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
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
Manoeuvring information can not be obtained from（）.
Berthing means bringing a vessel to her berth until（）.
Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）
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（）.
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
According to the relevant regulation, lifeboat should be powered by（）.
It is dangerous for vessels without the operational radar（）the estuary.
（）is where the crew eat their meals.
A tide is called diurnal when（）.