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NAV 5 EXAM
40問 • 2年前
  • Gabriel Bionat
    • 通報

    問題一覧

  • 1

    It is the most Important Element of Passage Planning.

    position fixing

  • 2

    This mode of ARPA should be used in for traffic surveillance purposes

    True motion Co-Up or True motion N-Up

  • 3

    They are placed along coasts and navigable waters as guides to mark safe water and to assist mariners in determining their position in relation to land and hidden dangers.

    Aids to Navigation

  • 4

    It is the result and risk of over-reliance to ARPA

    Indirectly the main reason for an accident

  • 5

    The Primary and Secondary methods used for position fixing in an open sea navigation

    Primary is GPS fox and secondary is Celestial fix

  • 6

    What are the two acquisition facilities required in the target acquisition in ARPA.

    Manual and Automatic acquisition

  • 7

    it is ensured to be set in the ECDIS, so that GPS positions are marked and recorded automatically in the ECDIS

    Position Fixing Interval

  • 8

    if there is a radar conspicuous object and if object is also visible, what becomes of primary and secondary methods to be used as position fixing?

    Primary "Visual fix". secondary "Radar fix"

  • 9

    in veiting up and maintaining ARPA display, what is the required log to be selected?

    Log should provide speed through the water

  • 10

    An ARPA should be able to automatically and simultaneously track and process how many targets as per IMO?

    At least "20" targets

  • 11

    It is a method of position fixing technique wherein the motion of the vessel is constantly monitored

    Parallel Indexing

  • 12

    What is not a possible threat in ARPA errors in the Interpretation of Display

    Will have no problem at all

  • 13

    They are example of an aids to Navigation

    Buoys and Beacons

  • 14

    How often does ARPA provide the Navigator with the possible overview of the traffic situation?

    At all times

  • 15

    ARPA display as prescribed by IMO, must be a separate or an integral part of what navigational equipment?

    Radar

  • 16

    The meaning of an acronym "XTE" and a symbol in the marine Radar/ARPA.

    Cross Track Error

  • 17

    An ARPA error that is caused by Input errors from the radar which causes unstable computations and erratic target behavior

    Random track errors

  • 18

    An ARPA symbol which indicates an area to be avoided based on CPA and TCPA settings relative to target speed.

    PAD

  • 19

    It is a demarcated area on a screen in order to alert the officer to the presence of previously undetected targets that have entered this zone

    Guard zones

  • 20

    An ARPA symbols can be found in this list

    IECM

  • 21

    Which of the statements listed below is not the capability of ARPA

    it can automatically delete a tracked target

  • 22

    A symbol in the ARPA provided on request consisting of at least 4 equally spaced past positions of an echo.

    TH

  • 23

    Areas that can be selected where automatic acquisition is inhibited.

    Area rejection boundaries

  • 24

    It is the primary requirement for all the users of ARPA

    Knowledgeable in the principle of manual plotting

  • 25

    A situation in which the incoming radar data for a tracked target becomes incorrectly associated with another tracked target or a non-tracked radar echo.

    target swap

  • 26

    ARPA symbol which indicates a point at which a collision could take place.

    PPC

  • 27

    It means tracks displayed by the radar echoes of targets in the form of a synthetic afterglow.

    Trails

  • 28

    Refers to simulating the effect on all tracked targets of an own ship maneuver with or without time delay.

    Trial maneuver

  • 29

    Radar/ARPA error caused by misreading a relative vector to Indicate a true course and speed

    Interpretational error

  • 30

    Time prescribed by IMO to cancel unwanted ARPA data

    Within 3 seconds

  • 31

    How does ARPA take the bearing of the target?

    At the center of target's echo

  • 32

    Position fixing method useful in reduced visibility, areas of high traffic density and coastal stages of a voyage

    Parallel indexing

  • 33

    It is the term used when the apparent center of radar echo moves over the full ship's length

    Glint

  • 34

    Known as a basic display of bearing and range of each target normally displayed by the radar, 10

    Plotting data

  • 35

    A full report of each target can be called up, giving details of the target's CPA, TCPA, course and speed.

    Numerical Data of each target

  • 36

    What is "95% probability values" means in the accuracy values of ARPA as prescribed by IMO

    95% confidence levels values"

  • 37

    Which statement is true concerning the detection performance of ARPA?

    It should not be inferior to Radar

  • 38

    What are the two motions display of a Radar/ARPA

    True and Relative motions

  • 39

    How do we decide the position fixing interval?

    Enough time to take course corrective action

  • 40

    What is the effect in the Sensitivity of ARPA tracking system when operating in automatic aquisition mode?

