A.contaminating food with extinguishing agent
B.shutting all sources of air into the compartment
C.closing the sea chest
D.a grease fire in the ventilation system
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A.remain on course and hold speed
B.change course and put the stern to the wind
C.change course to put the wind on either beam and increase speed
D.remain on course but slack the speed
A.cooling the gas below the ignition point
B.cutting off the supply of oxygen
C.stopping the flow of gas
D.interrupting the chain reaction
A.stop the ventilation
B.sound the general alarm
C.determine the source of the fire
D.attempt to extinguish the fire
A.permit the passage of vapor but not of flame
B.prevents the passage of flammable vapors
C.prevents inert gas from leaving a tank
D.permits vapors to exit but not enter a tank
A.generators
B.oil drums
C.the bridge controls
D.combustible metals
最新試題
The mean draft of a ship is the draft（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Before any loading takes place any signs of the previous cargo should do（）.
In the Northern hemisphere northerly winds may cause temperature（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.
（）is on the panel of radar.
According to the relevant regulation, lifeboat should be powered by（）.
When the wave period and the apparent rolling period are the same（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
Full details of all lights and fog signals are shown on（）.