A.posted with instructions on the operation of the system
B.ventilated and equipped with explosion-proof switches
C.painted with red and black diagonal stripes
D.equipped with a battery powered source of emergency lighting
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A.Carbon dioxide
B.Water (stored pressure)
C.Dry chemical
D.Foam
A.deteriorate and give off noxious gasses
B.spontaneously heat and catch fire
C.attract lice and other vermin and serve as a breeding ground
D.None of the above
A.fire-main system
B.feed-water system
C.freshwater sanitary system
D.domestic water tank
A.two rockets，one of which shall be the buoyant type
B.three rockets，one of which shall be the buoyant type
C.four rockets，two of which shall be the buoyant type
D.five rockets，two of which shall be the buoyant type
A.the cap should be removed to drain the boat when it is waterborne
B.the cage must be free of rubbish or the ball may not seat properly
C.there is an automatic ball check located in a siphon tube
D.the small lever to release the rubber ball float must be turned counterclockwise
最新試題
On a ship，a cabinet or space containing the controls or valves for the fixed firefighting system must be（）.
In order for the automatic lifeboat drain to operate properly（）.
Each open lifeboat carried on a vessel on an international voyage must have（）.
During a fire drill on a ship，what action is required?（）
In launching a covered lifeboat，what would safely lower the lifeboat from inside the lifeboat cabin?（）
Frapping lines are fitted to lifeboat davits to（）.
Fire fighting equipment requirements for a particular vessel may be found on the（）.
If absolutely necessary，the best way to land on a beach in a motor lifeboat is to（）.
Normally，potable water systems are connected directly to the（）.
The sea painter is secured in the lifeboat by（）.