A、Conducts electricity
B、Difficult to store
C、Large volume necessary to be effective
D、Ineffective in powdered metal fires
更多“Which is a disadvantage of Halon as a fire extinguishing medium?（）”相关的问题
A、for which neither party is responsible B、for which the owner is responsible C、for which either party is responsible D、for which the charterer is responsible
A、for which neither party is responsible B、for which the owner is responsible C、for which either party is responsible D、for which the charterer is responsible
A、a watch which is kept with lower standard B、a watch which is kept when the ship isnt sailing C、a watch which is kept when the ship is sailing D、a watch which is kept when the ship is in a restricted visibility area
A、It is lower than the ignition temperature B、It is the temperature at which a substance will spontaneously ignite C、It is the temperature at which a substance, when ignited, will continue to bum D、It is the temperature at which the released vapors will fall within the explosive range
A、after the point is reached at which the failures begin to increase rapidly B、before the point is reached at which the failures begin to increase rapidly C、before the point is reached at which the failures begin to increase slowly D、after the point is reached at which the failures begin to increase slowly
A、small plate which fills the aperture between riveted strakes and the vessel framing B、backing plate which is used to level the strakes while riveting，and then removed C、internal frame to which the side shell is riveted D、seam that is welded after riveting is completed
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