The following questions are based on Chart 12221TR, Chesapeake Bay Entrance, and the supporting publications. The draft of your vessel is 9.0 feet (2.75 meters) Gyro error is 2°W Variation is 10°W "Per standard magnetic compass" is abbreviated "psc" “Per gyrocompass” is abbreviated “pgc” DEVIATION TABLE Magnetic Deviation Heading 1.5°E 000° 2.0°E 030° 1.0°E 060° 0° 090° 1.0°W 120° 1.5°W 150° 2.5°W 180° 1.5°W 210° 1.0°W 240° 0.5°W 270° 0° 300° 0.5°E 330°
As you pass between trestle "B" and trestle "C" of the Chesapeake Bay Bridge - Tunnel, you sight along the trestle "C" when it is in line. The trestle bears 057° per standard magnetic compass while the vessel is heading 320°T. Which of the following can be determined from this information?
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