a tugboat
a sailing vessel
a power-driven vessel
a vessel propelled by machinery and under sail
第1题：
A vessel which is being assisted by an icebreaker would display a flag hoist consisting of the code numeral "4" when the vessel ______.
A.speed begins to drop
B.stops
C.receives ice damage
D.becomes icebound
第2题：
When one upbound vessel is overtaking another vessel and both are pushing a tow ahead，what reaction may you expect ________．
A.Both towheads will tend to drift apart，and the overtaking vessel will be slowed down
B.Both towheads will tend to drift together，and the overtaking vessel will be slowed down
C.Both towheads will tend to drift apart，and the overtaken vessel will be slowed down
D.Both towheads will tend to drift together，and the overtaken vessel will be slowed down
第3题：
A pilot vessel on pilotage duty at night will show sidelights and a sternlight ______.
A.when at anchor
B.only when making way
C.at any time when underway
D.only when the identifying lights are not being shown
第4题：
If practical, when shall a manned vessel being towed sound her fog signal?______.
A.Immediately before the towing vessel sounds hers
B.Immediately after the towing vessel sounds hers.
C.As close to the mid-cycle of the towing vessel’s signals as possible
D.At any time as long as the interval is correct
第5题：
For GMDSS，when may a compulsory vessel not be allowed to leave port ________．
A.When the vessel is in an overloaded condition
B.When the vessel has arranged for both duplication of equipment AND shore-based maintenance
C.When the vessel has replaced a required piece of GMDSS-related equipment but its performance has not been verified or logged
D.When the vessel is carrying only two licensed GMDSS Radio Operators and is capable of performing all required functions
第6题：
There is a ______ when one or more vessels are towing or pushing another vessel or vessels，provided that they are all involved in commercial activities and not in a salvage operation．
A.private safety
B.private maritime adventure
C.common safety
D.common maritime adventure
第7题：
A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of ______．
A.A vessel towing by pushing ahead
B.A power-driven vessel，not towing
C.A barge being pushed ahead
D.Either answer A or answer B
第8题：
Which vessel may show three lights in a vertical line，the top and bottom being red and the middle being white?
A.A vessel engaged in diving operations
B.A pilot vessel
C.A vessel trawling
D.All of the above
第9题：
How would you pass a red buoy in the maritime buoyage system “A”?______.
A.keep the buoy on the vessel’s starboard side when approaching a port and on the vessel’s port side when leaving
B.keep the buoy on the vessel’s port side when approaching a port and on the vessel’s starboard side when leaving
C.keep the buoy on the vessel’s starboard side when approaching and leaving
D.keep the buoy on the vessel’s port side when approaching and leaving
第10题：
If you saw flames aboard a vessel but could see the vessel was not on fire, you would known that the ______.
A.crew was trying to get warm
B.vessel required immediate assistance
C.vessel was attempting to attract the attention of a pilot boat
D.vessel was being illuminated for identification by aircraft