A radar display which is oriented, so that north is always at the top of the screen, is called a(n) __________.?
A) relative display B) composite display C) stabilized display D) unstabilized display E)NULL
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A current perpendicular to a vessel’s track has the greatest effect on the vessel’s course made good __________.?
A) at high vessel speeds B) at low vessel speeds C) in shallow water D) in deep water E)NULL
A vessel is heading magnetic northwest and its magnetic compass indicates a heading of 312°. What action should be taken to remove this error during compass adjustment?
A) If the quadrantal spheres are all of the way out replace them with larger spheres. B) If the quadrantal spheres are all of the way in replace them with larger spheres. C) If the quadrantal spheres are all of…
Current refers to the __________.?
A) vertical movement of the water B) horizontal movement of the water C) density changes in the water D) None of the above E)NULL
A flashing green light displayed at a single lock means that the lock is __________.?
A) ready for entrance B) ready for entrance, but gates cannot be closed completely C) being made ready for entrance D) not ready for entrance E)NULL
You are underway at 5 knots and see on your radar a contact 10 miles directly astern of you. 12 minutes later, the contact is 8 miles directly astern of you. What is the estimated speed of the contact?
A) Dead in the water B) 1 knot C) 10 knots D) 15 knots E)NULL
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?
A) The set is 090°, drift 0.5 knot. B) The set is 090°, drift 1.0 knot. C) The set is 270°, drift 0.5 knot. D) The set is 270°, drift 1.0 knot. E)NULL
In reading a weather map, closely spaced pressure gradient lines would indicate __________.?
A) high winds B) high overcast clouds C) calm or light winds D) fog or steady rain E)NULL
The datum used for soundings on charts of the Atlantic Coast of the United States is mean __________.?
A) low water B) lower low water C) high water springs D) high water E)NULL
A vessel is heading magnetic north and its magnetic compass indicates a heading of 356°. What action should be taken to remove this error during compass adjustment?
A) If the blue ends of the magnets are to port, and the athwartships tray is at the top, you should remove some of the magnets. B) If the blue ends of the magnets are to starboard, and the athwartships…