單項選擇題Aboard a survival craft，ether can be used to（）.

A.start the engine in cold weather
B.aid in helping personnel breathe
C.prime the sprinkler system
D.prime the air supply


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1.單項選擇題A towline should be fastened to（）.

A.the chocks at the bow of a towed vessel
B.the most forward，centermost point of a towed vessel such asa sturdy bow rail
C.the mast of a towed sailboat
D.a secure fitting near the bow of the towed vessel

2.單項選擇題A shipmate chokes suddenly，cannot speak，and starts to turn blue. You should（）.

A.perform the Heimlich maneuver
B.make the victim lie down with the feet elevated to get blood to the brain
C.immediately administer CPR
D.do nothing until the victim becomes unconscious

3.單項選擇題A right-handed propeller will cause the survival craft to（）.

A.walk the stern to starboard in reverse
B.walk the stern to port in reverse
C.run faster than a left-handed propeller
D.right itself if capsized

4.單項選擇題A rescuer can most easily determine whether or not an adult victim has a pulse by checking the pulse at the（）.

A.carotid artery in the neck
B.femoral artery in the groin
C.brachial artery in the arm
D.radial artery in the wrist

5.單項選擇題A racetrack turn would be better than a Williamson turn in recovering a man overboard if（）.

A.the man has been missing for a period of time
B.the sea water is very cold and the man is visible
C.there is thick fog
D.the wind was from astern on the original course