Generally, the first action in extinguishing an LFG fire caused by escaping gas is to ______.A.sweep flames away with water sprayB.shut off the leakC.use a chemical foam fire extinguisherD.call the local fire department
Generally, the first action in extinguishing an LFG fire caused by escaping gas is to ______.
A.sweep flames away with water spray
B.shut off the leak
C.use a chemical foam fire extinguisher
D.call the local fire department
相关考题：
Halogenated hydrocarbon， Halon in short form，is used on board ship as ________ ．A.fire-extinguishing mediumB.a standard fire testC.a non-combustible materialD.a fire main
The fire extinguishing action of CO 2 comes mostly from ______.A.breaking the fire chemical chain reactionB.smotheringC.coolingD.isolating the heat from the fuel
A fire in the galley ALWAYS poses the additional threat of ______.A.contaminating food with extinguishing agentB.spreading through the engineering spaceC.causing loss of stabilityD.a grease fire in the ventilation system
A fire of escaping liquefied flammable gas is best extinguished by ______.A.cooling the gas below the ignition pointB.cutting off the supply of oxygenC.stopping the flow of gasD.interrupting the chain reaction
A galley grease fire on the stove may be extinguished using______．A.waterB.foamC.the range hood extinguishing systemD.fire dampers
Fighting a fire in the galley poses the additional threat of ______.A.contaminating food with extinguishing agentB.spreading through the engineering spaceC.loss of stabilityD.a grease fire in the ventilation system
Deep-fat cooking equipment shall be fitted with the following:（）A、An automatic or manual fixed extinguishing system tested to an appropriate standardacceptable to the OrganizationB、Controls for manual operation of the fire-extinguishing system which are clearlylabeled for ready use by the crewC、Arrangements for automatically shutting off the electrical power upon activation of thefire-extinguishing systemD、an alarm for indicating operation of the fire-extinguishing system in the galley wherethe equipment is installed
单选题A fuel line breaks, sprays fuel on the hot exhaust manifold, and catches fire. Your first action should be to（）.ABatten down the engine roomBstart the fire pumpCapply carbon dioxide to the fireDshut off the fuel supply
单选题A fire of escaping liquefied flammable gas is best extinguished by（）.Acooling the gas below the ignition pointBcutting off the supply of oxygenCstopping the flow of gasDinterrupting the chain reaction
单选题A class B fire is most successfully fought by（）.Apreventing oxygen from reaching the burning materialBcooling the burning material below its ignition temperatureCusing the extinguishing agent to make the burning material fire-resistantDusing the extinguishing agent to absorb the heat
单选题A fire in the galley always poses the additional threat of（）.Acontaminating food with extinguishing agentBshutting all sources of air into the compartmentCclosing the sea chestDa grease fire in the ventilation system
单选题Flames from small leaks of LFG may be extinguished by（）.Autilizing carbon dioxide or dry chemical fire extinguishersButilizing soda and acid fire extinguishersCblowing the flames outDletting it burn itself out
单选题The basic training in fire prevention and fire fighting should include the theoretical elements which should cover （）.Athe three elements of fire and explosionBlower and upper flammable limitsCclassification of flies and applicable extinguishing agentsDAll of the above
单选题What is the passage about?AThe Great Fire of London.BWho was the first to discover the fire?CWhat Pepys was doing during the fire.DThe losses caused by the fire.
单选题What normally helps in detecting escaping gas? （）ARunning hand along pipeBRed flameCOdorDIncrease the line pressure
单选题The FIRST course of action in fighting a fire in a cargo or fuel oil tank is to （）.Asecure all openings to the tankBdischarge an initial charge of CO2 with a hand portable extinguisherCdirect a fire hose into the tank and energize the fire mainDspray the tank boundaries with a fire hose to promote cooling
单选题Generally, the first action in extinguishing an LFG fire caused by escaping gas is to（）.Asweep flames away with water sprayBshut off the leakCuse a chemical foam fire extinguisherDcall t e local fire department
单选题The best method of extinguishing a class A fire is to（）.Aremove oxygen from the areaBcool fuel below ignition temperatureCsmother with CO2Dsmother fire with foam
多选题Deep-fat cooking equipment shall be fitted with the following:（）AAn automatic or manual fixed extinguishing system tested to an appropriate standardacceptable to the OrganizationBControls for manual operation of the fire-extinguishing system which are clearlylabeled for ready use by the crewCArrangements for automatically shutting off the electrical power upon activation of thefire-extinguishing systemDan alarm for indicating operation of the fire-extinguishing system in the galley wherethe equipment is installed
单选题What is the most important characteristic of the extinguishing agent in fighting a class C fire?（）AWeightBTemperatureCElectrical nonconductivityDCost
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The fire extinguishing action of CO2 comes mostly from （）.Abreaking the fire chemical chain reactionBsmotheringCcoolingDisolating the heat from the fuel
单选题The best method of extinguishing a class A fire is to （）.Aremove oxygen from the areaBsmother fire with foamCsmother fire with CO2Dcool fuel below ignition temperature
单选题The purpose of the deck seal in an inert gas system is to prevent（）.Aflammable vapors from entering machinery spaceBflue gas escaping to atmosphereCinert gas escaping to atmosphereDair entering inert gas system
单选题After extinguishing a paint locker fire using the fixed CO2 system，the next action is to have the space（）.Aopened and burned material removedBleft closed with vents off until all boundaries are coolCchecked for oxygen contentDdoused with water to prevent reflash
单选题Generally，the first action in extinguishing an LFG fire caused by escaping gas is to（）.Asweep flames away with water sprayBshut off the leakCuse a chemical foam fire extinguisherDcall the local fire department