单项选择题
A.indicated horsepower B.brake horsepower C.dynamic horsepower D.net horsepower
A towing vessel should be on the crest of a wave at the...
单项选择题A towing vessel should be on the crest of a wave at the same time as its tow and in the trough at the same time. The term used to describe this is（）.
A.tow strain B.catenary length C.being in step D.Williamson's Tow
A towboat has the same draft as the barges it is pushin...
单项选择题A towboat has the same draft as the barges it is pushing ahead. If the distance from the stern of the towboat to the head of the tow is 260m，where is the approximate location of the pivot point of the unit?（）
A.At the head of the tow B.75m from the head of the tow C.120m from the head of the tow D.180m from the head of the tow
A tow that veers to the side on the end of the towline ...
单项选择题A tow that veers to the side on the end of the towline is said to（）.
A.yaw B.surge C.sway D.swing
