A.must utilize magnatic courses
B.must take set and drift into account
C.should be replotted hourly
D.should be started each time the vessels position is fixed
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A.bitt
B.bollard
C.capstan
D.cleat
A.screw pump
B.centrifugal pump
C.eductor
D.gear pump
A.alternate expansion and contraction as water in a liquid state becomes a vapor
B.absorption of smoke and gases as water is converted from a liquid to a vapor
C.rapid contraction as water is converted from a liquid to a vapor
D.rapid expansion as water absorbs heat and changes to steam
A.detachable link
B.stud link
C.Kenter link
D.connection link
A.flame stopper
B.flame screen
C.flame filter
D.flame restrictor
最新試題
When steering by autopilot,how often should the steering be checked?（）
Bales close to the deckhead should be covered to prevent（）.
Manoeuvring information can not be obtained from（）.
The helm command PORT TWENTY means（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
A tide is called diurnal when（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Which of the following is not a form of precipitation?（）
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
The mean draft of a ship is the draft（）.