单选题To prevent the spread of fire by conduction you should（）.Acool the bulkheads around the fireBremove combustibles from direct exposureCclose all openings to the areaDshut off all electric power
单选题
To prevent the spread of fire by conduction you should（）.
A
cool the bulkheads around the fire
B
remove combustibles from direct exposure
C
close all openings to the area
D
shut off all electric power
参考解析
解析：
暂无解析
相关考题：
I suggest we should cancel the performance immediately to________ .A.prevent fire from occurringB.avoid a trampleC.keep people awayD.stop the traffic flow
To prevent the spread of fire by conduction, you should ______.A.cool the bulkheads around the fireB.remove combustibles from direct exposureC.close all openings to the areaD.shut off all electric power
In the event of fire in a machinery space，______.A.the fixed carbon dioxide system should be used only when all other means of extinguishment have failedB.the fixed carbon dioxide system should be used immediately，as it is the most efficient means of extinguishmentC.water in any form should not be used as it will spread the fireD.the space should be opened 5 minutes after flooding CO2 to prevent injury to personnel
What should you be concerned with when loading and securing vehicles aboard a Ro-Ro vessel ________．A.That all fuel is drained from the vehicles' tanks to prevent fire hazardB.The size，weight，and center of gravity of vehicle/cargo unitC.The preferred stowage of vehicles is athwartships wherever possibleD.The vehicles' brakes should not be set to allow for adjusting the lashings
What should you be concerned with when loading and securing vehicles on a Ro-Ro ________．A.Number，position and angle of lashesB.Number of axlesC.Disconnecting the battery cables to prevent fire hazardD.Minor air pressure changes in the tires
The high-velocity fog tip used with the all-purpose fire fighting nozzle should always be ______．A.Attached by a chainB.Coated with heavy grease to prevent corrosionC.Painted red for identity as emergency equipmentD.Stored in the clip at each fire station
Which of the following statements is FALSE concerning the proper procedure in handling a fire hose ________．A.A 1.5 inch hose should be deployed with a minimum of a nozzleman and hosemanB.Back-up hosemen should be positioned wherever the hose makes a significant turnC.The fire hose should be partially charged before deploying it from the fire stationD.The nozzleman should always hold the nozzle with one hand on top，to prevent kickback
A fire starts on your vessel while refueling. You should FIRST ______.A.stop the ventilationB.sound the general alarmC.determine the source of the fireD.attempt to extinguish the fire
Fire may be spread by which means?A.Conduction of heat to adjacent surfacesB.Direct radiationC.ConvectionD.All of the above
Fire hose couplings ______.A.are made of bronze brass, or soft alloy metalsB.should be painted red in order to identify hose lengthsC.are specially hardened to prevent crushingD.should be greased frequently
单选题When fighting a spreading fire resulting from a broken fuel line, you should FIRST （）.Alook for a CO2 extinguisherBuse a soda acid extinguisherCshut off the fuel supplyDsmother the fire with rags
单选题In the event of a fire, the doors to a stair tower must be closed to prevent the spread of fire by （）.AconvectionBconductionCradiationDventilation
单选题As soon as you hear the fire and emergency signal, you should ensure that the （）.Aring buoys are thrown overboardBengines are stoppedCfire pumps are startedDlife preservers have been issued to everyone
单选题If there’s a fire aboard your vessel, you should first（）.Anotify the competent authoritiesBsound the alarmChave passengers put on life preserversDcut off air supply to the fire
单选题Which firefighting method is an example of an indirect attack on a fire?（）.ABouncing a straight stream of water off the overhead to create spray effectBSpraying foam on a bulkhead and letting it flow down and over a pool of burning oilCFlooding a paint locker with CO2 and sealing the compartmentDCooling adjacent bulkheads with water to prevent the spread of the fire by conduction
单选题Before attempting to put out a class “C” fire involving an electric-driven centrifugal pump, you should FIRST （）.Ainsulate your shoesBground the fire hoseCsecure its power supplyDstart the fire pump
单选题Ventilation systems connected to a compartment in which a fire is burning are normally closed to prevent the rapid spread of the fire by（）.AconvectionBconductionCradiationDspontaneous combustion
单选题To extinguish an electrical fire, you should use （）.Amechanical foamBchemical foamCcarbon dioxideDsoda acid
单选题A fire starts on your vessel while refueling. You should FIRST（）.Astop the ventilationBsound the general alarmCdetermine the source of the fireDattempt to extinguish the fire
单选题If a fire occurs in the boiler room as a result of a leaking fuel line, you should FIRST （）.Anotify the engineer on watchBisolate and secure the pipingCthrow sand on the fireDextinguish the fire using a combination nozzle with applicator
单选题A fire starts on you vessel while refueling. You should first（）.Astop the ventilationBsound the general alarmCdetermine the source of the fireDattempt to extinguish the fire
单选题To lubricate the swivel or remove corrosion from a fire hose coupling，you should use（）.AglycerineBgraphiteCkeroseneDfresh water and soap
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To prevent the spread of fire by convection you should （）.Aremove combustibiles from direct exposureBcool the bulkhead around the fireCclose all openings to the areaDshut off electrical power
单选题Fire dampers prevent the spread of fire by（）.AconvectionBconductionCradiationDdirect contact
单选题When approaching a fire from win ward, you should shield firefighters from the fire by using（）Alow-velocity fogBhigh-velocity fogCa straight stream of waterDfoam spray
单选题When possible，what should be the FIRST step in combating a fire on deck resulting from a cargo overflow or a leaking cargo line?（）ABlanket the cargo spill with foamBPrevent the spread of fire with a foam damCApply CO2 on burning fuel at its sourceDShut off the transfer of cargo