A.sound signal
B.light signal
C.visual signal
D.radiotelephone
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A.icebreaker support is finished
B.icebreaker support is commencing
C.the icebreaker is icebound
D.the icebreaker is beset
A.I am altering my course to starboard
B.I am altering my course to port
C.I am operating astern propulsion
D.My vessel is stopped and making no way through the water
A.Bruce anchor
B.Dunn anchor
C.Hook anchor
D.Danforth anchor
A.naphtha，vm and p
B.tridecanol
C.cottonseed oil
D.camphor oil
A.piperyline
B.motor gasoline
C.kerosene
D.mineral spirits
最新試題
All of the following are part of the fire triangle EXCEPT（）.
An aneroid barometer on a boat should always be（）.
An airplane should NOT send which signal in reply to a surface craft?（）
Antiseptics are used principally to（）.
An indirect radar echo is caused by a reflection of the main lobe of the radar beam off the observer’s vessel. Which of the following is NOT a characteristic of indirect echoes? （）
An icebreaker assisting a vessel through an ice field would display a visual signal consisting of the code letter “E” (Echo) to signify that “（）”.
All OSV personnel should be familiar with survival craft（）.
An engine compartment gasoline fire requires which type of extinguisher?（）
An “ABC” dry chemical fire extinguisher would be LEAST effective against a fire in（）.
An authorized light to assist in the identification of submarines operating on the surface is a(n)（）.