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
最新試題
A fire starting by spontaneous combustion can be expected in which condition?（）.
Due to the hazards involved with Halon extinguishers on a ship，the size II extinguisher may only be used（）.
A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots. You should（）.
Each fire hydrant must have at least one spanner and at least one（）.
Blocking open or removing fire dampers can cause（）.
Each fire hydrant serving machinery spaces containing oil fired boilers，internal combustion machinery，or oil fuel units must be equipped with a（）.
Before using a fixed CO2 system to fight an engine room fire，you must（）.
A fire in electrical equipment should be extinguished by using（）.
On a hydrocarbon flammability chart the line which extends from 0% to 21.8% oxygen，lying tangent to the flammability range，is called the（）.
Before a tank is to be crude oil washed，the oxygen content in the tank must be measured at a position（）.