Nav 6 Final

Hernandez, Remefil H. · 12問 · 2年前

通報

問題一覧

User-defined ECDIS alarms are:

Alarms that can be set by the mariner to alert them of specific areas of interest.

What is the purpose of real-time updates for ENCs?

To ensure the accuracy of navigational information

What is the role of AIS data in ECDIS?

To display information about nearby vessels, including their identity, position, and course.

What is the significance of electronic chart corrections (ECCs)?

They are used to update ENCs with the latest navigational information.

How can ECDIS improve navigational safety?

By providing real-time alerts and warnings.

What is the primary advantage of using ECDIS for route planning?

It can consider various factors such as water depth, currents, and traffic density.

What is the role of ECDIS in complying with maritime regulations?

It can provide real-time information needed to comply with regulations.

How does the integration of AIS data into ECDIS enhance maritime safety?

By providing real-time information about nearby vessels, reducing the risk of collisions.

What is the impact of accurate and up-to-date ENCs on maritime operations?

Improved navigational safety and efficiency.

How can effective alarm management on ECDIS contribute to enhanced navigational safety?

By providing early warnings of potential hazards.

What is the importance of understanding the specific causes of ECDIS alarms?

To identify and rectify system malfunctions.

How can crew training on ECDIS alarm response procedures improve maritime safety?

By increasing the speed of response to alarms.

What is the role of regular ECDIS system maintenance in ensuring reliable alarm functionality?

To prevent system failures and data corruption.

How can the integration of AIS data with ECDIS alarm systems enhance collision avoidance?

By providing real-time information about nearby vessels.

Which of the following is a mandatory ECDIS alarm?

Crossing Safety Contour Alarm

What is the primary purpose of a Deviation from Route alarm?

To indicate a deviation from the planned route.

A Positioning System Failure alarm indicates:

A loss of signal from the primary or secondary positioning system.

What is the primary function of a Different Geodetic Datum alarm?

To indicate a potential inaccuracy in positioning due to different geodetic datums.

A Safety Contour alarm is triggered when:

The vessel approaches a user-defined distance from a hazard.

Isolated Danger alarm indicates:

A hazard that is not charted on the ENC.

When UAIS sensor is connected on ECDIS, what is the target symbols being displayed?

triangle

What is the RADAR target symbols displayed on ECDIS?

small circle with a speed vector

In ARPA system the vector length of own ship as well as those on the targets depends on?

speed

Which ARPA Regulation does an automatic target acquisition function is based on?

harmonized criteria

How does the relative vector displayed on ECDIS?

dotted line

What are the recommended combination of stabilization mode and speed sources when using RADAR overly?

GPS stabilization and Log speed source

What IHO standard developed to establish a set of coordinating principles to achieve harmonization of data standards among ENC?

RENC

What is the mark of current cell edition of chart on the display updates?

green circle

What is the requirement to a copy protected ENC cell?

permits

When making manual updates for Temporary & Preliminary (T&P) notices where it will affect?

One particular cell

During navigation on restricted waters OOW checking position by all available means except?

cross hatching method

How will you plot on the ECDIS the manual position fix to determine you ship position while navigating in coastal water?

LOP function

What is the interval for plotting a manual fixed on a full ECDIS system vessel while navigating in coastal area?

1 hour

Which function on the ECDIS will give you advance alert before reaching a potential threat to safety or the safety contour is encountered.

Look ahead settings

Where the temporary or preliminary notices is collected as separate layer over the chart?

Admiralty Information Overlays

What would be your idea when ECDIS alarm signal sounds while approaching a shallow and restricted water?

Safety contour alarm

How would you relate the word” Restricted water “in navigational term?

Coastal water

When would you opted to use the manual steering of the vessel while in transit?

Coastal and restricted area

Which particular area would you consider ECDIS alarm system is most effective?

Restricted water

Which aspect would you consider the significance of ECDIS safety contour line?

Course deviation

How would you identify the palette color in the ENC chart that represent “no go area “?

Blue color

When using ECDIS in coastal navigation, how would you relate to an area with “no go areas “annotations?

Shallow water

How could you say that an ECDIS chart system is safe to use in navigation?

When the chart has the latest and updated corrections

What would be the primary factors to be considered when passing any coastal water?

The under keel clearance of the vessel

What would be your navigation method when your ship is in transit along Singapore VTS area?

