underway
using gear which extends more than 50 meters outboard
using a seine of some type
using gear which restricts her maneuverability
第1题：
On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a ______.
A.vessel being towed
B.fishing vessel engaged in trawling
C.vessel at anchor warning you of her location
D.power-driven pilot vessel on station underway
第2题：
A vessel is "engaged in fishing" when ______.
A.her gear extends more than 100 meters from the vessel
B.she is using any type of gear，other than lines
C.she is using fishing apparatus which restricts her maneuverability
D.she has any fishing gear on board
第3题：
According to the navigation rules, all of the following are engaged in fishing except a vessel ______.
A.Setting nets
B.Trawling
C.Using a dredging net
D.Trolling
第4题：
For the purpose of the Rules, except where otherwise required, the term ______.
A.vessel includes seaplanes
B.seaplane includes non-displacement craft
C.vessel engaged in fishing includes a vessel fishing with trolling lines
D.vessel restricted in her ability to maneuver includes fishing vessels
第5题：
A vessel sailing shall keep out of the way of all of the following vessels except a vessel ______.
A.not under command
B.engaged on pilotage duty
C.restricted in her ability to maneuver
D.engaged in fishing
第6题：
A vessel engaged in ______ shall not impede the passage of any other vessel navigating within a narrow channel or fairway．
A.mine clearance operation
B.towing operation
C.dredging or surveying or underwater operation
D.fishing
第7题：
A vessel is considered to be "restricted in her ability to maneuver" under the Rules if she is ______.
A.at anchor
B.mineclearing
C.engaged in fishing
D.engaged in towing
第8题：
A power-driven fishing vessel is underway on the high seas and is not engaged in fishing． Which of the following factors determines what lights she will show？
A.Whether she is normally a fishing or a trawling vessel
B.Her gross tonnage
C.Her length
D.The type of gear she carries
第9题：
A vessel engaged in fishing shall not impede the passage of______following a traffic lane．
(1)．A power-driven vessel
(2)．a sailing vessel
(3)．any vessel
(4)．a vessel of less than 20 metres in length
A.(1)
B.(1) & (2)
C.(3)
D.(4)
第10题：
In a crossing situation on open waters, a sailing vessel shall keep out of the way of all the following vessels EXCEPT a vessel ______.
A.not under command
B.retricted in her ability to maneuver
C.engaged in towing
D.Fishing