Loran-C is which type of navigation system ________．A.Hyperbolic，long-range navigation systemB.Short-range electronicC.Long-range，high frequency navigation systemD.Long-range，with a frequency of 1950 kHz

题目

Loran-C is which type of navigation system ________．

A.Hyperbolic，long-range navigation system

B.Short-range electronic

C.Long-range，high frequency navigation system

D.Long-range，with a frequency of 1950 kHz

相似考题

1.材料：Navigation in the canalIt is not recommended that any person shall be allowed on the bridge or in the pilot house except the pilot and other representative of the Canal，and Master and such officers and other members of the crew of the vessel as may be necessary for its navigation and control，management，operation and safety．Navigational aids are difficult to maintain and are reported to be unreliable in this waters．A considerable amount of shipping uses the canal and，in addition，many local fishing craft with nets may be encountered in the area.Since passage through the canal entails a run of more than 250 miles，long periods of considerable vigilance are necessary in order to maintain safe standards of navigation．问题：PILOT HOUSE is referred to ______ in this passage．A.the cabin in which the pilot staysB.the space in which the rudder is locatedC.the bridge of vesselsD.the cabin which is prepared for the pilotSHIPPING is referred to ______ in this passage．A.he operations of transportation of goods by seaB.the procedures of marine transportation businessC.the management of marine transportation businessD.the vessels and shipsThe author implies that ______ ．A.even by making use of modern instrument it is difficult to maintain safety in this areaB.mariners should take it easy when navigating in this areaC.modern instrument should be used to control the safety of navigation in this areaD.it is dangerous when navigating in this areaThe person on the bridge or in the pilot house shall be those ______ ．A.who are recommendedB.who are familiar with the navigation，management，operation and safety controlC.who are directly involved in the navigation，management，operation and safety controlD.who have nothing to do with the navigation，management，operation and safety control请帮忙给出每个问题的正确答案和分析，谢谢！

2.Which type of ice is a hazard to navigation ________．A.Ice rindB.Pancake iceC.Frazil iceD.Growlers

3.Which spaces are required to be segregated from cargo tanks carrying grades A，B，C，or D cargoes ________．A.Pump roomsB.Enclosed deck spacesC.CofferdamsD.Navigation spaces

4.The Experimental Lighthouse-buoy has no navigational significance and may be removed at will．The above sentence means ______.A.It's of no use for navigation and would be removed with noticeB.It's useful in navigation and may be removed without noticeC.It's helpless in navigation and may be removed without noticeD.It's helpful in navigation and may be removed without notice

参考答案和解析
正确答案：A
更多“Loran－C is which type of navigation system ________.A.Hyperbolic,long－range navigation sys ”相关问题

  • 第1题：

    Loran-C is which type of system ________．

    A.Reflected electron

    B.Electrical radiation

    C.Quarterpoint electrical navigation

    D.Hyperbolic radio navigation


    正确答案：D

  • 第2题：

    全球卫星定位系统英文为：Navigation?Satellite?Time?And?Ranging／Global?Positioning?System，简称()。

    A.GPS
    B.DGPS
    C.NST
    D.NSTAR

    答案：A
    解析：

  • 第3题：

    Which of the following commands allows navigation of the paths between directories？ （）

    • A、RD
    • B、DIR
    • C、MD
    • D、CD

    正确答案:D

  • 第4题：

    单选题
    Loran-C is which type of system（）.
    A

    Reflected electron

    B

    Electrical radiation

    C

    Quarterpoint electrical navigation

    D

    Hyperbolic radio navigation


    正确答案： C
    解析： 暂无解析

  • 第5题：

    单选题
    Safety of navigation is dealt with in chapter V of the SOLAS Convention which identifiescertain navigation safety services which should be provided by Contracting Governments and sets forth provisions of an operational nature applicable in general to all ships on all voyages. This is（）the Convention as a whole.
    A

    in contrast to

    B

    in compliance with

    C

    the essence of

    D

    representing


    正确答案： B
    解析： 暂无解析

  • 第6题：

    单选题
    Mariners should ensure correct（）of aids to navigation during twilight periods when some lighted aids to navigation are lit while others are not.
    A

    identification

    B

    distinction

    C

    discrimination

    D

    clearly seeing


    正确答案： A
    解析： 暂无解析

  • 第7题：

    单选题
    Preferred channel marks are aids to navigation which all following marks other than（）．
    A

    channel junctions

    B

    bifurcations

    C

    fishing traps

    D

    wrecks or obstructions


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    The operation of which aids to navigation may be suspended during war or national emergency（）.
    A

    Navigational satellites

    B

    Loran

    C

    Omega

    D

    Any of the above


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    The Consol navigation system，used in Russian and Northern European waters，can be used（）.
    A

    for precise navigation in coastal waters

    B

    by measuring the phase difference of the dots and dashes

    C

    as an aid to ocean navigation

    D

    if the vessel is fitted with a special Consol receiver


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    Most Navigation System equipment is（）from the bridge, a unique location that allows for a centralized,safe and efficient management of ship navigation.
    A

    accessible

    B

    restricted

    C

    deterred

    D

    far away


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    IBS必须包含（）
    A

    航行管理系统（Navigation management system）

    B

    控制显示系统（Conning Display）

    C

    报警系统（Alarm System）

    D

    A+B+C


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    The correction to be applied to a Loran-C reading when matching a sky wave to a ground wave may be found（）.
    A

    on loran charts covering areas where sky waves are used

    B

    in the Radio Aids to Navigation，PUB 117

    C

    in the Loran-C Correction Tables

    D

    Sky waves cannot be matched to ground waves in LORAN-C to produce a usable reading


