單項選擇題A self-righting survival craft will return to an upright position provided that all personnel（）.

A.are seated with seat belts on and doors shut
B.are seated with seat belts on and doors open
C.are to shift to one side to right it
D.escape from the craft


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2.單項選擇題A fully loaded motor-propelled lifeboat must be capable of attaining a speed of at least（）.

A.3 knots in smooth water
B.6 knots in smooth water
C.3 knots in rough water
D.6 knots in rough water

3.單項選擇題A certificated lifeboatman assigned to command the lifeboat should（）.

A.be the first individual to board the craft
B.drain the hydraulic pressure before lowering the craft
C.have a list of the persons assigned to the lifeboat
D.All of the above

4.單項選擇題When in command of a lifeboat under oars，the command TOSS OARS means to（）.

A.lift oars to vertical position，trim blades fore and aft with handles resting on the thwarts
B.complete the stroke，come to Oars，raise the oars smartly to the vertical，rest handles on footings and trim blades fore and aft
C.place oars in row locks directly from the boated position or from Stand by oars position
D.complete the stroke (when rowing in ahead motion)，raise the oars with crook of elbow to about 30 degrees，swing blades forward

5.單項選擇題Your ship is sinking rapidly. A container containing an inflatable liferaft has bobbed to the surface upon functioning of the hydrostatic release. Which action should you take?（）.

A.Cut the painter line so it will not pull the liferaft container down
B.Swim away from the container so you will not be in danger as it goes down
C.Take no action because the painter will cause the liferaft to inflate and open the container
D.Manually open the container and inflate the liferaft with the hand pump