A、one-third
B、two-thirds
C、one-fourth
D、two-fourths
更多“The fire pumps must be capable of delivering a total quantity of water at a defined head, not less than （） of the total bilge pumping capacity.”相关的问题
A、the pump discharge B、the manifold connection C、each fire station discharge D、the pump station
A、the pump discharge B、the manifold connection C、each fire station discharge D、the pump station
A、the pump discharge B、the manifold connection C、each fire station discharge D、the pump station
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、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、check valve installed in the line B、shut off valve at a manifold near the pump C、quick disconnect union within ten feet of the pump D、regulator in the line set at 125 psi
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、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
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