    Decrease the sensitivity of tracking system

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    問題一覧

  • 1

    It is the most Important Element of Passage Planning.

    position fixing

  • 2

    This mode of ARPA should be used in for traffic surveillance purposes

    True motion Co-Up or True motion N-Up

  • 3

    They are placed along coasts and navigable waters as guides to mark safe water and to assist mariners in determining their position in relation to land and hidden dangers.

    Aids to Navigation

  • 4

    It is the result and risk of over-reliance to ARPA

    Indirectly the main reason for an accident

  • 5

    The Primary and Secondary methods used for position fixing in an open sea navigation

    Primary is GPS fox and secondary is Celestial fix

  • 6

    What are the two acquisition facilities required in the target acquisition in ARPA.

    Manual and Automatic acquisition

  • 7

    it is ensured to be set in the ECDIS, so that GPS positions are marked and recorded automatically in the ECDIS

    Position Fixing Interval

  • 8

    if there is a radar conspicuous object and if object is also visible, what becomes of primary and secondary methods to be used as position fixing?

    Primary "Visual fix". secondary "Radar fix"

  • 9

    in veiting up and maintaining ARPA display, what is the required log to be selected?

    Log should provide speed through the water

  • 10

    An ARPA should be able to automatically and simultaneously track and process how many targets as per IMO?

    At least "20" targets

  • 11

    It is a method of position fixing technique wherein the motion of the vessel is constantly monitored

    Parallel Indexing

  • 12

    What is not a possible threat in ARPA errors in the Interpretation of Display

    Will have no problem at all

  • 13

    They are example of an aids to Navigation

    Buoys and Beacons

  • 14

    How often does ARPA provide the Navigator with the possible overview of the traffic situation?

    At all times

  • 15

    ARPA display as prescribed by IMO, must be a separate or an integral part of what navigational equipment?

    Radar

  • 16

    The meaning of an acronym "XTE" and a symbol in the marine Radar/ARPA.

    Cross Track Error

  • 17

    An ARPA error that is caused by Input errors from the radar which causes unstable computations and erratic target behavior

    Random track errors

  • 18

    An ARPA symbol which indicates an area to be avoided based on CPA and TCPA settings relative to target speed.

    PAD

  • 19

    It is a demarcated area on a screen in order to alert the officer to the presence of previously undetected targets that have entered this zone

    Guard zones

  • 20

    An ARPA symbols can be found in this list

    IECM

  • 21

    Which of the statements listed below is not the capability of ARPA

    it can automatically delete a tracked target

  • 22

    A symbol in the ARPA provided on request consisting of at least 4 equally spaced past positions of an echo.

    TH

  • 23

    Areas that can be selected where automatic acquisition is inhibited.

    Area rejection boundaries

  • 24

    It is the primary requirement for all the users of ARPA

    Knowledgeable in the principle of manual plotting

  • 25

    A situation in which the incoming radar data for a tracked target becomes incorrectly associated with another tracked target or a non-tracked radar echo.

    target swap

  • 26

    ARPA symbol which indicates a point at which a collision could take place.

    PPC

  • 27

    It means tracks displayed by the radar echoes of targets in the form of a synthetic afterglow.

    Trails

  • 28

    Refers to simulating the effect on all tracked targets of an own ship maneuver with or without time delay.

    Trial maneuver

  • 29

    Radar/ARPA error caused by misreading a relative vector to Indicate a true course and speed

    Interpretational error

  • 30

    Time prescribed by IMO to cancel unwanted ARPA data

    Within 3 seconds

  • 31

    How does ARPA take the bearing of the target?

    At the center of target's echo

  • 32

    Position fixing method useful in reduced visibility, areas of high traffic density and coastal stages of a voyage

    Parallel indexing

  • 33

    It is the term used when the apparent center of radar echo moves over the full ship's length

    Glint

  • 34

    Known as a basic display of bearing and range of each target normally displayed by the radar, 10

    Plotting data

  • 35

    A full report of each target can be called up, giving details of the target's CPA, TCPA, course and speed.

    Numerical Data of each target

  • 36

    What is "95% probability values" means in the accuracy values of ARPA as prescribed by IMO

    95% confidence levels values"

  • 37

    Which statement is true concerning the detection performance of ARPA?

    It should not be inferior to Radar

  • 38

    What are the two motions display of a Radar/ARPA

    True and Relative motions

  • 39

    How do we decide the position fixing interval?

    Enough time to take course corrective action

  • 40

    What is the effect in the Sensitivity of ARPA tracking system when operating in automatic aquisition mode?

    Decrease the sensitivity of tracking system