My gyro-compass()is two degrees east.
A、A.trouble
B、B.error
C、C.wrong
D、D.mistake
A、A.trouble
B、B.error
C、C.wrong
D、D.mistake
A、Comparing the gyro azimuth of a celestial body with the computed azimuth of the body B、Comparing the gyro heading with the magnetic compass heading C、Determining from the chart the course made good between celestial fixes D、It cannot be determined accurately at sea due to drift of unknown currents
A、My vessel is leaking B、My vessel is producing fresh water C、My vessel is producing sea water D、Sea water is de-salted on board my vessel