A.The search target is sighted and then lostB.More than……

单项选择题You are proceeding to a distress site．The survivors are in liferafts.What will make your ship more visible to the survivors（）.

A.Steering a sinuous course
B.Steering a zig-zag course
C.Turning on all available deck lights at night
D.Dumping debris over the side to make a trail to your vessel

单项选择题You are approaching another vessel and see that it has the signal flag “O” hoisted．What is your next action（）.

A.Proceed on present course and speed since the vessel is requesting a pilot
B.Attempt to call the vessel on VHF radiotelephone and begin a search because the vessel has a man overboard
C.Attempt to call the vessel on VHF radiotelephone because it is disabled
D.Approach with caution because the vessel is stopped and making no way through the water

单项选择题When starting CPR on a drowning victim，you should（）.

A.start chest compressions before the victim is removed from the water
B.drain water from the lungs before ventilating
C.begin mouth-to-mouth ventilations as soon as possible
D.do not tilt the head back since it may cause vomiting

单项选择题When carrying out a parallel track search pattern，the course of the search units should normally be which of the following（）.

A.In the same direction as the anticipated drift
B.In the opposite direction of the anticipated drift
C.Perpendicular to the line of anticipated drift
D.Downwind

单项选择题When a rescue vessel approaches a lifeboat in heavy seas，the person in charge of the lifeboat should（）.

A.tie up to the rescue vessel
B.transfer only those personnel who are not seasick
C.wait for calmer weather before transferring personnel
D.transfer all personnel immediately