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.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
A.remote operated valve
B.fusible link
C.CO2 system pressure switch
D.heat or smoke detector
A.accumulation of carbon dioxide gas that chokes the battery
B.accumulation of explosive and toxic gases the battery can generate
C.mildew or dry rot in the battery box
D.battery failure including battery case meltdown caused by excessive heat
A.Paints,varnish,or other liquid flammables are stowed in a dry stores locker
B.Inert cargoes such as pig iron are loaded in a wet condition
C.Oily rags are stowed in a metal pail
D.Clean mattresses are stored in contact with an electric light bulb
A.the other services are run off a reducing station with a pressure gage
B.one of the required pumps is kept availabe for use on the fire main system at all times
C.no relief valves are installed
D.all of the above conditions are met
A.when using an indirect attack on the fire such as flooding with water
B.to prevent the gases of combustion from surrounding the firefighters
C.to minimize heat buildup in adjacent compartments
D.if compressed gas cylinders are stowed in the compartment on fire
A.a low velocity spray applicator
B.a water spray or solid stream
C.at least two spray patterns of water
D.at least 25 psi delivered pressure
最新试题
Each fire hydrant serving machinery spaces containing oil fired boilers,internal combustion machinery,or oil fuel units must be equipped with a().
During a fire drill on a ship,what action is required?()
Automatic fire dampers in ventilation systems are operated by a().
Each fire pump on a ship must have a pressure gauge located at().
Before using a fixed CO2 system to fight an engine room fire,you must().
Each fire hose coupling on a ship must have threads that meet the specifications of the().
Due to the hazards involved with Halon extinguishers on a ship,the size II extinguisher may only be used().
Dry chemical fire extinguishers are effective on which type(s) of fire?()
Cargo transfer operations on a tanker need NOT be stopped when().
During the required periodic abandon ship drill aboard a ship,each person not assigned duties in the muster list is().