A.troubleB.errorC.wrongD.mistakeMy gyro-compass（）is two……

单项选择题Your ship is steaming at night with the gyropilot engaged. You notice that the vessel’s course is slowly changing to the right. Which action should you take FIRST?（）.

A.Notify the engine room of the steering malfunction
B.Change to hand steering
C.Call the Master
D.Send the Quartermaster to the emergency steering station

单项选择题The principal purpose of adjustment of the magnetic compass is to eliminate（）as far as possible.

A.variation
B.compass error
C.deviation
D.earth's magnetic force

单项选择题（）the repeater compass with the master compass，please.

A.Similize
B.Clock
C.Synchronize
D.Position

单项选择题My gyro-compass error is（）.

A.east two degrees
B.two degrees east
C.two east degrees
D.two-degrees east

单项选择题There is a possibility that small vessel，ice and other floating objects may not be（）by radar at an adequate range.

A.reflect
B.shown
C.detected
D.defected