The Moon is nearest to the Earth at __________.?
A) perigee B) the vernal equinox C) the new Moon D) the full Moon E)NULL
Arşivler Sorular
White lights may be found on __________.?
A) special purpose buoys B) preferred channel buoys C) information and regulatory buoys D) numbered buoys E)NULL
You are entering an east coast port and see a buoy with a yellow triangle painted on it. This indicates __________.?
A) you are in the vicinity of the ICW B) the buoy is a special mark C) the buoy is off station D) the buoy designates a sharp turn in the channel E)NULL
You wish to measure the distance on a Mercator chart between a point in latitude 43°30’N and a point in latitude 40°30’N. To measure 30 miles at a time, you should set the points of the dividers at __________.?
A) 41°30′ and 42°00′ B) 41°45′ and 42°15′ C) 42°00′ and 42°30′ D) 42°15′ and 42°45′ E)NULL
What publication contains descriptions of the coast line, buoyage systems, weather conditions, port facilities, and navigation instructions for the United States and its possessions?
A) Coast Pilots B) Sailing Directions C) Port Index D) Light List E)NULL
You are enroute to assist vessel A. Vessel A is underway at 5.5 knots on course 033°T, and bears 248°T at 64 miles from you. What is the course to steer at 13 knots to intercept vessel A?
A) 262° B) 269° C) 276° D) 281° E)NULL
The difference in degrees between true north and magnetic north is called __________.?
A) variation B) deviation C) drift D) compass error E)NULL
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