单项选择题

The helm command PORT TWENTY means（）.

A.change course twenty degrees to the left
B.put the rudder left twenty degrees
C.put the rudder hard left for the first twenty degrees of swing
D.put the rudder left twenty degrees and then ease back as the vessel starts swinging

点击查看答案&解析

上一题目录下一题

相关考题

单项选择题

The circulation around a low pressure center in the Northern Hemisphere is（）.

A.counterclockwise
B.variable
C.clockwise
D.anticyclonic

单项选择题

How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）

A.within two hours
B.within three hours
C.within four hours
D.within five hours

单项选择题

It is dangerous for vessels without the operational radar（）the estuary.

A.to get
B.to approach
C.to proceed
D.to close