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

题目

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


相似考题
参考答案和解析
正确答案:D
更多“A tug may be in danger of tripping when ______.A.towed sideways by an overwhelming force o ”相关问题
  • 第1题:

    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 stability

    B.only when there is negative stability

    C.only when there is neutral stability

    D.at all times


    正确答案:D
    对于漂浮的船舶,浮心和横稳心一直都在浮力的作用线上。

  • 第2题:


    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

    答案:C
    解析:

  • 第3题:

    单选题
    Although manual plotting for CPA works well,the workload can become overwhelming when confronted with().
    A

    one target

    B

    two targets

    C

    three targets

    D

    a large number of targets


    正确答案: D
    解析: 暂无解析

  • 第4题:

    单选题
    The center of buoyancy and the metacenter are in the line of action of the buoyant force().
    A

    only when there is positive stability

    B

    only when there is negative stability

    C

    only when there is neutral stability

    D

    at all times


    正确答案: C
    解析: 暂无解析

  • 第5题:

    单选题
    The catenary().
    A

    acts as a reserve length of towing hawser when the tug applies more power,and it dampens the surge effect of the tow

    B

    gives an approximation of the amount of strain on the towing hawser

    C

    is the dip in the towing hawser between the tug and the tow

    D

    All of the above


    正确答案: A
    解析: 暂无解析

  • 第6题:

    单选题
    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 aft

    B

    from being overrun if making up forward

    C

    hull damage while alongside passing a hawser

    D

    getting in a tripping position


    正确答案: D
    解析: 暂无解析

  • 第7题:

    单选题
    Which statement is TRUE concerning hawser towing? ()
    A

    The catenary in a hawser should be sufficient so that the hawser just touches the bottom

    B

    The hawser is of sufficient length for towing when taut between tug and tow

    C

    Increasing speed usually increases the catenary in the hawser

    D

    Shortening the tow hawser generally decreases the maneuverability of the tug


    正确答案: C
    解析: 暂无解析

  • 第8题:

    单选题
    A towing vessel is tripped when().
    A

    it is overtaken by the tow

    B

    it is pulled sideways by the tow

    C

    the weight of the towing hawser causes loss of maneuverability

    D

    the propeller is fouled by the towing hawser


    正确答案: A
    解析: 暂无解析

  • 第9题:

    单选题
    To reduce the amount of catenary you may().
    A

    shorten the hawser or increase the tug's speed

    B

    lengthen the hawser or reduce the tug's speed

    C

    place your tug in irons

    D

    make a sharp turn


    正确答案: D
    解析: 暂无解析

  • 第10题:

    单选题
    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


    正确答案: D
    解析: 暂无解析

  • 第11题:

    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.


    正确答案: D
    解析: 暂无解析

  • 第12题:

    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().
    A

    metacentric height

    B

    righting arm

    C

    righting moment

    D

    metacentric radius


    正确答案: C
    解析: 暂无解析

  • 第13题:

    The use of wrong medicine may present a hazard to the patients.

    A:protection
    B:indication
    C:immunity
    D:danger

    答案:D
    解析:
    本题考查的是对名词的认知。这句话的意思是:误用药物可能对病人造成危险。hazard的意思是危险,例如:He had put his own life in hazard.他是在拿自己的生命来冒险。选项A protection保护;选项B indication指示;选项C immunity免疫力;选项D danger 危险。hazard和danger意思最接近,所以选D。

  • 第14题:

    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?()
    A

    The low may suddenly deepen,and the cyclone intensify and pick up speed

    B

    The left semicircle may become the dangerous semicircle

    C

    The low and the high may merge and cancel out the weather characteristics of each

    D

    The high may force the cyclone to reverse its track


    正确答案: C
    解析: 暂无解析

  • 第15题:

    单选题
    The Rules state that vessels may depart from the Rules when().
    A

    there are other vessels in the vicinity

    B

    operating in a traffic separation scheme

    C

    engaged in a situation involving more than two vessels

    D

    necessary to avoid immediate danger


    正确答案: D
    解析: 暂无解析

  • 第16题:

    单选题
    The platform that supports the derrickman when tripping pipe is called the().
    A

    Texas deck

    B

    water table

    C

    stabbing board

    D

    monkey board


    正确答案: D
    解析: 暂无解析

  • 第17题:

    单选题
    How do the height and location of a tug’s towing bitts relate to the danger of tripping?()
    A

    The further forward and closer to amidships the more readily the tug will trip

    B

    Placement further aft permits more effective pulling,better steering and eliminates the danger of tripping

    C

    Installing the bitts down low lowers the center of gravity

    D

    The height and position of towing bitts has no significance


    正确答案: A
    解析: 暂无解析

  • 第18题:

    单选题
    Which statement is TRUE concerning the danger signal?().
    A

    When any vessel fails to understand the intentions of an approaching vessel she must sound the danger signal

    B

    Only the stand-on vessel can sound the danger signal

    C

    Distress signals may be used in place of the danger signal

    D

    The danger signal consists of 4 or more short blasts of the whistle


    正确答案: A
    解析: 暂无解析

  • 第19题:

    单选题
    What is the role the T5 plays?
    A

    Throttles up and down to counteract the buffeting from air molecules.

    B

    Feels the subtle variations in Earth’s tug.

    C

    Helps accelerometers surive the launch

    D

    Provides powerful force to counteract the drag on Goce.


    正确答案: C
    解析:
    题目问的是:T5扮演什么角色?倒数第14段提到“British engine is designed to throttle up and down to counteract this disturbance.”可知通过上下节流来抵消干扰,A项与原文一致。故选A。

  • 第20题:

    单选题
    When connecting the tow bridle to a tug, the end of the bridle is passed with a().
    A

    heaving line

    B

    shot line

    C

    high line

    D

    messenger line


    正确答案: D
    解析: 暂无解析

  • 第21题:

    单选题
    The force acting on a single cargo runner which is vertically lifting or lowering a load is greatest when().
    A

    decelerating when lowering the load

    B

    decelerating when raising the load

    C

    lowering the load at constant speed

    D

    raising the load at constant speed


    正确答案: D
    解析: 暂无解析

  • 第22题:

    单选题
    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 stability

    B

    only when there is negative stability

    C

    only when there is neutral stability

    D

    at all times


    正确答案: D
    解析: 暂无解析

  • 第23题:

    单选题
    The rules state that vessels may depart from the requirements of the Rules when().
    A

    there are no other vessels around

    B

    operating in a narrow channel

    C

    the Master enters it in the ship's log

    D

    necessary to avoid immediate danger


    正确答案: C
    解析: 暂无解析