题目内容
（请给出正确答案）
A.Two green balls in a vertical line
B.Two black balls in a vertical line
C.A black ball at the foretruck and yardarm ends
D.A shape of two cones point to point
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
更多“A vessel engaged in minesweeping on the high seas carries which of the following day signa”相关的问题
Which vessel when anchored at night，would not be required to show anchor lights？
A.A vessel engaged in underwater operations
B.A vessel engaged in mine clearance
C.A vessel engaged on pilotage duty
D.A vessel engaged in survey operations
________ is not a vessel restricted in her ability to maneuver．
A.A vessel engaged in laying， servicing or picking up a navigation mark， submarine cable or pipeline
B.A vessel engaged in dredging， surveying or underwater operations
C.A vessel engaged in replenishment or transferring persons， provisions or cargo while underway
D.A power driven vessel which because of her draught in relation to the available depth and width of navigation water is severely restricted in her ability to deviate from the course she is following
All of the following are engaged in fishing EXCEPT______．
A.A vessel trawling
B.A vessel trolling
C.A vessel setting nets
D.A vessel tending lines
In order for a vessel to be engaged in fishing she must be ().
A.underway
B.using gear which extends more than 50 meters outboard
C.using a seine of some type
D.using gear which restricts her maneuverability
A vessel showing a rigid replica of the International Code flag "A" is engaged in ______.
A.diving operations
B.dredging
C.fishing
D.mineclearance operations
Vessel engaged in the launching or recovery of aircraft is called ().
A.A vessel restricted in her ability to maneuver
B.A vessel not under command
C.A vessel constrained by her draught
D.A vessel not under way
Which vessel，when anchored at night，is NOT required to show anchor lights ().
A.A power-driven vessel
B.A vessel engaged on pilotage duty
C.A vessel dredging
D.A vessel restricted in her ability to maneuver
A.A vessel engaged in diving operations
B.A pilot vessel
C.A vessel trawling
D.All of the above
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
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
(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)
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