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
更多“A fire pump may be used for other purposes if（）.”相关的问题
A、on line to the fire main B、kept available for use on the fire main at all times C、capable of being connected to the fire main D、rated at or above 125 psi
A、must be fixed if the vessel exceeds 12 meters in length B、may be used as a fire pump C、must be portable if there are more than 4 watertight compartments D、must be capable of pumping at least 450 gpm
A、the other services are run off a reducing station with a pressure gage B、a separate fire pump is available for use on the fire main C、all other services are operated by a manifold near the pump D、All of the above
A、the other services are run off a reducing station with a pressure gage B、one of the required pumps is kept available 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、increased pump speed B、excessive pump discharge pressure C、too low of a tilting box angle D、low pump speed
A、fire hose might be damaged by cargo operations B、vessel is in port C、fire-main system is not charged D、fire pumps are used for purposes other than supplying water to the fire main
A、A.fire pumps B、B.fire mains C、C.hydrants and hoses D、D.closing appliances which are kept permanently closed at sea
A、All watertight doors which are in use while the vessel is underway shall be operated B、All lifeboat equipment shall be examined C、Fire pumps shall be started and all exterior outlets opened D、All of the above
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