A.When the towing vessel enters the fog
B.When the drilling rig enters the fog
C.When the towing vessel can no longer be seen from the rig
D.Immediately
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A.under tow
B.fixed to the seabed
C.underway
D.All of the above
A.destination
B.answer
C.time
D.ending
A.The motion of the apparent sun is along the ecliptic
B.Measurement of time is along the celestial equator
C.The speed of the Earth's revolution is not constant
D.There are variations in the Earth's rotational speed
A.Mine Safety Appliance Association
B.American Chemical Society
C.Marine Chemists Association
D.National Fire Protection Association
A.can be absorbed through the skin
B.causes irreversible damage to eye tissue
C.is a very unstable product
D.All of the above
最新試題
The Coast Radio Stations are found in（）.
After jacking down your liftboat you have an unexpected list.You find that the only cause of this list must be a flooded leg.Your next course of action should be to（）.
The information on（）is not likely found in The Mariners Handbook.
Important changes to charts and lights（including temporary ones），radio signals and sailing directions are listed in（）.
Many of the lights on this coast are placed so high as to be frequently obscured by（）.
A person who sees someone fall overboard should（）.
An orange flag showing a black circle and square is a（）.
The light vessel is reported（）.
When an azimuth of the Sun has been taken and the deviation of the standard magnetic compass computed，the watch officer should record the results（）.
After being launched from a vessel，totally enclosed survival craft which have been afloat over a long period require（）.