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 information on ocean voyage planning with routeing details for powered and sailing vessels is likely found in（）.
The light vessel is reported（）.
To predict the actual depth of water using the Tide Tables，the number obtained from the Tide Tables is（）.
After launching，an inflatable raft should be kept dry inside by（）.
Light Lists for coastal waters are（）.
After being launched from a vessel，totally enclosed survival craft which have been afloat over a long period require（）.
An inflatable liferaft is hand-launched by（）.
An inflatable liferaft should be manually released from its cradle by（）.
On an Atlantic Ocean voyage from New York to Durban，South Africa，you should expect the Agulhas Current to present a strong（）.
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（）.