单选题Fire detecting systems on merchant vessels may be arranged to sense （）.AsmokeBrate of temperature riseCionized particlesDall of the above
单选题
Fire detecting systems on merchant vessels may be arranged to sense （）.
A
smoke
B
rate of temperature rise
C
ionized particles
D
all of the above
参考解析
解析：
暂无解析
相关考题：
Because of the recent fire in the factory, all the stocks were destroyed. (), we cannot make shipment as arranged before.A、In the caseB、In this casesC、In this eventD、At this event
Which of the following statements concerning the lubrication of diesel propulsionengines used in vessels over 300 gross tons is most accurate? ( )A.Lubrication systems using engine driven lube oil pumps do not require any additionalindependent arrangement when such arrangements have been proven reliable.B.The use of engine driven pre-lube pumps is permitted on vessels with propulsionsystems developing less than 500 shaft horsepower.C.When forced lubrication is used for propulsion engines , one independently drivenstandby pumps is to be provided in addition to the necessary pumps for normaloperation.D.Lubrication systems where two oil coolers are fitted require a minimum of twotemperature control devices which may be actuated by similar sensors.
Oceangoing dry bulk cargo vessels over 1000 GT must have approved combination-type fire nozzles at all ______．A.Fire stations aboard the vessel，except for those in open deck areas weatherdeck and cargo hold fire stationsB.Interior fire stationsC.Engine room fire stationsD.All of the above
The most common type of davit found on merchant vessels today is the ______．A.RadialB.Sheath-screwC.GravityD.Quadrantal
A galley grease fire on the stove may be extinguished using______．A.waterB.foamC.the range hood extinguishing systemD.fire dampers
Most propellers on merchant vessels are constructed of______．A.manganese bronzeB.cast ironC.mild steelD.improved plow steel
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（）are increasingly used as main engine on merchant vessels, because they have a high Hp/Weight ratio.ASlow speed diesel enginesBMedium-speed diesel enginesCSteam enginesDGasoline engines
单选题The Rules state that vessels may depart from the Rules when（）.Athere are other vessels in the vicinityBoperating in a traffic separation schemeCengaged in a situation involving more than two vesselsDnecessary to avoid immediate danger
单选题A flashing red light displayed at a single lock means that the lock（）.Ais ready to use but vessels must stand clearBis ready to use and vessels may approachCcannot be made ready immediately and vessels shall stand clearDcannot be made ready immediately but vessels may approach
单选题Fire protection regulations for towing vessels require all crew members to know how to perform each of these tasks EXCEPT（）.Astart the mechanical ventilation system for the engine roomBoperate the fuel shut-off for the engine roomCoperate all fire extinguishing equipment aboard the vessel on board the vessel，including starting the fire pumpDAll of the above
单选题You are ordering ship’s stores. Which statement is TRUE?（）.AStores such as line，rags，mattresses，linens，etc. must be treated to be fire retardantBStores certified for use on uninspected vessels may be identified by the certification number used by Underwriter's LaboratoriesCA portable container of a flammable liquid used as fuel for portable auxiliary equipment must be stowed in a paint locker or at a designated open locationDAcetylene may be in a ship's storeroom in quantities not exceeding 6000 cubic feet
单选题Oceangoing dry bulk cargo vessels over 1000 GT must have approved combination-type fire nozzles at all（）.Afire stations aboard the vessel，except for those in open deck areas weatherdeck and cargo hold fire stationsBinterior fire stationsCengine room fire stationsDall of the above
单选题Fire protection regulations for towing vessels require training in all of the following，EXCEPT（）.Aputting on a fireman's outfit，if the vessel is so equippedBdonning a self-contained breathing apparatus，if the vessel is so equippedCactivating the general alarm and reporting inoperative alarm systems and fire-detection systemsDrefilling and servicing all expended fire extinguishing equipment
单选题Fire protection regulations for towing vessels allow all of these types of fuel piping，EXCEPT（）.AsteelBaluminum in an aluminum-hulled vesselCschedule 80 fire resistant plastic pipeDnickel-copper，copper-nickel or annealed copper
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Multiple fire pumps may be used for other purposes provided that one pump is（）.Aon line to the fire mainBkept available for use on the fire main at all timesCcapable of being connected to the fire mainDrated at or above 125 psi
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Upon receipt of a distress message，a merchant vessel is bound to proceed to the scene of the distress. Under which of the following cases would this NOT be true?（）AThe vessel would arrive at the distress scene more than 36 hours after the receipt of the initial distress messageBThere are vessels closer to the distress scene that are proceeding to assistCThe Master of the vessel in distress has requisitioned another vessel，and that vessel has accepted the requisitionDYou are on a tanker and the distress involves a major fire on board the other vessel
单选题The two vessels underway may collide with（）,if they don’t take immediate measures.Aone to anotherBone the otherCeach the otherDeach other
单选题Which of the following statements concerning the lubrication of diesel propulsion engines used in vessels over 300 gross tons is most accurate?（）ALubrication systems using engine driven lube oil pumps do not require any additional independent arrangement when such arrangements have been proven reliableBThe use of engine driven pre-lube pumps is permitted on vessels with propulsion systems developing less than 500 shaft horsepowerCWhen forced lubrication is used for propulsion engines, one independently driven stand-by pumps is to be provided in addition to the necessary pumps for normal operationDLubrication systems where two oil coolers are fitted require a minimum of two temperature control devices which may be actuated by similar sensors
单选题The rules state that vessels may depart from the requirements of the Rules when（）.Athere are no other vessels aroundBoperating in a narrow channelCthe Master enters it in the ship's logDnecessary to avoid immediate danger
单选题Cargo vessels being navigated，and fitted with emergency lighting and power systems，shall have their emergency systems tested at least once（）.Aa monthBin each weekCin every 6 monthsDin every 12 months
单选题Several merchant ships are arriving at the scene of a distress incident. One of the them must assume the duties of the Coordinator Surface Search (CSS). Which of the following statements is TRUE? （）ACSS duties are always assumed by passenger vessels，dry cargo vessels，or tankers in that order of precedenceBThe CSS must be established by mutual agreement between the ships concernedCA tank vessel should never be assigned CSS duties unless only tank vessels are presentDThe first vessel to arrive at the distress incident is designated as the CSS
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
单选题（）is main emergency fire system in all merchant ships.ACO2 systemBFoam systemCDry power systemDWater supply system