搜题

【单项选择题】

A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.

A、A.a low velocity spray applicator

B、B.a water spray or solid stream

C、C.at least two spray patterns of water

D、D.at least 25 psi delivered pressure

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更多“A fire main system must have enough fire hydrants so that each accessible space may be sprayed with（）.”相关的问题

第1题

[] Your vessel is equipped with m>am> fixed C02 m>systemm> m>am>nd m>am> m>firem> mm>am>in m>systemm>. In the event of m>am>n electricm>am>l m>firem> in the engine room whm>am>t is the correct procedure for fighting the m>firem>?（）.

m>Am>、m>Am>.Use the C02 m>systemm> m>am>nd evm>am>cum>am>te the engine room B、B.Use the m>firem> mm>am>in m>systemm> m>am>nd evm>am>cum>am>te the engine room C、C.Evm>am>cum>am>te the engine room m>am>nd use the C02 m>systemm> D、D.Evm>am>cum>am>te the engine room m>am>nd use the m>firem> mm>am>in m>systemm>

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第2题

[单选题] Your vessel is equipped with m>am> fixed CO2 m>systemm> m>am>nd m>am> m>firem> mm>am>in m>systemm>. In the event of m>am>n electricm>am>l m>firem> in the engine room whm>am>t is the correct procedure for fighting the m>firem>?（）

m>Am>、Use the CO₂ m>systemm> m>am>nd evm>am>cum>am>te the engine room B、Use the m>firem> mm>am>in m>systemm> m>am>nd evm>am>cum>am>te the engine room C、Evm>am>cum>am>te the engine room m>am>nd use the CO₂ m>systemm> D、Evm>am>cum>am>te the engine room m>am>nd use the m>firem> mm>am>in m>systemm>

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第3题

[单选题] （）is mm>am>in emergency m>firem> m>systemm> in m>am>ll merchm>am>nt ships.

m>Am>、CO₂ m>systemm> B、Fom>am>m m>systemm> C、Dry power m>systemm> D、Wm>am>ter supply m>systemm>

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第4题

[单选题] m>Am> m>firem> hose with m>am> nozzle m>am>ttm>am>ched must be connected to em>am>ch hydrm>am>nt except when exposed to hem>am>vy wem>am>ther or when the（）.

m>Am>、m>firem> hose might be dm>am>mm>am>ged by cm>am>rgo operm>am>tions B、vessel is in port C、m>firem>-mm>am>in m>systemm> is not chm>am>rged D、m>firem> pumps m>am>re used for purposes other thm>am>n supplying wm>am>ter to the m>firem> mm>am>in

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第5题

[] Normm>am>lly，potm>am>ble wm>am>ter m>systemm>s m>am>re connected directly to the（）.

m>Am>、m>Am>.m>firem>-mm>am>in m>systemm> B、B.feed-wm>am>ter m>systemm> C、C.freshwm>am>ter sm>am>nitm>am>ry m>systemm> D、D.domestic wm>am>ter tm>am>nk

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第6题

[单选题] Whm>am>t is the most vulnerm>am>ble pm>am>rt of the m>firem> mm>am>in m>systemm> on bom>am>rd m>am>n offshore rig?（）

m>Am>、The m>firem> pump B、Exposed hm>am>rd piping C、The hydrm>am>nt vm>am>lve D、The m>firem> hose

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第7题

[单选题] In the m>firem> mm>am>in m>systemm>, quick clem>am>ning strm>am>iners m>am>re locm>am>ted m>am>t the（）.

m>Am>、pump suctions B、pump dischm>am>rge C、m>firem> hydrm>am>nts D、hose nozzle

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第8题

[单选题] Which of the following components provides m>am> direct source of sem>am>wm>am>ter for the m>firem> mm>am>in m>systemm>?（）

m>Am>、Rose box B、Sem>am> chest or spool piece C、Sluice vm>am>lve D、m>Firem> pump stuffing box

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第9题

[单选题] Multiple m>firem> pumps mm>am>y be used for other purposes provided thm>am>t one pump is（）.

m>Am>、on line to the m>firem> mm>am>in B、kept m>am>vm>am>ilm>am>ble for use on the m>firem> mm>am>in m>am>t m>am>ll times C、cm>am>pm>am>ble of being connected to the m>firem> mm>am>in D、rm>am>ted m>am>t or m>am>bove 125 psi

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第10题

[] Which m>firem> detection m>systemm> is m>am>ctum>am>ted by sensing m>am> hem>am>t rise in m>am> compm>am>rtment?（）

m>Am>、m>Am>.Mm>am>num>am>l m>firem> detection m>systemm> B、B.m>Am>utomm>am>tic m>firem> detection m>systemm> C、C.Smoke detection m>systemm> D、D.Wm>am>tchmm>am>n's supervisory m>systemm>

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