单选题The foam extinguisher should be used （）.Ain the endBupside downCdown sideDon top
单选题
The foam extinguisher should be used （）.
A
in the end
B
upside down
C
down side
D
on top
参考解析
解析：
暂无解析
相关考题：
What type of extinguisher should be used for an electric fire? ________A.CO2B.FormC.WaterD.Water and Form
______, as the chemical extinguisher agent, should be used for an electric fire.A.dry chemical or foamB.foam or soda acidC.carbon dioxide or foamD.carbon dioxide or dry chemical
A carbon dioxide fire extinguisher should be recharged ______.A.at least annuallyB.whenever it is below its required weightC.only if the extinguisher has been usedD.before every safety inspection
A foam-type portable fire extinguisher is most useful in fighting a fire in ______.A.generatorsB.oil drumsC.the bridge controlsD.combustible metals
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 foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in ______.A.generatorsB.oil drumsC.the bridge controlsD.combustible metals
At each drill a different person should be in （）(负责)of an extinguisher.A、chargeB、loadC、dischargeD、handle
Never extinguish oil and electrical fires with （）.A、waterB、foam extinguisherC、CO2 extinguisherD、portable extinguisher
单选题Regular foam can be used on all but which flammable liquid?（）AMotor gasolineBJet fuelCCrude petroleumDAlcohol
单选题A portable foam fire extinguisher is placed in operation by（）Aturning it upside downBpressing the foam leverCsqueezing the grip handleDopening the hose valve
单选题A foam-type portable fire extinguisher is most useful in fighting a fire in（）.AgeneratorsBoil drumsCthe bridge controlsDcombustible metals
单选题Compared to the amount of concentrated foam liquid used，the amount of low expansion mechanical foam produced is（）.A97 times greaterB94 times greaterC10 times greaterD2 times greater
单选题What is an advantage of using foam in fire fighting?（）AIt is effective in controlling fire in flowing oil such as coming from a broken fuel lineBIt absorbs heat from materials that could cause reignitionCMost foams can be used jointly with dry chemical extinguishing agents to attack a fire by two methods of extinguishmentDOnce the surface is blanketed with foam and the fire is extinguished，no further foam is required
单选题A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in（）.AgeneratorsBoil drumsCthe bridge controlsDcombustible metals
单选题Which of the following statements regarding low expansion foam and its application is INCORRECT?（）.AFoam should not be used on electrical firesBOne kilo of low expansion foam solution produces much more foamCFoam is only efficient when it covers the top of burning combustiblesDA stream of foam should be deflected off the deck in order to best agitate the fire
单选题（）as the chemical extinguisher agent, should be used for a an electric fire.ADry chemical or foamBFoam or soda acidCcarbon dioxide or foamDcarbon dioxide or dry chemical
单选题Which portable fire extinguisher should be used on a class C fire on board a vessel?（）ACarbon dioxideBWater (stored pressure)CFoamDCarbon tetrachloride
单选题Which statement about firefighting foam is TRUE?（）AFoam conducts electricityBTo be most effective，foam should be directed at the base of the fireCFoam is most effective on burning liquids which are flowingDFoam can ONLY be used to extinguish class A fires
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Which fire extinguishing agent can NOT be used on an ethylenediamine?（）AWater foamBDry chemical powderCWater fogDAlcohol foam
单选题The type of extinguisher which should be used for an electricity fire is（）.Afoam or soda acidBdry chemical or foamCcarbon dioxide or dry chemicalDcarbon dioxide or foam
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A carbon dioxide fire extinguisher should be recharged（）.Aat least annuallyBwhenever it is below its required weightConly if the extinguisher has been usedDbefore every safety inspection