A.first
B.following control of fire
C.following restoration of vital services
D.only if a threat exists
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A.immediately after restoring vital services
B.immediately
C.following control of flooding
D.following establishment of fire boundaries
A.flash point
B.upper explosive limit
C.lower explosive limit
D.fire point
A.cooling
B.smothering
C.chemical action
D.All of the above
A.a tug comes alongside while the tanker is loading grade D and E cargoes
B.a large，fresh oil spill is discovered immediately adjacent to the side of the tanker
C.there is an electrical storm in the vicinity
D.there is a fire on the dock or on a nearby vessel
A.fixed foam systems to be ineffective
B.faster cooling of the fire
C.the accumulation of explosive gases
D.the fire to spread through the ventilation system
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A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots. You should（）.
Before a tank is to be crude oil washed，the oxygen content in the tank must be measured at a position（）.
Each fire hydrant must have at least one spanner and at least one（）.
Each fire hose coupling on a ship must have threads that meet the specifications of the（）.
A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.
Dry chemical extinguishers extinguish class B fires to the greatest extent by（）.
Each hand portable fire extinguisher must be marked with（）.
Controls for a fixed carbon dioxide system shall be mounted（）.
A fire must be ventilated（）.
Automatic fire dampers in ventilation systems are operated by use of（）.