A.cooling
B.smothering
C.chemical action
D.All of the above
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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
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
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Each hose in the fuel transfer system for helicopter refueling must meet the standards of the（）.
A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.
Each fire hydrant serving machinery spaces containing oil fired boilers，internal combustion machinery，or oil fuel units must be equipped with a（）.
Convection spreads a fire by（）.
During a fire drill on a ship，what action is required?（）
Each fireman’s outfit and its spare equipment on a vessel must be stowed（）.
Automatic fire dampers in ventilation systems are operated by use of（）.
According to the T-Boat regulations the reason for providing adequate ventilation for a battery storage area is to prevent（）.
Each fire hose coupling on a ship must have threads that meet the specifications of the（）.
On a hydrocarbon flammability chart the line which extends from 0% to 21.8% oxygen，lying tangent to the flammability range，is called the（）.