Which symbol represents a 10-fathom curve?
A) ____ ____ ____ B) … ____ … ____ C) ____ . _____ . ____ . ____ D) …….. E)NULL
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When using a mechanical (windup type) marine chronometer, how often should it be reset?
A) Only when it is overhauled B) Whenever the chronometer error exceeds approximately four minutes C) At the start of each voyage D) If the chronometer rate changes from gaining to losing or vice versa E)NULL
You are steaming eastward in the North Atlantic in an extratropical cyclonic storm and the wind is dead ahead. According to the law of Buys Ballot, the center of the low pressure lies __________.?
A) ahead of you B) astern of you C) to the north D) to the south E)NULL
At what time after 1400 EST (ZD +5), on 4 January 1983, will the height of the tide at Port Wentworth, GA, be 3.0 feet?
A) 1612 B) 1630 C) 1653 D) 1718 E)NULL
A vessel heading NW is on a course of __________.?
A) 274.5° B) 292.5° C) 315.0° D) 337.5° E)NULL
Some locations maintain a zone time of -13. What are the Greenwich time and date if the zone time and date are 0152, 10 January?
A) 1252, 9 January B) 1452, 9 January C) 0052, 11 January D) 1452, 11 January E)NULL
You are on a vessel at 0400 ZT on 3 July, and the ZD for your position is -8. What is the GMT?
A) 1200, 3 July B) 2000, 3 July C) 1200, 2 July D) 2000, 2 July E)NULL
When making landfall at night, the light from a powerful lighthouse may sometimes be seen before the lantern breaks the horizon. This light is called the __________.?
A) diffusion B) backscatter C) loom D) elevation E)NULL
A chart position enclosed by a semi-circle is a(n) __________.?
A) fix B) estimated position C) dead reckoning position D) running fix E)NULL
Your chart indicates that there is an isolated rock and names the rock using vertical letters. This indicates the __________.?
A) rock is visible at low water springs only B) rock is a hazard to deep draft vessels only C) rock is dry at high water D) exact position of the rock is doubtful E)NULL