单项选择题
In a Williamson turn，the rudder is put over full until the（）.
A.vessel has turned 90°From her original course
B.vessel has turned 60°From her original course
C.vessel is on a reciprocal course
D.emergency turn signal sounds
相关考题
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单项选择题
If you see someone fall overboard from a ship，you should（）.
A.immediately jump in the water to help the individual
B.call for help and keep the individual in sight
C.run to the radio room to send an emergency message
D.go to the control room for the distress flares -
单项选择题
If an emergency pump control is used as the emergency shutdown on a tank vessel，it must（）.
A.stop the flow of oil at the main deck manifold
B.prevent the oil from leaving the shore facility
C.prevent the oil from siphoning through the pump
D.None of the above -
单项选择题
How should you signal the crane operator to stop in an emergency?（）
A.Extend arm with the palm down and hold this position rigidly
B.Place clasped hands in front of your body
C.Extend arm and move hand rapidly right and left with the palm down
D.Place both fists in front of the body with the thumbs pointing outward
