A tug may be in danger of tripping when ______.A.towed sideways by an overwhelming force on the towlineB.her tow moves parallel to and forward on either side of the tugC.the tow is no longer directly astern but moves up on her quarterD.All of the above
A tug may be in danger of tripping when ______.
A.towed sideways by an overwhelming force on the towline
B.her tow moves parallel to and forward on either side of the tug
C.the tow is no longer directly astern but moves up on her quarter
D.All of the above
相关考题：
What is the danger associated with stopping a running job by using the STOP_JOB procedure?() A. The job will need to be reenabled before it will execute again.B. The job may hold locks on objects referenced within it.C.All jobs within the job group will also be stopped.D. The job may leave data in an inconsistent state.E. There is no danger in using the STOP_JOB procedure.
A tug is to assist in docking an oceangoing vessel on a hawser. The greatest danger to the tug is ______.A.from the ship's propeller when making up aftB.from being overrun if making up forwardC.hull damage while alongside passing a hawserD.getting in a tripping position
With a large tow astern，there is immediate danger to the tug in the event of the ______．A.Tug losing powerB.Tow line partingC.Bridle twistingD.Tow broaching
The lifeboat releasing gear lever should be marked with the words ______．A.DANGER，DO NOT TOUCHB.DANGER，BOAT MAY DROPC.DANGER，LEVER RELEASES BOATD.DANGER，LEVER DROPS BOAT
For a floating vessel, the center of buoyancy and the metacenter are in the line of action of the buoyant force ______.A.only when there is positive stabilityB.only when there is negative stabilityC.only when there is neutral stabilityD.at all times
The use of wrong medicine may present a hazard to the patients.A:protection B:indicationC:immunity D:danger
According to the passage，mathematicians present a danger to scientists for which of the following reasons？( ) A.Mathematicians may provide theories that are incompatible with those already developed by scientists B.Mathematicians may define situation in a way that is incomprehensible to scientists C.Mathematicians may convince scientists that theoretical assumptions are facts D.Scientists may begin to provide arguments that are convincing but imprecise
单选题A tropical cyclone has recurved and entered temperate latitudes. In the Northern Hemisphere when a large high pressure system lies north of the storm，what situation may occur?（）AThe low may suddenly deepen，and the cyclone intensify and pick up speedBThe left semicircle may become the dangerous semicircleCThe low and the high may merge and cancel out the weather characteristics of eachDThe high may force the cyclone to reverse its track
单选题Although manual plotting for CPA works well，the workload can become overwhelming when confronted with（）.Aone targetBtwo targetsCthree targetsDa large number of targets
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 center of buoyancy and the metacenter are in the line of action of the buoyant force（）.Aonly when there is positive stabilityBonly when there is negative stabilityConly when there is neutral stabilityDat all times
单选题The platform that supports the derrickman when tripping pipe is called the（）.ATexas deckBwater tableCstabbing boardDmonkey board
单选题The catenary（）.Aacts as a reserve length of towing hawser when the tug applies more power，and it dampens the surge effect of the towBgives an approximation of the amount of strain on the towing hawserCis the dip in the towing hawser between the tug and the towDAll of the above
单选题How do the height and location of a tug’s towing bitts relate to the danger of tripping?（）AThe further forward and closer to amidships the more readily the tug will tripBPlacement further aft permits more effective pulling，better steering and eliminates the danger of trippingCInstalling the bitts down low lowers the center of gravityDThe height and position of towing bitts has no significance
单选题A tug is to assist in docking an oceangoing vessel on a hawser. The greatest danger to the tug is （）.Afrom the ship's propeller when making up aftBfrom being overrun if making up forwardChull damage while alongside passing a hawserDgetting in a tripping position
单选题Which statement is TRUE concerning the danger signal?（）.AWhen any vessel fails to understand the intentions of an approaching vessel she must sound the danger signalBOnly the stand-on vessel can sound the danger signalCDistress signals may be used in place of the danger signalDThe danger signal consists of 4 or more short blasts of the whistle
单选题Which statement is TRUE concerning hawser towing? （）AThe catenary in a hawser should be sufficient so that the hawser just touches the bottomBThe hawser is of sufficient length for towing when taut between tug and towCIncreasing speed usually increases the catenary in the hawserDShortening the tow hawser generally decreases the maneuverability of the tug
单选题What is the role the T5 plays?AThrottles up and down to counteract the buffeting from air molecules.BFeels the subtle variations in Earth’s tug.CHelps accelerometers surive the launchDProvides powerful force to counteract the drag on Goce.
单选题A towing vessel is tripped when（）.Ait is overtaken by the towBit is pulled sideways by the towCthe weight of the towing hawser causes loss of maneuverabilityDthe propeller is fouled by the towing hawser
单选题When connecting the tow bridle to a tug, the end of the bridle is passed with a（）.Aheaving lineBshot lineChigh lineDmessenger line
单选题To reduce the amount of catenary you may（）.Ashorten the hawser or increase the tug's speedBlengthen the hawser or reduce the tug's speedCplace your tug in ironsDmake a sharp turn
单选题The force acting on a single cargo runner which is vertically lifting or lowering a load is greatest when（）.Adecelerating when lowering the loadBdecelerating when raising the loadClowering the load at constant speedDraising the load at constant speed
单选题A tug may be in danger of tripping when（）.Atowed sideways by an overwhelming force on the towlineBher tow moves parallel to and forward on either side of the tugCthe tow is no longer directly astern but moves up on her quarterDAll of the above
单选题For a floating vessel, the center of buoyancy and the metacenter are in the line of action of the buoyant force（）.Aonly when there is positive stabilityBonly when there is negative stabilityConly when there is neutral stabilityDat all times
单选题What is the danger associated with stopping a running job by using the STOP_JOB procedure？（）A The job will need to be reenabled before it will execute again.B The job may hold locks on objects referenced within it.C All jobs within the job group will also be stopped.D The job may leave data in an inconsistent state.E There is no danger in using the STOP_JOB procedure.
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When a vessel has positive stability，the distance between the line of force through B and the line of force through G is called the（）.Ametacentric heightBrighting armCrighting momentDmetacentric radius