A.passing a tow bridle to the tugB.passing a messenger ……

单项选择题In towing it is desirable for the tug and the vessel to ride wave crests simultaneously because（）.

A.shock loading on the tow line is reduce
B.towing speed is improved
C.the vessel is more visible from the tug
D.the catenary of the tow line is reduced

单项选择题In order to back a right-handed，single-screw vessel in a straight line，you will probably need to use（）.

A.very little rudder
B.some left rudder
C.some right rudder
D.full left rudder

单项选择题In order for a vessel to be engaged in fishing she must be（）.

A.underway
B.using gear which extends more than 50 meters outboard
C.using a seine of some type
D.using gear which restricts her maneuverability

单项选择题In ballasting to survival draft，while in transit，due to extreme wind and wave loads，thrusters or propulsion，if available，should be used to（）.

A.reduce windward mooring tensions
B.maintain vessel heading
C.maximize accelerations
D.increase speed of advance

单项选择题In a following sea，a wave has overtaken your vessel and thrown the stern to starboard. To continue along your original course，you should（）.

A.use more right rudder
B.use more left rudder
C.increase speed
D.decrease speed