A.breaks down when wet
B.kinks be discharged
C.is not elastic
D.stretches
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A.Water fog
B.Carbon dioxide
C.Dry chemical
D.Solid stream of water
A.cutting off supply of oxygen
B.removing the fuel
C.cooling below the ignition temperature
D.spraying with water
A.vertical position
B.horizontal position
C.boom stop angle
D.minimum radius angle
A.reading the gage pressure
B.weighing the extinguisher
C.discharging a small amount of CO2
D.seeing if the seal has been broken
A.transverse moment
B.vertical moment
C.righting moment
D.inclining moment
最新試題
The helm command PORT TWENTY means（）.
It is dangerous for vessels without the operational radar（）the estuary.
When steering by autopilot,how often should the steering be checked?（）
Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）
Full details of all lights and fog signals are shown on（）.
Which of the following shall not the officers in charge of the navigational watch do?（）
What is it called when it is possible to ignite the vapour above the oil?（）
The mean draft of a ship is the draft（）.
（）is the act of allocating space to containers on board of a container ship in the order of the discharge ports.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.