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prolonged blast（）A、短声B、短笛C、长笛D、长声

题目

prolonged blast（）

  • A、短声
  • B、短笛
  • C、长笛
  • D、长声
相似考题

1.You are on international waters during a heavy rainstorm and hear a vessel sounding a fog signal of one prolonged blast followed by two short blasts． Which of the following could it be？Ⅰ．A vessel laying submarine cable making way．Ⅱ．A pilot vessel on station at anchor．A.Ⅰ onlyB.Ⅱ onlyC.Either Ⅰ or ⅡD.Neither Ⅰ nor Ⅱ

2.A jack-up drilling unit elevated on the Outer Continental Shelf must have a fog horn that will sound ______.A.a 2-second blast every 20 secondsB.a 4-second blast every 20 secondsC.an 8-second blast every 30 secondsD.a 10-second blast every 30 seconds

3. 迟发延续反应（delayed prolonged response）

4.On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a ______.A.vessel being towedB.fishing vessel engaged in trawlingC.vessel at anchor warning you of her locationD.power-driven pilot vessel on station underway

更多“prolonged blast（）”相关问题

  • 第1题：

    Second Officer, give one （）(长声).

    • A、blast
    • B、short blast
    • C、prolonged blast
    • D、prolonged blasts

    正确答案:C

  • 第2题：

    单选题
    The duration of a prolonged blast of the whistle is（）.
    A

    2 to 4 seconds

    B

    4 to 6 seconds

    C

    6 to 8 seconds

    D

    8 to 10 seconds


    正确答案： A
    解析： 暂无解析

  • 第3题：

    单选题
    On the high seas，a fog signal consisting of one prolonged blast followed by four short blasts would indicate the presence of a（）.
    A

    vessel being towed

    B

    fishing vessel engaged in trawling

    C

    vessel at anchor warning you of her location

    D

    power-driven pilot vessel on station underway


    正确答案： A
    解析： 暂无解析

  • 第4题：

    单选题
    Your vessel is approaching a bend. You hear a prolonged blast from around the bend. You should （）.
    A

    back your engines

    B

    stop your engines and drift

    C

    answer with one prolonged blast

    D

    sound the danger signal


    正确答案： C
    解析： 暂无解析

  • 第5题：

    单选题
    You are underway in fog and you hear one prolonged blast followed by two short blasts.This is a vessel（）.
    A

    Towing

    B

    Engaged on pilotage duty

    C

    Aground in a fairway

    D

    Stopped and making no way through the water


    正确答案： C
    解析： 暂无解析

  • 第6题：

    单选题
    A tug is towing three manned barges in line in fog. The first vessel of the tow should sound （）.
    A

    no fog signal

    B

    one short blast

    C

    one prolonged and three short blasts

    D

    one prolonged，one short，and one prolonged blast


    正确答案： B
    解析： 暂无解析

  • 第7题：

    问答题
    相比使用BLAST套件搜索数据库，BLAST2工具在结果呈现上有什么优点？

    正确答案： BLAST2序列分析工具，它能进行两条序列的精确比对，同时给出两序列的图形化比对结果和文本形式的联配结果。
    解析： 暂无解析

  • 第8题：

    单选题
    You are approaching another vessel and will pass starboard to starboard without danger if no course changes are made.You should（）.
    A

    hold course and sound a two blast whistle signal

    B

    hold course and sound no whistle signal

    C

    change course to the right and sound one blast

    D

    hold course and sound two prolonged and two short blasts


    正确答案： D
    解析： 暂无解析

  • 第9题：

    单选题
    prolonged blast（）
    A

    短声

    B

    短笛

    C

    长笛

    D

    长声


    正确答案： B
    解析： 暂无解析

  • 第10题：

    单选题
    A vessel sounding a fog signal of one short，one prolonged，and one short blast is indicating that the vessel is（）.
    A

    fishing

    B

    in distress

    C

    at anchor

    D

    not under command


    正确答案： B
    解析： 暂无解析

  • 第11题：

    单选题
    A 95-meter vessel aground sounds which fog signal? （）
    A

    A rapid ringing of a bell for 5 seconds every two minutes

    B

    A whistle signal of one short，one prolonged，and one short blast

    C

    A prolonged blast of the whistle at intervals not to exceed one minute

    D

    A rapid ringing of a bell for 5 seconds，preceded and followed by three separate and distinct strokes on the bell


