A.reduce the length of the cable
B.pay out more anchor cable
C.back the engines
D.swing the rudder several times to work the anchor into the bottom
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A.Distress
B.Safety
C.All clear
D.Urgency
A.a ship is threatened by grave and imminent danger and requests immediate assistance
B.a calling station has an urgent message about the safety of a person
C.the message following the prefix will be about the safety of navigation
D.the message following is a meteorological warning
A.is 50% water saturated
B.is 90% water saturated
C.temperature is greater than the dew point temperature
D.temperature is equal to，or below the dew point temperature
A.in doubt that another vessel is taking sufficient action to avoid a collision
B.altering course to starboard
C.altering course to port
D.the stand-on vessel and will maintain course and speed
A.SOS three times
B.Additional transmissions to aid direction finding
C.E for one minute，followed by T for one minute
D.Two tones，10-15 seconds each
最新試題
In radiotelephone communications，the prefix PAN-PAN indicates that（）.
What happens to the efficiency of an anchor when it is moved from sand to mud?（）
The term OIL as used in the Oil Pollution Regulations means（）.
The use of the danger signal（）.
What is the normal length of anchor cable used to anchor a vessel?（）
To prevent a wooden hull from leaking you caulk it（）.
What is the primary purpose of a splint applied in first aid?（）
The best method to stop a vessel from dragging anchor in a sand bottom is to（）.
To develop maximum anchor holding power，the optimum angle between the anchor’s shank and the mooring lines is（）.
What form of ice is of land origin?（）