单选题When choosing extinguishers to fight a Class “B” fire do NOT use().Acarbon dioxideBdry chemicalCfoam (stored-pressure type)Dwater (cartridge-operated)

单选题
When choosing extinguishers to fight a Class “B” fire do NOT use().
A

carbon dioxide

B

dry chemical

C

foam (stored-pressure type)

D

water (cartridge-operated)


参考解析

解析: 暂无解析

相关考题:

When will the fire department come to conduct a fire prevention inspection in our company?A. Next month. I’ve checked hydrants and fire-extinguishers on each floorB.Next day. The manager will check hydrants and other equipment in the building.C.Next week. But hydrants and fire extinguishers on each floor has already been checkedD.The day before yesterday. I had already checked hydrants and fire extinguishers on each floor.

The class of fire on which a blanketing effect is essential to extinguish the fire isA.Class 'A'B.Class 'B'C.Class 'C'D.Class 'D'

Portable carbon dioxide fire extinguishers should be sent ashore to be rechargedA.when the remaining charge volume is less than 90 percent of the required volumeB.at each inspection for certificationC.at each annual inspectionD.when the weight loss exceeds 10% of weight of charge

At the earliest indication of fire aboard your vessel, you must FIRST ______.A.locate the fireB.determine which type of fire is burningC.sound the alarmD.fight the fire

When inspecting a tank barge to see that it has all the required fire extinguishers and other safety items aboard,which of the following is the best source for determining what is required?A.The supervisor in charge of the dock to which the barge is tied upB.Part 38 of the Rules and Regulations for Tank VesselsC.The Certificate of Inspection of the bargeD.The local fire marshal

All portable fire extinguishers must be capable of being ______.A.carried by hand to a fireB.carried or rolled to a fireC.recharged in the fieldD.used on class “B” fire

The () teacher punishes his students when they don't do their homework or talk in class.A.spiritualB.specificC.strictD.stressed

Under what conditions would the use of a Class C fire extinguisher be preferable to a Class A extinguisher? C类火灾灭火器比A类灭火器更适用于以下哪一种情况?()A、A .When the fire involves paper products当火灾和纸制品有关时B、B .When the fire is caused by flammable products当火灾由易燃物造成C、C .When the fire involves electrical equipment当火灾和电器设备有关时D、D .When the fire is in an enclosed area当火灾发生在一个封闭空间内

Carry ()(手提灭火器)to the fire place.A、extinguishersB、portable extinguishersC、dry foam extinguishersD、CO2 extinguishers

CO2 and Halon extinguishers are used for electrical fire, as well as ()fire.A、commonB、oilC、electricalD、chemical

单选题Halon fire extinguishers are NOT effective when used on which types of fires?()AFires in electrical equipmentBFlammable oils and greasesCClass A fires in ordinary combustiblesDMaterials containing their own oxygen

单选题Which of the listed fire extinguishers cannot be easily recharged aboard ship?()ASoda acidBCarbon dioxideCDry chemicalDCartridge-operated Foam

单选题Portable foam type fire extinguishers are most effective on().Amattress firesBoil firesCwood firesDAll of the above

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Which of the following statements represents the correct action to take when three crew members discover a fire?()AOne man report the fire, and the other two men fight the fireBOne man report the fire, one man fight the fire, and one man evacuate and secure the areaCOne man report the fire, one man fight the fire, and one man act as a safety observerDAll three men fight the fire and report it immediately after it is extinguished

单选题Fire extinguishers of sizes III,IV,and V are designated as().AportableBsemi-portableCfixedDdisposable

单选题When inspecting a tank barge to see that it has all the required fire extinguishers and other safety items aboard,which of the following is the best source for determining what is required? ()AThe supervisor in charge of the dock to which the barge is tied upBPart 38 of the Rules and Regulations for Tank VesselsCThe Certificate of Inspection of the bargeDThe local fire marshal

单选题Which of the fire extinguishing agents listed is the safest to use when combating a class C fire?()ACO2BFoamCWater fogDSoda acid

单选题Which of the listed fire extinguishers is recommended for use on an electrical switchboard fire?()ACO2BABC dry chemicalCCO2 propelled foamDAll of the above

单选题All portable fire extinguishers must be capable of being().Acarried by hand to a fireBcarried or rolled to a fireCrecharged in the fieldDused on class 'B' fires

单选题Halon extinguishers used on a class C fire should be directed at the().Abase of the equipmentBtop of the equipmentCpower sourceDsource of the fire

单选题Halon from extinguishers used on a class B fire,should be directed().Aat the top of the flamesBat the base of the fire near the edgeCin short quick burstsDtoward the upwind side of the fire

单选题Due to the hazards involved with Halon extinguishers on a ship,the size II extinguisher may only be used().AoutsideBon class C firesCin an emergencyDon class B fires

单选题What is the MOST important consideration when determining how to fight an electrical fire?()AWhether the fire is in machinery or passenger spacesBDanger of shock to personnelCThe amount of toxic fumes created by the extinguisherDMaintaining electrical power

单选题Under what conditions would the use of a Class C fire extinguisher be preferable to a Class A extinguisher? C类火灾灭火器比A类灭火器更适用于以下哪一种情况?()AA .When the fire involves paper products当火灾和纸制品有关时BB .When the fire is caused by flammable products当火灾由易燃物造成CC .When the fire involves electrical equipment当火灾和电器设备有关时DD .When the fire is in an enclosed area当火灾发生在一个封闭空间内

单选题When used to fight fire,carbon dioxide().Ais effective if used promptly on an oil fireBhas a greater cooling effect than waterCis lighter than airDis harmless to cargo and crew

单选题Portable fire extinguishers must be provided for the cargo tank area of an unmanned tank barge().Aonly when fully loadedBif one or more tanks are fullCwhen transferring cargoDonly when the barge is being towed