A.increase the towing hawser's catenary and provide more spring
B.reduce catenary，allow operation in shallower water，and to release one barge without breaking up the entire tow
C.enable one tug and its crew without any outside assistance to make up or break down the tow
D.provide rapid delivery of logs from the northwestern United States to Hawaiian sawmills
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A.only when the load is taken off the cable
B.only when there is a load on the cable
C.only when activated by the controls at the lowering station
D.at any time
A.Cirrus
B.Cumulus
C.Stratus
D.Nimbus
A.a mattress
B.spilled liquids such as oil or paint
C.high voltage electrical gear
D.a trash can
A.satellite communications
B.navigational information
C.weather information
D.position reporting service
A.At least two lifeboats
B.A radiotelephone
C.A radio direction finder
D.None of the above
最新試題
In respect of carrier’s liabilities，responsibilities，rights and immunities the（）contained in the International Convention for the Unification of Certain Rules Relating to Bills of Lading，signed at Brussels on August 25，1924，shall be applied.
In handling break bulk hazardous materials，it is forbidden to use（）.
An example of an anchor which has a stock is a（）.
An aneroid barometer on a boat should always be（）.
All portable fire extinguishers must be capable of being（）.
An “atoll cloud” forming over an island due to heating of the land during the daytime would be which type? （）
An entry of water，gas，oil，or other formation fluid into the wellbore is called a（）.
An engine compartment gasoline fire requires which type of extinguisher?（）
All of the following vessels are “restricted in their ability to maneuver” EXCEPT a vessel （）.
All of the following information concerning lighted aids to navigation may be read directly from the Light List EXCEPT the（）.