单选题CO2 extinguisher is for an electrical fire.（）A二氧化碳灭火器用于灭普通火。B二氧化碳灭火器用于灭电火。C二氧化碳灭火器用于灭油火。D二氧化碳灭火器用于灭木质火。
单选题
CO2 extinguisher is for an electrical fire.（）
A
二氧化碳灭火器用于灭普通火。
B
二氧化碳灭火器用于灭电火。
C
二氧化碳灭火器用于灭油火。
D
二氧化碳灭火器用于灭木质火。
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相关考题：
On a vessel, a CO2 extinguisher is checked by ______.A.reading the gage pressureB.weighing the extinguisherC.discharging a small amount of CO2D.seeing if the seal has been broken
A foam-type portable fire extinguisher would be most useful in combating a fire in ______.A.solid materials such as wood or bales of fiberB.flammable liquidsC.a piece of electrical equipmentD.combustible metallic solid
A portable dry chemical fire extinguisher discharges by ______.A.gravity when the extinguisher is turned upside downB.pressure from a small CO2 cartridge on the extinguisherC.air pressure from the hand pump attached to the extinguisherD.pressure from the reaction when water is mixed with the chemical
After using a CO2 portable extinguisher, it should be ______.A.put back in service if some CO2 remainsB.hydrostatically testedC.retaggedD.Recharged
How do you operate a portable CO2 fire extinguisher?______.A.Point the horn downB.Turn cylinder upside-downC.Break the rupture discD.Pull pin, squeeze grip
In order to discharge a CO2 portable fire extinguisher, the operator must FIRST ______.A.invert the CO2 extinguisherB.squeeze the two trigger handles togetherC.remove the locking pinD.open the discharge valve
CO2 and Halon extinguishers are used for electrical fire, as well as （）fire.A、commonB、oilC、electricalD、chemical
CO2 extinguisher is for an electrical fire.（）A、二氧化碳灭火器用于灭普通火。B、二氧化碳灭火器用于灭电火。C、二氧化碳灭火器用于灭油火。D、二氧化碳灭火器用于灭木质火。
单选题A “fifteen-pound” CO2 extinguisher is so called because（）.Athere are fifteen pounds of CO2 in the containerBthe container，when full，weighs fifteen poundsCthe pressure at the discharge nozzle is l5 psiDthe empty container weighs fifteen pounds
单选题After using a CO2 extinguisher on a ship，it should be（）.Aput back in service if some CO2 remainsBhydrostatically testedCretaggedDrecharged
单选题After using a C02 portable extinguisher,it should be（）.Aput back in service if some CO2 remainsBhydrostatically testedCretaggedDrecharged
单选题Never extinguish oil and electrical fires with （）.AwaterBfoam extinguisherCCO2 extinguisherDportable extinguisher
单选题To determine if a CO2 fire extinguisher is fully charged，you would（）.AOperate the trigger valveBWeigh the extinguisherCTest with a pressure gaugeDRead the date of last test
单选题A CO2 extinguisher on a ship which has lost 10% of its charge must be（）.Aused at the earliest opportunityBhydrotestedCrechargedDweighed again in one month
单选题How do you operate a portable CO2 fire extinguisher?（）APoint the horn downBTurn cylinder upside-downCBreak the rupture discDPull pin，squeeze grip
单选题If a CO2 fire extinguisher is not readily available, which of the listed fire extinguishers would be best suited to combat a small electrical fire in a switchboard?（）ADry chemicalBHalonCLow velocity fogDSteam
单选题If you are unable to stop a diesel engine by any other means，you should（）.Adischarge a CO2 extinguisher in the air inletBpull off the distributor capCsecure the jacket waterDsecure the starting air supply valve
单选题A foam-type portable fire extinguisher would be most useful in combating a fire in（）.Asoild materials such as wood or bales of fiberBflammable liquidsCa piece of electrical equipmentDcombustible metallic solids
单选题A portable dry chemical fire extinguisher discharges by（）.Agravity when the extinguisher is turned upside downBpressure from a small CO2 cartridge on the extinguisherCair pressure from the hand pump attached to the extinguisherDpressure from the reaction when water is mixed with the chemical
单选题关闭所有防火门并使用干粉灭火器。（）AClose all fire doors and use the dry powder extinguisher.BClose all fire doors and use the foam extinguisher.CClose all fire doors and use the CO2 extinguisher.DClose all fire rooms and use the dry powder extinguisher.
单选题When fighting an electrical fire, you should first （）.Astop ventilation to the areaBstop the vesselCsecure electricity to the circuitDapply CO2 to the fire
单选题Which types of portable extinguisher should you watch for the reflash of the fire?（）Afoam and waterBCO2 and dry chemicalCdry chemical and waterDfoam and CO2
单选题An ABC dry chemical fire extinguisher would be LEAST effective against a fire in（）.Aa mattressBspilled liquids such as oil or paintChigh voltage electrical gearDa trash can
单选题Which is the proper method of determining whether a portable CO2 fire extinguisher needs recharging?（）ACheck the tag to see when the extinguisher was last chargedBRelease a small amount of CO2; if the CO2 discharges，the extinguisher is acceptableCWeigh the extinguisher and compare the weight against that stamped on the valveDRecharge the extinguisher at least once each year
单选题A CO2 portable extinguisher is annually checked by（）.Areading the gage pressureBweighing the extinguisherCdischarging a small amount of CO2Dseeing if the seal has been broken
单选题What is the best title for this passage?AThe Dangers of a Fire.BThe Cause of a Fire.CLearn to Use a Fire Extinguisher.DBe Ready for a Fire.