A.contain flammable fumes
B.protect firefighters from flames
C.prevent flames from entering tanks
D.keep flames and sparks from getting out of an engine's exhanst system
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A.increase the ttrim
B.increase ship stability
C.cause a serious list
D.decrease the heeling moment
A.also called decks
B.vertical transverse plates connecting the vertical keel with the margin plates
C.large beams fitted in various parts of the vessel for additional strength
D.found in passenger and berthing spaces only
A.frames to which the tank top and bottom shell are fastened on a double bottomed ship
B.transverse members of the ships frame which support the decks
C.longitudinal beams in the extreme bottom of a ship from which the ships ribs start
D.longitudinal angle bars fastened to a surface for strength
A.floors
B.intercostals
C.stringers
D.tank top supports
A.prevent stress concentration in the bulwark
B.permit easy jettison of deck cargo in an emergency
C.provide opening through the bulwarks for mooring lines
D.allow water shipped on deck to flow off rapidly
最新試題
A tide is called diurnal when（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Manoeuvring information can not be obtained from（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
Which of the following shall not the officers in charge of the navigational watch do?（）
Which of the following is not an operation mode of AIS?（）
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.
The mean draft of a ship is the draft（）.
Before any loading takes place any signs of the previous cargo should do（）.