    正确答案： B
    解析： 暂无解析

  • 第13题：

    材料：

    It is not recommended that any person shall be allowed on the bridge or in the pilot house except the pilot and other representative of the canal，and master and such officers and other members of the crew of the vessel as may be necessary for its navigation and control，management，operation and safety．

    Navigational aids are difficult to maintain and are reported to be unreliable in this waters．A considerable amount of shipping uses the canal and，in addition，many local fishing craft with nets may be encountered in the area. Since passage through the canal entails a run of more than 250 miles，long periods of considerable vigilance are necessary in order to maintain safe standards of navigation．

    问题：

    PILOT HOUSE is referred to ________ in this passage．

    A.the cabin in which the pilot stays

    B.the space which the rudder is located

    C.the bridge of vessels

    D.the cabin which is prepared for the pilot

    SHIPPING is referred ________ in this passage．A.the operations of transportation of GOODs by sea

    B.the procedures of marine transportation business

    C.the management of marine transportation business

    D.the vessels and ships

    The person on the bridge or in the pilot house shall be those ________．A.who are recommended

    B.who are familiar with the navigation．management．Operation and safety control

    C.who are directly involved in the navigation，management，operation and safety control

    D.who have nothing to do with the navigation，management，operation and safety control

    The author implies that ________．A.even by making use of modern instrument it is difficult to maintain safety in this area

    B.mariners should take it easy when navigating in this area

    C.modern instrument should be used to control the safety of navigation in this area

    D.it is dangerous when navigating in this area

    请帮忙给出每个问题的正确答案和分析，谢谢！


    问题 1 答案解析：C


    问题 2 答案解析：D


    问题 3 答案解析：C


    问题 4 答案解析：D

  • 第14题：

    全球卫星定位系统英文为：Navigation Satellite Time And Ranging/Global Positioning System,简称（ ）。
    A. GPS B. DGPS
    C. NST D. NSTAR


    答案：A
    解析：

  • 第15题：

    The enableModifiedFlag enables which of the following？（）

    • A、User initiated edit document command
    • B、Silent navigation from an edited page
    • C、User initiated save command
    • D、Removal of a locked for editing status

    正确答案:C

  • 第16题：

    单选题
    In particular,which is not included in the Navigation System?（）
    A

    ECDIS

    B

    RADAR

    C

    GPS

    D

    GMDSS


    正确答案： D
    解析： 暂无解析

  • 第17题：

    单选题
    No damage of any kind（）aids to navigation or navigation facilities.
    A

    should be done to

    B

    should not be done to

    C

    must be done with

    D

    must not be done with


    正确答案： C
    解析： 暂无解析

  • 第18题：

    单选题
    Public address system: loudspeakers in the vessel’s cabins, mess rooms, ETC., and on deck via which important information can bebroadcast from a central point, mostly from the navigation bridge defines（）.
    A

    PP-system

    B

    PA-system

    C

    AP-system

    D

    AA-system


    正确答案： A
    解析： 暂无解析

  • 第19题：

    单选题
    Class I and II private aids to navigation in or along navigable waters of the United States are listed in the（）.
    A

    Sailing Directions

    B

    Light List

    C

    List of Private Aids

    D

    Aids to Navigation Manual


    正确答案： A
    解析： 暂无解析

  • 第20题：

    单选题
    You need to display a very large single-record data block. Since it will be so large, a convenient means of navigation is needed between items. Which type of canvas would you use to display the data block? （）
    A

    Tab canvas. 

    B

    Pop up canvas. 

    C

    Spread table canvas. 

    D

    Vertical toolbar canvas.


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    Who will be the first users of Galileo, the new satellite navigation system?    
    A

    Rescue workers

    B

    GPS users

    C

    European drivers


    正确答案： B
    解析： 根据新闻中Rescue workers will be the first to use it with other services可知这个新的卫星航空系统的首批使用者为急救队员。
    【录音原文】
    The European Union has announced that its satellite navigation system Galileowill start operating in 2014. Rescue workers will be the first to use it with other services rolled out over the following years. Mark Gregory reports. The Galileo project is already way over budget in several years late. Two years ago, it was nearly scrapped, but now the first commercial contract has been announced, a clear signal that Europe's alternative to the American GPS satellite locating network will go ahead.

  • 第22题：

    单选题
    Which statement about satellite navigation is TRUE? （）
    A

    While a fix can be generated by signals received from two satellites，three satellites are necessary for reliable accuracy

    B

    The satellites are in equatorial orbits around the earth about 60°of longitude apart

    C

    The satellite navigation system determines a fix by measuring the doppler shift of the radio signals from the satellite

    D

    The ship's receiver cannot begin processing data until the antenna locks onto the satellite and starts continuous tracking


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    The International Association of Lighthouse authorities (IALA) buoyage system “A” uses some types of marks to distinguish safe navigation? Which type(s) does(do) not belong to the system?（）
    A

    lateral marks and cardinal marks

    B

    safe water marks

    C

    isolated danger marks and special marks

    D

    dangerous water marks


    正确答案： B
    解析： 暂无解析

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