你可能感興趣的試題

Which compensates for errors introduced when the vessel heels over（）.

A.The soft iron spheres on the arms of the binnacle
B.Magnets placed in trays inside the binnacle
C.A single vertical magnet beneath the compass
D.The Flinders bar

單項(xiàng)選擇題

When relieving the helm，the new helmsman should know the（）.

A.Course per magnetic steering compass
B.Gyro error
C.Variation
D.Maximum rudder angle previously used