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    A vessel which is being assisted by an icebreaker should indicate that she is ready to cast off the towline by（）.
    A

    displaying code letter Y (Yankee)

    B

    sounding five short blasts on his whistle

    C

    displaying code numeral 5

    D

    sounding one prolonged blast on his whistle


    正确答案： D
    解析： 暂无解析

  • 第13题：

    单选题
    The wind is ESE，and a sailing vessel is steering NW. Which fog signal should she sound?（）
    A

    One blast at one-minute intervals

    B

    One blast at two-minute intervals

    C

    Two blasts at one-minute intervals

    D

    One prolonged and two short blasts at two-minute intervals


    正确答案： B
    解析： 暂无解析

  • 第14题：

    单选题
    You are underway and approaching a bend in the channel where vessels approaching from the opposite direction cannot be seen．You should sound（）.
    A

    one blast，4 to 6 seconds in duration

    B

    three blasts，4 to 6 seconds in duration

    C

    one continuous blast until you are able to see around the bend

    D

    one blast，8 to 10 seconds in duration


    正确答案： D
    解析： 暂无解析

  • 第15题：

    名词解释题
    BLAST

    正确答案： 基本局部比对搜索工具，用于相似性搜索的工具，对需要进行检索的序列与数据库中的每个序列做相似性比较。
    解析： 暂无解析

  • 第16题：

    单选题
    If you do NOT understand the course or intention of an approaching vessel you should sound （）.
    A

    one short blast

    B

    one prolonged blast

    C

    not less than five short blasts

    D

    not less than five prolonged blasts


    正确答案： A
    解析： 暂无解析

  • 第17题：

    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（）.
    A

    not under command

    B

    being towed

    C

    on pilotage duty

    D

    aground


    正确答案： C
    解析： 暂无解析

  • 第18题：

    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 （）.
    A

    No fog signal

    B

    A prolonged blast at intervals never to exceed more than two minutes

    C

    A prolonged blast followed by two short blasts at intervals never to exceed more than two minutes

    D

    A prolonged blast followed by three short blasts at intervals never to exceed more than one minute


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    Approaching an anchorage in fog，you hear one short，one prolonged，and one short blast in that sequence on a ship’s whistle． This indicates（）.
    A

    A vessel towed

    B

    A vessel not under command and unable to maneuver

    C

    A vessel anchored giving warning of her position

    D

    A vessel stopped dead in the water


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    （）, which consisted of seven short blasts and one prolonged blast, all passengers have to go to their assembly station.
    A

    When the distress alert is sounded

    B

    When the emergency equipment is switching on

    C

    When the general emergency alarm is sounded

    D

    When the distress broadcast is sounded


    正确答案： A
    解析： 暂无解析

  • 第21题：

    单选题
    A fog signal consisting of one prolonged blast followed by four short blasts would indicate thepresence of a（）.
    A

    vessel being towed

    B

    fishing vessel engaged in trawling

    C

    vessel at anchor warning of her location

    D

    power-driven pilot vessel on station underway


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    A whistle signal of one prolonged，one short，one prolonged and one short blast，is sounded by a vessel（）.
    A

    at anchor

    B

    towing a submerged object

    C

    being overtaken in a narrow channel

    D

    in distress


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    The term PROLONGED BLAST refers to（）.
    A

    a blast of from five to seven seconds' duration

    B

    a blast of from five to six seconds' duration

    C

    a blast of from four to six seconds' duration

    D

    a blast of from six to seven seconds' duration


    正确答案： A
    解析： 暂无解析

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