单选题All fog signals shall be sounded every two minutes with the exception of a vessel（）.Aunderway or making wayBunder sail or under towCanchored or agroundDnot under command or restricted in her ability to maneuver
单选题
All fog signals shall be sounded every two minutes with the exception of a vessel（）.
A
underway or making way
B
under sail or under tow
C
anchored or aground
D
not under command or restricted in her ability to maneuver
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______ 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
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A vessel on the high seas that is not under command shall display which of the following day signals? ______A.Two black ballsB.Three black ballsC.Two red ballsD.Three red balls
All the crewmembers shall be at the station as required by the muster list when in firefighting drill______minutes after hearing the alarm，and the duty engineer shall be able to make the fire pumps available with______minutes．A.2/5B.2/3C.3/2D.2/2
Concerning the identification signal for a pilot vessel, in fog, which statement is TRUE?___.A.When at anchor, the pilot vessel is only required to sound anchor signalsB.The identification signal must be sounded any time the pilot vessel is underwayC.The pilot vessel may only sound the identity signal when making wayD.All of the above
If practical, when shall a manned vessel being towed sound her fog signal?______.A.Immediately before the towing vessel sounds hersB.Immediately after the towing vessel sounds hers.C.As close to the mid-cycle of the towing vessel’s signals as possibleD.At any time as long as the interval is correct
单选题All engines in lifeboats and rescue boats shall be run for a total period of not less than（）in weekly inspections.A2 minutesB3 minutesC4 minutesD5 Minutes
单选题Every vessel shall（）maintain a proper look-out by sight and hearing as well as by all available means appropriate in prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision.Ain fogBat nightCin narrow fairwayDat all times
单选题When vessel enters thick fog, she should sound（）every two minutes in accordance with the rules.Aone short blastBone prolonged blastCtwo short blasts
单选题When your vessel enters thick fog，she should sound（）every two minutes in accordance with these Rules.Aone short blastBone prolonged blastCtwo short blastsDthree short blasts
单选题What is the use of the books of Admiralty List of Lights and Fog Signals? Their use is to （）.AMention signal stations and ice，storm，traffic and port signalsBGive the international numbers of lightsCGive the correction of the lights and fog signalsDGive the information on the lights and fog signals
单选题Mariners are warned that fog signals should（）be relied upon implicity.AalwaysBneverCsonetimesDsometime
单选题_____AAbout every four minutes.BAbout every five minutes.CAbout every six minutes.DAbout every seven minutes.
单选题A Navtex station in each NAVAREA is usually allowed to have（）for transmission.A10 minutes every 4 hoursBhalf an hour every other hourCirregular period of timeD5 minutes every two hours
单选题Full details of all lights and fog signals are shown on（）.Alarge scale chartBsmall scale chartCocean chartDrouting chart
单选题At least（）two-way VHF radiotelephone apparatus shall be provided on every cargo ship of 300 tons gross tonnage and upwards but less than 500 tons gross tonnage.AoneBtwoCthreeDfour
单选题All of the following are distress signals EXCEPT（）.Athe continuous sounding of any fog signal apparatusBgiving five or more short and rapid blasts of the whistleCfiring a gun at intervals of about a minuteDa barrel with burning oil in it，on deck
单选题While underway，in fog，you hear a whistle signal of one prolonged blast followed by two short blasts. This signal is sounded by a vessel（）.Anot under commandBbeing towedCon pilotage dutyDaground
单选题（）gives listings of all lighthouses，lightships，lit floating marks（over 8m in height），fog signals and lights of navigational significance.AOcean Passages for the WorldBAdmiralty List of Radio SignalsCIALA Maritime Buoyage SystemDAdmiralty List of Lights and Fog Signals
单选题How should signal flares be used after you have abandoned ship and are adrift in a liferaft?（）.AImmediately use all the signals at onceBUse all the signals during the first nightCEmploy a signal every hour after abandoning ship until they are goneDUse them only when you are aware of a ship or plane in the area
单选题At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.A200B300C400D800
单选题A call between any two ship stations on an intership working frequency shall have a maximum duration of（）.A2 minutesB3 minutesC4 minutesD5 minutes
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单选题Uncharted lights, fog signals and radar beacon transmissions may be（）near the station.AencounteredBmetCcontactedDseen
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