The permanent magnetism of a vessel may change in strength due to __________.?
A) the nature of the cargo being carried B) changes in heading C) major structural repair D) All of the above E)NULL
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A phase correction may be applicable to correct the sextant altitude correction of __________.?
A) any star B) the Sun C) third magnitude stars only D) some planets E)NULL
The standard meridian for the time zone +1 is __________.?
A) 0° B) 7 1/2°W C) 15°W D) 7 1/2°E E)NULL
You are swinging ship to calibrate the RDF. The gyro error is 2°W. The RDF gyro bearing of a station is 308° at the same time the visual bearing is 307°. At the time of the bearing, you are heading 270°T. When you prepare the calibration chart, you would indicate the __________.?
A) correction is -1°When the relative bearing is 035° B) error is -1°When the heading is 270° C) correction is +1°When the relative bearing is 325° D) error is -1° on all headings E)NULL
A vessel is heading magnetic north and its magnetic compass indicates a heading of 356°. Which action should be taken to remove this error during compass adjustment?
A) If the red ends of the magnets are to port you should lower the athwartships tray. B) If the red ends of the magnets are aft you should raise the fore-and-aft tray. C) If the blue ends of the…
While navigating in fog off a coastline of steep cliffs, you hear the echo of the ship’s fog horn 3 seconds after the signal was sounded. What is the distance to the shore?
A) 1100 yards B) 872 yards C) 550 yards D) 792 yards E)NULL
A green buoy has a yellow triangle on it. This is a(n) __________.?
A) information or regulatory buoy that has lateral significance B) buoy that is off-station and is marked to warn mariners of its wrong position C) dual purpose marking used where the ICW and other waterways coincide D) buoy that was…
The revision date of a chart is printed on which area of the chart?
A) Top center B) Lower-left corner C) Part of the chart title D) Any clear area around the neat line E)NULL
Under the IALA Buoyage System, which topmark in illustration D023NG will be displayed on a safe water mark?
A) A B) B C) C D) D E)NULL
Fetch is the __________.?
A) distance a wave travels between formation and decay B) stretch of water over which a wave-forming wind blows C) time in seconds required for two crests to pass a given point D) measurement of a wave’s steepness E)NULL