單項選擇題In a racetrack turn，to recover a man overboard，the vessel is steadied for the SECOND time after a turn of how many degrees from the original heading?（）

A.60°
B.135°
C.180°
D.360°


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1.單項選擇題Immediately after abandoning a vessel，lookouts should be posted aboard liferafts to look for（）.

A.survivors in the water
B.food and water
C.land
D.bad weather

2.單項選擇題If，for any reason，it is necessary to abandon ship while far out at sea，it is important that the crew members should（）.

A.separate from each other as this will increase the chances of being rescued
B.get away from the area because sharks will be attracted to the vessel
C.immediately head for the nearest land
D.remain together in the area because rescuers will start searching at the vessel's last known position

3.單項選擇題If you see anybody fall overboard，act as follows except（）.

A.tell an officer/crew the person's position in the water，or telephone the bridge immediately
B.throw lifebuoys overboard
C.call out "Man overboard" and keep your eyes on the person in the water
D.try to find medicine for the person to use when he is rescued

4.單項選擇題An immersion suit must be equipped with a(n)（）.

A.air bottle for breathing
B.whistle and light
C.whistle，light，and reflective tape
D.whistle，light，and sea dye marker

5.單項選擇題An emergency sea anchor may be constructed by using（）.

A.a boat bucket
B.an air tank filled with water
C.an oar and canvas weighted down
D.All of the above