单项选择题
A.advance B.head reach C.pitch D.transfer
The distance that a ship moves forward with each revolu...
单项选择题The distance that a ship moves forward with each revolutionof its propeller，if there is no slip，is called（）.
The distance between rivets in a row is known as the（）....
单项选择题The distance between rivets in a row is known as the（）.
A.arm B.pitch C.gage D.rivet distance
The BEST way to steer a twin-screw vessel if you lose y...
单项选择题The BEST way to steer a twin-screw vessel if you lose your rudder is by using（）.
A.one engine and a steering oar B.both engines at the same speed C.one engine at a time D.one engine running at reduced speed and controlling the vessel with the other
