You take a bearing of 176° of a lighthouse. Which bearing of another object would give the best fix?
A) 079° B) 151° C) 176° D) 292° E)NULL
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Which aid is NOT marked on a chart with a magenta circle?
A) Aero light B) Radar station C) Radar transponder beacon D) Radiobeacon E)NULL
What is characteristic of an isophase light?
A) 4 sec. flash, 2 sec. eclipse, 3 sec. flash, 2 sec. eclipse B) 2 sec. flash, 5 sec. eclipse C) 1 sec. flash, 1 sec. eclipse D) 6 sec. flash, 3 sec. eclipse E)NULL
At morning stars, the last stars that should be observed are those with an azimuth in which quadrant?
A) Eastern B) Southern C) Western D) Northern E)NULL
The navigator aboard a ship at approximately 165°E longitude observes the Sun at ZT 14-25-04 on 21 September. What is the GMT and Greenwich date of the observation?
A) 03-25-04, 21 September B) 02-25-04, 21 September C) 01-25-04, 21 September D) 01-25-04, 20 September E)NULL
What is a characteristic of cardinal marks?
A) Light rhythms indicating directional orientation B) Vertical stripes C) Square or triangular topmarks D) Number-letter combinations for identification E)NULL
Which is a characteristic of the weather preceding an approaching warm front?
A) Gusty winds B) Steadily falling barometric pressure C) Decreasing relative humidity D) Clearing skies E)NULL
You are in charge of a power-driven vessel crossing a river on the Western Rivers. You must keep out of the way of __________.?
A) a sail vessel descending the river B) a power-driven vessel ascending the river C) a vessel restricted in its ability to maneuver crossing the river D) All of the above E)NULL
On 13 November 1981 you observe a back sight of the upper limb of the Sun as seen through the sextant’s scope. The sextant altitude (hs) is 109°23.6′. The height of eye is 66 feet, and the index error is 2.0′ off the arc. What is the observed altitude (Ho)?
A) 71°01.2′ B) 70°57.2′ C) 70°45.4 D) 70°26.4′ E)NULL
A steep barometric gradient indicates __________.?
A) calms B) light winds C) strong winds D) precipitation E)NULL