A.1.5 and greater
B.1.25 and greater
C.1.0 and greater
D.0.5 and greater
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A.hold anchor
B.leave anchor
C.let go anchor
D.weigh anchor
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
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
最新試題
The two main types of load cells used in mooring tension gauges are（）.
There is not（）depth of water around the area centered at the lighthouse.
The transmission of messages respecting the dangers specified is free（）cost to the ships concerned.
To prevent a wooden hull from leaking you caulk it（）.
Fog forms when the air（）.
PAN-PAN repeated three times over the radiotelephone indicates which type of message will follow?（）
What is normally used to pass a mooring line to a dock?（）
What is required to launch a boat stowed in a crescent davit?（）
Which radiotelephone signal indicates receipt of a distress message?（）
The expression DROP ANCHOR means（）.