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
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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
A.secure the engine room ventilation
B.secure the machinery in the engine room
C.evacuate all engine room personnel
D.All of the above
A.immediately above the level of the oil
B.at the top of the tank
C.in the vent riser
D.one meter from the deck
A.fuel tanks
B.spark plugs
C.carburetors
D.distributors
A.remotely operated valves
B.fusible links
C.C02 system pressure switches
D.heat or smoke detectors
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Convection spreads a fire by（）.
Automatic fire dampers in ventilation systems are operated by use of（）.
During the required periodic abandon ship drill aboard a ship，each person not assigned duties in the muster list is（）.
CO2 extinguishes a fire by（）.
Each part of the fire-main system located on an exposed deck must be（）.
Each fire hose coupling on a ship must have threads that meet the specifications of the（）.
A fire pump may be used for other purposes if（）.
Due to the hazards involved with Halon extinguishers on a ship，the size II extinguisher may only be used（）.
Blocking open or removing fire dampers can cause（）.
Backfire flame arrestors are installed on（）.