shown below the sternlight
white in color
displayed at the masthead
a yellow light having the same characteristics as the stern light
第1题：
A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when ______.
A.directly astern and pushing the tow
B.towing on a hawser
C.towing alongside and parallel to the vessel it is towing
D.towing on the hip
第2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3题：
A towing light is ______.
A.shown at the bow
B.white in color
C.shown in addition to the stern light
D.an all-round light
第4题：
flashing amber light
yellow light with the same characteristics as the sternlight
all-round yellow light
yellow light with the same characteristics as the masthead light
第5题：
shown below the stern light
white in color
displayed at the masthead
a yellow light having the same characteristics as the stern light
第6题：
A vessel towing a barge astern would show，at the stern ______.
A.only a stern light
B.a towing light above the stern light
C.two towing lights in a vertical line
D.two white lights in a vertical line
第7题：
increase control of the tow
prevent the towing vessel from going in irons
make the towing vessel less maneuverable
reduce shock stress on the towing hawser
第8题：
A towing light is ______.
A.shown below the stern light
B.white in color
C.displayed at the masthead
D.a yellow light having the same characteristics as the stern light
第9题：
white light
red light
yellow light
blue light
第10题：
special flashing light
anchor light
sternlight
masthead light