单选题Lifeboat launching is operated at intervals of three months.（）A救生艇下水每隔三周进行一次。B救生艇下水每三个月进行一次。C救生艇下水每三年进行一。D救生艇下水三个月。
单选题
Lifeboat launching is operated at intervals of three months.（）
A
救生艇下水每隔三周进行一次。
B
救生艇下水每三个月进行一次。
C
救生艇下水每三年进行一。
D
救生艇下水三个月。
参考解析
解析：
暂无解析
相关考题：
The committee has been __________ my letters for three months. A. going onB. working onC. studying forD. sitting on
It was three years after the first satellite launching that a (spaceship) containing a man made a successful flight.选择能代替括号里的选项A、a space stationB、a space vehicleC、a space rocketD、a Spacelab
______ of the following statements is（are）correct regarding motor lifeboats on cargo vessels．① The motor of each lifeboat shall be operated in the ahead and astern position for a period of not more than 5 minutes once in each week；② The fuel tank of all motor-propelled lifeboats shall be emptied and the fuel changed at least once in every year．A.① onlyB.② onlyC.Both ① and ②D.Neither ① nor ②
In launching a lifeboat, when should the tricing pendants be released?______.A.Before the boat is lowered from the stowage positionB.As soon as the boat-fall blocks clear the davit headC.After the limit switch is activatedD.After all people have been embarked
Line throwing equipment should not be operated ______.A.during a rain stormB.in an explosive atmosphereC.near a lifeboat stationD.by other than licensed officers
Network Security is a continuous process. Which three phases apply to this process?（）A、ConfigureB、ImproveC、OperateD、MonitorE、SecureF、Troubleshooting
救生艇下水每隔三个月进行一次。（）A、Lifeboat launching is operated at intervals of three months.B、Lifeboat launching is operated at intervals for three months.C、Fire drill is carried out once a month.D、Don’t operate two or more hatch covers at the same time.
单选题In launching a lifeboat，when should the tricing pendants be released?（）.ABefore the boat is lowered from the stowage positionBAs soon as the boat-fall blocks clear the davit headCAfter the limit switch is activatedDAfter all people have been embarked
单选题In launching a covered lifeboat，what would safely lower the lifeboat from inside the lifeboat cabin?（）AFrapping lineBTricing lineCRottmer releaseDWinch remote control wire
单选题救生艇下水每隔三个月进行一次。（）ALifeboat launching is operated at intervals of three months.BLifeboat launching is operated at intervals for three months.CFire drill is carried out once a month.DDon’t operate two or more hatch covers at the same time.
单选题You are Master of a towing vessel engaged in towing three barges astern.The middle barge of the tow would be required to sound which of the following during restricted visibility （）.ANo fog signalBA prolonged blast at intervals never to exceed more than two minutesCA prolonged blast followed by two short blasts at intervals never to exceed more than two minutesDA prolonged blast followed by three short blasts at intervals never to exceed more than one minute
单选题Preventer bars are fitted on lifeboat releasing hooks to prevent（）.Athe falls from unhooking if the releasing gear is operated accidentally while the boat is being loweredBoperation of the release lever until the boat is waterborneCthe falls from rehooking after they have been releasedDaccidental unhooking when the falls become slack
单选题Distilled water from an evaporator may be discharged into a potable water tank （）.Athrough a detachable hose connectionBafter passing through an activated charcoal filterCafter chemical analysis shows it is fit for consumptionDthrough a solenoid operated three-way valve
单选题In accordance with guidelines contained in MSC.1/Circ.1206, which persons aren’t able to conduct service for lifeboat launching appliance and on-load release gear?（）AServicing agents who are part of the manufacturer’s parent companyBService agents who are certificated by manufacturerCShip’s crew are trained by the manufacturer and authorization statement is availableDExperienced shipyard workers
单选题When launching an open lifeboat by falls，the boathooks should be（）.Asecured forward and aft where readily availableBsecured amidships where they will not hinder the personnelCused for fending offDused for picking up survivors in the water
单选题Line throwing equipment should not be operated（）.Aduring a rain stormBin an explosive atmosphereCnear a lifeboat stationDby other than licensed officers
单选题When launching a lifeboat in the rough sea, the davit gears should be released（）.Abefore the boat is lowered from the stowed positionBas the boat fall blocks break clear of the davit headCbefore the boat is lowered from the embarkation levelDafter the boat is released into the water
单选题According to the regulations for lifeboat falls，which action must be taken with the falls no later than 5-year intervals?（）AProof testedBEnd-for-endedCRenewedDWeight tested
单选题After conducting an abandonment drill，the Master or person in charge of a ship shall log（）.Athe names of crew members who participated in the drillBthe length of time that each motor propelled lifeboat was operated in the drillCthe length of time the lifeboat was in the waterDthe time it took to lower the boat
单选题When a survival craft drill is held，the person in charge must insure that（）.Aall survival craft are lowered to the water，launched，and operated for thirty minutesBall davits used for launching liferafts are operatedCeach emergency position indicating radio beacon is tested for thirty minutesDthe helicopter pad landing lights are operating in a quick-flashing mode
单选题Which sequence is correct when launching a lifeboat stowed in gravity davits?（）ARelease gripes，turn on emergency disconnect switch，release frapping linesBRelease tricing pennants，turn on emergency disconnect switch，release frapping linesCOperate limit switches，release gripes，lift brakeDRelease gripes，lift brake，release tricing pennants
单选题The Master or person in charge on a ship shall insure that line throwing equipment is not operated（）.Aduring a rain stormBin an explosive atmosphereCnear a lifeboat stationDby other than senior rig personnel
单选题When abandoning ship，after launching the motor lifeboat you should（）.Aplot a course for the nearest landBtake a vote on which direction you should goCstay in the immediate areaDgo in one direction until fuel runs out
单选题What is required by regulations concerning the stowage of lifeboats on cargo vessels?（）AEach lifeboat must have a launching applianceBLaunching appliances must be of the gravity typeCThere may not be more than two launching appliances on the same deckDAll of the above