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 authorized light to assist in the identification of submarines operating on the surface is a(n)（）.
All towing vessels of 26 feet or longer while navigating are required to carry which item? （）
An example of an anchor which has a stock is a（）.
Antiseptics are used principally to（）.
An example of a grade C product is（）.
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 icebreaker may use the code letter “K” to remind ships of their obligation to listen continuously on their radio. This signal may be made by any of the following EXCEPT（）.
An “atoll cloud” forming over an island due to heating of the land during the daytime would be which type? （）
An all-round flashing yellow light may be exhibited by a(n)（）.
Air circulation is caused or affected by（）.