The difference in degrees between true north and magnetic north is called __________.?
A) variation B) deviation C) drift D) compass error E)NULL
Soru Kategorisi Güverte
On 13 November 1981 you observe a back sight of the lower limb of the Moon as seen through the sextant’s scope. The sextant altitude (hs) is 110°31.2′. The height of eye is 46 feet and the index error is 2.0′ on the arc. The horizontal parallax is 61.3′. What is the observed altitude (Ho)?
A) 70°11.8′ B) 69°41.8′ C) 69°25.6′ D) 69°18.4′ E)NULL
The apparent wind is zero when the true wind is __________.?
A) zero B) from ahead and equal to the ship’s speed C) from astern and equal to the ship’s speed D) from astern and is twice the ship’s speed E)NULL
While navigating in fog off a coastline of steep cliffs, you hear the echo of the ships fog horn 5.5 seconds after the signal was sounded. What is the distance to the shore?
A) 3825 ft (1166 meters) B) 3450 ft (1052 meters) C) 3072 ft (936 meters) D) 2475 ft (754 meters) E)NULL
A weather forecast states that the wind will commence veering. In the Northern Hemisphere this indicates that the wind will __________.?
A) shift in a clockwise manner B) shift in a counterclockwise manner C) continue blowing from the same direction D) increase in velocity E)NULL
The equation of time is 8m 40s. The apparent Sun is ahead of the mean Sun. If you are on the central meridian of your time zone, the apparent Sun will cross your meridian at __________.?
A) 11-51-20 ZT B) 12-00-00 ZT C) 12-04-20 ZT D) 12-08-40 ZT E)NULL
You are planning to enter an unfamiliar U.S. port. Which publication provides information about channel depths, dangers, obstructions, anchorages, and marine facilities available in that port?
A) American Practical Navigator B) Notice to Mariners C) Coast Pilot D) Sailing Directions E)NULL
The navigable semicircle of a tropical storm in the South Indian Ocean is located on which side of the storm’s track?
A) Rear B) Front C) Left D) Right E)NULL
While steaming north of the Irish coast, you sight a buoy which shows the light rhythm shown in illustration D028NG. How would you pass this buoy?
A) North of the buoy B) East of the buoy C) South of the buoy D) West of the buoy E)NULL
What should you apply to a fathometer reading to determine the depth of water?
A) Subtract the draft of the vessel. B) Add the draft of the vessel. C) Subtract the sea water correction . D) Add the sea water correction. E)NULL