A.of
B.on
C.at
D.in
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A.flashing amber light
B.yellow light with the same characteristics as the sternlight
C.all-round yellow light
D.yellow light with the same characteristics as the masthead light
A.fuel oil
B.sludge
C.oil refuse
D.All of the above
A.Mayday
B.Pan
C.Safety
D.Interco
A.SOS sent three times
B.ten one-second dashes with a four-second interval between them
C.twelve four-second dashes with a one-second interval between them
D.twelve one-second dashes with a short interval between them
A.1.5 and greater
B.1.25 and greater
C.1.0 and greater
D.0.5 and greater
最新試題
The expression DROP ANCHOR means（）.
What is the normal length of anchor cable used to anchor a vessel?（）
The term OIL as used in the Oil Pollution Regulations means（）.
PAN-PAN repeated three times over the radiotelephone indicates which type of message will follow?（）
The vessel was drifted off from her（）due to strong wind.
What is required to launch a boat stowed in a crescent davit?（）
Which radiotelephone signal indicates receipt of a distress message?（）
What form of ice is of land origin?（）
When testing a Class A EPIRB you will know the EPIRB is working properly if you hear on 99.5 Mhz FM or any vacant frequency on a nearby AM radio（）.
To prevent a wooden hull from leaking you caulk it（）.