A.Carbon dioxide
B.Dry chemical
C.Foam
D.All of the above
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A.observer's meridian
B.Greenwich meridian
C.body's meridian
D.zenith distance
A.blue rotating light
B.intermittent flashing amber/yellow light
C.flashing white light
D.flashing sidelight
A.located in an air-conditioned area
B.mounted in the passenger compartment
C.protected by a collision bulkhead
D.permanently mounted
A.Three lights in a vertical line，the highest and lowest red and the middle white，and anchor lights
B.Three lights in a vertical line，the highest and lowest red and the middle white，ONLY
C.Anchor lights ONLY
D.Anchor lights and sidelights ONLY
A.vessel laying cable
B.vessel towing a submerged object
C.vessel not under command
D.air cushion vessel
最新試題
An inflatable liferaft is floating in its container，attached to the ship by its painter，as the ship is sinking rapidly. Which action should be taken with respect to the liferaft container? （）
An “on-load” release system on a survival craft means the cable can be released（）.
An icebreaker displaying a flag hoist which consists of the code letters “WO” (Whiskey Oscar) is indicating that（）.
All Loran-C transmitting stations are equipped with cesium frequency standards which permit （）.
An entry of water，gas，oil，or other formation fluid into the wellbore is called a（）.
An aneroid barometer on a boat should always be（）.
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 advantage of using chain lashing on heavy vehicles aboard Ro-Ro vessels is that it（）.
An example of a grade B product is（）.