In the celestial equator system of coordinates what is NOT equivalent to the longitude of the Earth system of coordinates?
A) SHA B) t C) LHA D) Zn E)NULL
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A coastal chart could have a scale of __________.?
A) not more than 1:25,000 B) 1:35,000 C) 1:100,000 D) 1:500,000 E)NULL
After Venus passes the point of greatest elongation east in its orbit, the first position in which the elongation will be zero is __________.?
A) superior conjunction B) inferior conjunction C) opposition D) None of the above; the elongation will never be zero E)NULL
Diagram Number D037NG represents a movable dam. If there is high water and the wickets are down so that there is an unobstructed navigable pass through the dam, what light(s) will be shown at D if the lock walls and piers are not awash?
A) No lights B) One red light C) Two red lights D) Three red lights E)NULL
A drawbridge may use visual signals to acknowledge a vessel’s request to open the draw. Which signal indicates that the draw will NOT be opened immediately?
A) A flashing amber light B) A fixed red light C) A white flag raised and lowered vertically D) A flashing white light E)NULL
A spar buoy is indicated by which letter in illustration D044NG?
A) A B) B C) C D) D E)NULL
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 B) only ground waves are received C) only skywaves are received D) both ground waves and skywaves are received E)NULL
Which government agency publishes the U.S. Coast Pilot?
A) Army Corps of Engineers B) National Imagery and Mapping Agency C) National Ocean Service D) U.S. Coast Guard E)NULL
On a nautical chart, the inner ring of a compass rose indicates __________.?
A) true directions B) compass error C) deviation D) magnetic directions E)NULL
The zenith is the point on the celestial sphere that is __________.?
A) 90° away from the poles B) directly over the observer C) on the eastern horizon D) over Greenwich E)NULL