at times
at any time
at no time
at moment
第1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2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3题：
______ of the following statements is INCORRECT regarding a fire and boat drill on board your cargo vessel.
A.At least one fire and boat drill shall be held within 24 hours of leaving a port where more than 25 percent of the crew has been replaced
B.The Master is responsible in seeing that each lifeboat is lowered to the water at least once in each 6 months．
C.Lifeboat equipment shall be examined at least once each month to insure that it is complete
D.An entry shall be made in the vessel's Official Logbook relative to each fire and boat drill
第4题：
on each watch，immediately before being relieved
before embarking on a voyage of more than 24 hours
daily，at 1200 local zone time
weekly，before 0000 Sunday
第5题：
By day，she shall carry a black cylinder shape
By day，she shall carry two black balls in a vertical line
By night，she would show the same lights as a vessel not under command
By day，she would show the same shapes as a vessel restricted in her ability to maneuver
第6题：
A vessel is described as a two compartment vessel when it ______.
A.has no more than two compartments
B.has two compartments in addition to the engine room
C.will sink if any two compartments are flooded
D.will float if any two adjacent compartments are flooded
第7题：
a vessel towing by pushing ahead
a power-driven vessel，not towing
a barge being pushed ahead
either answer A or answer B
第8题：
A vessel towing astern in an operation which severely restricts the towing vessel and her tow in their ability to change course shall，when making way，exhibit ______.
A.the masthead lights for a towing vessel
B.the lights for a vessel restricted in its ability to maneuver
C.sidelights，stern light and towing light
D.All of the above
第9题：
When the towing vessel enters the fog
When the drilling rig enters the fog
When the towing vessel can no longer be seen from the rig
Immediately
第10题：
the masthead lights for a towing vessel
the lights for a vessel restricted in its ability to maneuver
sidelights，stern light and towing light
All of the above