单选题Fire dampers prevent the fire spreading through the process of （）.AconvectionBconductionCradiationDdirect contact
单选题
Fire dampers prevent the fire spreading through the process of （）.
A
convection
B
conduction
C
radiation
D
direct contact
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相关考题：
Fire dampers prevent the fire spreading through the process ofA.convectionB.conductionC.radiationD.direct contact
The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE?A.Fusible links must be replaced if a damper is activatedB.Fusible links are tested by applying a source of heat to themC.Fusible links must be replaced at every inspection for certificationD.A fusible link will automatically open after a fire is extinguished and reset the damper
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 galley grease fire on the stove may be extinguished using______．A.waterB.foamC.the range hood extinguishing systemD.fire dampers
Convection spreads a fire by ______.A.heated gases flowing through ventilation systemsB.the transfer of heat across an unobstructed spaceC.burning liquids flowing into another spaceD.transmitting the heat of a fire through the ship’s metal
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
单选题The spreading of fire as a result of heat being carried through a vessels ventilation system, is an example of heat transfer by （）.AconductionBconvectionCradiationDwindage
单选题The ventilation system of your ship has fire dampers restrained by fusible links. Which statement is TRUE?（）AA fusible link will automatically open after a fire is extinguished and reset the damperBFusible links must be replaced at every inspection for certificationCFusible links are tested by applying a source of heat to themDFusible links must be replaced if a damper is activated
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The most likely place for a fire to start through the process of spontaneous combustion is in （）.Aan electrical switchboardBthe pressure tanksCthe fuel oil tanksDthe oily rag bin
单选题Fusible-link fire dampers are operated by（）.Aa break-glass and pull-cable systemBelectrical controls on the bridgeCa mechanical arm outside the vent ductDthe heat of a fire melting the link
单选题Fighting a fire in the galley poses the additional threat of（）.Acontaminating food with extinguishing agentBspreading through the engineering spaceCloss of stabilityDa grease fire in the ventilation system
单选题A fire in the galley ALWAYS poses the additional threat of（）.Acontaminating food with extinguishing agentBspreading through the engineering spaceCcausing loss of stabilityDa grease fire in the ventilation system
单选题Fusible-link fire dampers are operated by（）.A8the heat of a fire melting the linkBa break-glass and pull-cable systemCelectrical controls on the bridgeDa mechanical arm outside the vent duct
单选题Convection spreads a fire by（）.Aheated gases flowing through ventilation syetemBthe transfer of heat across an unobstructed spaceCburning liquids flowing into another spaceDtransmitting the heat of a fire through the ships metal
单选题Convection spreads a fire as a result of （）.Atransmitting the heat of a fire through the ships metalBburning liquids flowing into another spaceCheated gases flowing through ventilation systemsDthe transfer of heat across an unobstructed space
单选题A galley grease fire on the stove may be extinguished using（）.AwaterBfoamCthe range hood extinguishing systemDfire dampers
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单选题Automatic fire dampers in ventilation systems are operated by use of（）.Aremotely operated valvesBfusible linksCC02 system pressure switchesDheat or smoke detectors
单选题Automatic fire dampers in ventilation systems are operated by a（）.Aremote operated valveBfusible linkCCO2 system pressure switchDheat or smoke detector
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The blocking or absence of fire dampers can cause（）.Athe accumulation of explosive gasesBfaster cooling of the fireCthe fire to spread through the ventilation systemDfixed foam systems to be ineffective
单选题A fire is considered "under control" when （）.Aall hands are at their fire stationsBall fire-fighting equipment is at the sceneCthe fixed systems are activatedDthe fire is contained and no longer spreading
单选题Fire dampers prevent the spread of fire by（）.AconvectionBconductionCradiationDdirect contact
单选题Radiation can spread a fire by （）.Atransmitting the heat of a fire through the ship s metalBburning liquids flowing into another spaceCheated gases flowing through ventilation systemsDthe transfer of heat across an unobstructed space
单选题Blocking open or removing fire dampers can cause（）.Afixed foam systems to be ineffectiveBfaster cooling of the fireCthe accumulation of explosive gasesDthe fire to spread through the ventilation system