A.week
B.month
C.crew change
D.other week
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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
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
最新試題
Each open lifeboat carried on a vessel on an international voyage must have（）.
Frapping lines are fitted to lifeboat davits to（）.
After abandoning ship，you should deploy the sea anchor from a liferaft to（）.
On a ship，how many ring buoys are required to have a buoyant line attached?（）
On a ship，a fire drill shall be conducted once every（）.
On a ship，firefighting equipment must be inspected once every（）.
Normally，potable water systems are connected directly to the（）.
According to the ship regulations，the capacity of a liferaft is required to be marked（）.
On a ship，a fixed carbon dioxide or other approved system must be installed（）.
On a ship，when may a work vest be substituted for a required life preserver?（）