall at night, you can determine if a light is a major light or an offshore buoy by _________.

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30 MCQs

#1 When making landfall at night, you can determine if a light is a major light or an offshore buoy by _________. #2 The first point of Aries is the point where the Sun is at __________. #3 Other than the Sun and Moon, the brightest object in the sky is __________. #4 What is the relative bearing of an object broad on the starboard quarter? #5 At 0000 you fix your position and change course to 270°T. At 0030 you again fix your position, and it is 0.5 mile east of your DR. Which statement is TRUE? #6 Your longitude is 179°59'W. The LMT at this longitude is 23h 56m on the 4th day of the month. Six minutes later, your position is 179°59'E longitude. Your LMT and date are __________. #7 If the GMT is 1500, the time at 75°E longitude is __________. #8 What celestial body may sometimes be observed in daylight? #9 The largest of the navigational planets is __________. #10 The parallel of latitude at 66°33'N is the __________. #11 The parallel of latitude at 23°27'S is the __________. #12 The GP of a body for a high altitude sight is determined from the Greenwich hour angle and the __________. #13 The precession of the equinoxes occurs in a(n) __________. #14 The daily path of a celestial body that is parallel to the celestial equator is the __________. #15 At meridian transit, the diagram used by a navigator to illustrate the angles involved is based on the __________. #16 At 0000 you fix your position and plot a new DR track line. At 0200 you again fix your position and it is 0.5 mile west of your DR. Which statement is TRUE? #17 In the horizon system of coordinates what is the equivalent to the meridians on the Earth? #18 When plotting a circle of equal altitude for a high altitude sight, the radius of the circle is determined by the formula __________. #19 Why are low altitude sun sights not generally used? #20 A line of position is __________. #21 Which is TRUE on the Western Rivers when a vessel downbound with a following current is meeting an upbound vessel? #22 What is the longitude of the geographical position of a body whose Greenwich hour angle is 210°30'? #23 The precession of the equinoxes of the Earth is __________. #24 The principal vertical circle is that great circle on the celestial sphere that passes through the __________. #25 The spinning of a celestial body about its axis is known as __________. #26 The owner or Master of a towing vessel shall ensure that each person that directs and controls the movement of the vessel can accomplish all of the following EXCEPT _________. #27 The direction in which a vessel is steered is the course. The path actually followed is the __________. #28 The error in a sextant altitude caused by refraction is greatest when the celestial body is __________. #29 What is the equivalent of 10°48' in time units? #30 "Rotation" is the __________.

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