A.shall noe be discharged
B.shall be discharged
C.shall be filled
D.shall noe be filled
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A.breaks down when wet
B.kinks be discharged
C.is not elastic
D.stretches
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
最新試題
According to the relevant regulation, lifeboat should be powered by（）.
What is a CORRECT reply to a pilot’s request, How’s your heading?（）
In the Northern hemisphere northerly winds may cause temperature（）.
Full details of all lights and fog signals are shown on（）.
Shipboard Emergency Drills must be carried out at least（）on board cargo ship.
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（）.
It is dangerous for vessels without the operational radar（）the estuary.
Before any loading takes place any signs of the previous cargo should do（）.
When the wave period and the apparent rolling period are the same（）.
The circulation around a low pressure center in the Northern Hemisphere is（）.