There is a ______ when one or more vessels are towing or pushing another vessel or vessels，provided that they are all involved in commercial activities and not in a salvage operation．A.private safetyB.private maritime adventureC.common safetyD.common maritime adventure
There is a ______ when one or more vessels are towing or pushing another vessel or vessels，provided that they are all involved in commercial activities and not in a salvage operation．
A.private safety
B.private maritime adventure
C.common safety
D.common maritime adventure
相关考题：
A head on situation shall be deemed to exist at night when a power-driven vessel sees another power-driven vessel ahead and ______.A.one sidelight and the masthead light are visibleB.the vessels will pass closer than half a mileC.both vessels sound one prolonged blastD.both sidelights and masthead light(s) are visible
A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when ______.A.directly astern and pushing the towB.towing on a hawserC.towing alongside and parallel to the vessel it is towingD.towing on the hip
Fire protection regulations for towing vessels require that drills be conducted on board the vessel as if there were an actual emergency．Drills include all of the following，EXCEPT ______．A.testing all alarm and detection systemsB.breaking out and using the vessel's emergency equipmentC.participation by selected crew membersD.one person putting on protective clothing，if the vessel is so equipped
A METHOD OF TOWING VESSELS THROUGH POLAR ICE BY MEANS OF ICEBREAKING TUGS WITH A SPECIAL STERN NOTCH SUITED TO RECEIVE AND HOLD THE BOW OF THE VESSEL TO BE TOWED defines ______.A.Towing operationsB.Rigid coupled towingC.Close coupled towingD.Hard coupled towing
A vessel brought alongside should be fended off the towing vessel by ______.A.crew members using their armsB.crew members using the strong muscles of their legsC.fendersD.No fending is necessary due to the rugged construction of most towing vessels
In which situation do the Rules require both vessels to change course ?______.A.Two power-driven vessels meeting head-onB.Two power-driven vessels crossing when it is apparent to the stand-on vessel that the give-way vessel is not taking appropriate actionC.Two sailing vessels crossing with the wind on the same sideD.All of the above
In which case would an overtaking vessel sound a whistle signal of two prolonged followed by one short blast? ______.A.When overtaking in restricted visibilityB.When overtaking in a narrow channelC.When overtaking on open watersD.When no other vessels are in the immediate area
单选题A towing vessel pushing a barge ahead and rigidly connected in a composite unit shall show the lights of（）.Aa vessel towing by pushing aheadBa power-driven vessel，not towingCa barge being pushed aheadDeither answer A or answer B
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The steering and sailing rules for vessels in restricted visibility apply to vessels（）.Ain sight of one another in fogBnavigating in or near an area of restricted visibilityConly if they are showing special purpose lightsDonly if they have operational radar
单选题Which vessel is the stand-on vessel when two vessels crossing in fog are NOT in sight of one another（）.AThe vessel which has the other on her own starboard sideBThe vessel which has the other on her own port sideCThe one which hears the other's fog signal firstDNeither vessel is the stand-on vessel
单选题A stand-on vessel in a crossing situation is allowed to take action when （）.Aon a collision courseBthe vessels will pass within one mileCit becomes apparent to her that the give-way vessel is not taking appropriate actionDthe relative speed of the vessels indicates collision in less than six minutes
单选题Which statement is TRUE in an overtaking situation（）.AOne vessel is approaching another vessel from more than 20° abaft the beamBIt is the duty of the vessel being overtaken to get out of the wayCAny later change of bearing between the two vessels shall not make the overtaking vessel a crossing vesselDAll of the above
单选题Vessels shall be deemed to be in sight of one another only when one（）from the other.Acan be observed visuallyBcan be observed by radarCcan be located on the radarDcan be heard
单选题A vessel brought alongside should be fended off the towing vessel by（）.Acrew members using their armsBcrew members using the strong muscles of their legsCfendersDNo fending is necessary due to the rugged construction of most towing vessels
单选题Power-driven vessels must keep out of the way of sailing vessels except（）.Ain a crossing situationBwhen they are making more speed than the power-driven vesselCwhen the sailing vessel is overtakingDon the Inland Waters of the United States
单选题If the situation arose where it became necessary to tow a disabled vessel，which statement is TRUE concerning the towing line?（）.AThe towing line between the two vessels should be clear of the waterBThe towing line should be taut at all times between the vesselsCThere should be a catenary so the line dips into the waterDNone of the above
单选题Which one of two crossing power-driven vessels has the right of way in a fog（）.ABoth vesselsBNeither vesselCThe vessel on portsideDThe vessel on starboard side
单选题A METHOD OF TOWING VESSELS THROUGH POLAR ICE BY MEANS OF ICEBREAKING TUGS WITH A SPECIAL STERN NOTCH SUITED TO RECEIVE AND HOLD THE BOW OF THE VESSEL TO BE TOWED defines（）.ATowing operationsBRigid coupled towingCClose coupled towingDHard coupled towing
单选题When two vessels are in sight of one another and NOT in or near an area of restricted visibility，any of the following signals may be given EXCEPT（）.Aa light signal of at least five short and rapid flashesBone prolonged，one short，one prolonged，and one short whistle blastsCfour short whistle blastsDtwo short whistle blasts
单选题A vessel the passage of which is not to be impeded（）to comply with this Rule when the two vessels are approaching one another so as to involve risk of collision.Aremains fully obligedBhas no obligationCis not necessarilyDis exempted
单选题The Rules state that risk of collision shall be deemed to exist（）．AWhenever two vessels approach from opposite directionsBIf the bearing of an approaching vessel does not appreciably changeCWhenever a vessel crosses ahead of the intended track of another vesselDIf one vessel approaches another so as to be overtaking
单选题You intend to overtake a vessel in a narrow channel.As you approach the other vessel’s stern（）Ayou will gain speedBboth vessels will gain speedCthe vessels will drift togetherDthe vessels will drift apart
单选题The use of the danger signal（）.Areplaces directional signalsBmakes the other vessel the stand-on vesselCindicates doubt as to another vessels actionsDis the same as a MAYDAY signal
单选题A head on situation shall be deemed to exist at night when a power-driven vessel sees another power-driven vessel ahead and （）.Aone sidelight and the masthead light are visibleBthe vessels will pass closer than half a mileCboth vessels sound one prolonged blastDboth sidelights and masthead light(s) are visible
单选题When one of two vessels（）is required to keep out of the way the other must keep her course and speed.AIn sight of anotherBSights the anotherCNot in sight of the otherDIn sight of one another
单选题If you hear the firing of a gun at one minute intervals from another vessel，this indicates that（）.Athe gun is being used to sound passing signalsBthe vessel is in distressCall vessels are to clear the areaDall is clear and it is safe to pass