Coastal navigation

What is the purpose of track plotting and playback in ECDIS?

To record and review the vessel's track history

What would be the back-up arrangement of chart correction, which chart information supports?

has the latest edition as corrected by official updates

What should be the necessary system as back up of an ECDIS that is capable of displaying information which is equivalent to the standard display in the “performance standard “rating?

Electronic back up source

When should be the correction and updating of an ENC chart?

At regular basis

can course deviation can be avoided most importantly in passing a restricted water?

Updating and correcting ship’s position

Why is it important to cross-check GPS positions with other methods?

To identify potential positional errors caused by GPS interference

What is a potential issue when using small-scale electronic charts?

Reduced visibility of detailed hazards

When should these depth and contours or route monitoring alarm will probably sounds?

In waypoint arrival circle

What would be the reason that precisely affects the alteration of courses before arriving a waypoint as indicated by an ECDIS “curve predictor “?

The current direction and velocity

How would you definitely relate the word “range parallel indexing “?

Coastal navigation

Which would be the correct definition of the word CCRP on ECDIS system?

Common Consistent Reference Point

Which would be the correct definition of the word EPFS on satellite positioning system?

Electronic Positioning Fixing System

What should be the term used when radar image is added to the ECDIS display and the chart and radar image automatically match in scale and orientation?

Radar Overlay

Which one should not be included as sources of errors from echo sounder?

Safety bottom

Which should be considered as a standard chart format that when uploaded to ECDIS system, the ENC contents are translated into the internal data format used by that ECDIS?

S-57 format

What is the primary risk associated with inaccurate depth data in ENCs?

Incorrect calculation of under-keel clearance

How can inaccurate tidal datum information impact navigation?

Incorrect calculation of actual water depth

What is a potential issue when using small-scale electronic charts?

Reduced visibility of detailed hazards

How can inaccurate safety contour calculations impact navigation?

Increased risk of grounding

What is the primary purpose of safety depth contouring on ECDIS?

To help plan routes

How can inaccurate ENC data lead to false alarms on ECDIS?

Incorrectly positioned or sized navigational marks or dangers

What is the impact of missed alarms due to inaccurate ENC data?

Increased risk of accidents

How can mariners mitigate the risks associated with ENC data inaccuracies?

Cross-reference information from multiple sources

Which ECDIS chart setting bookmark user can customize the chart display accordingly?

BA Layers

What is the role of proper ECDIS training in mitigating the risks of ENC data inaccuracies?

To ensure the crew understands the limitations of ECDIS

What is the impact of inaccurate AIS data integration on ECDIS?

Incorrect vessel positioning and potential collision risks

How can tides, currents, and wind affect a vessel's COG and SOG?

By influencing the vessel's speed and direction

How can inaccurate ENC data lead to false alarms on ECDIS?

Incorrectly positioned or sized navigational marks or dangers

What is the importance of regular ENC updates?

To incorporate the latest corrections and updates

Which ECDIS symbols appears on screen as a dashed-line vector expanding on the direction of the COG/ STW?

Vectors

Which specific type of safety parameter needs to be set realistically for each leg of the voyage, and only flags up hazards within the intended footprint of the passage?

Cross Track Distance

During route monitoring the real tide is based on the following except one:

Vessel current position

What kind of port that the observation made to collect this information generally were not as extensive tidal prediction?

Secondary ports

What course of action will you take upon ship’s position accumulate a cross track error?

Go back to course line

What factor affecting the vessel’s on heading 000˚ not deviating her course but only increasing her speed?

Current setting 000˚

What is a potential issue when using small-scale electronic charts?

Reduced visibility of detailed hazards

Which sensor primarily feeds positional data to ECDIS?

GPS

Why is it important to cross-check GPS positions with other methods?

To identify potential positional errors caused by GPS interference

What is the role of the safety contour on ECDIS?

To highlight areas that are safe for navigation based on depth

What could cause Radar overlays on ECDIS to be unreliable?

Poor weather conditions or sea clutter

Which of the following is NOT a limitation of AIS data on ECDIS?

AIS can detect non-moving hazards

What is the importance of keeping ECDIS charts updated?

To ensure navigational data reflects current conditions

How can ECDIS alarms become counterproductive?

By triggering excessive and unnecessary warnings

What could be the result of mismatched chart datum’s in ECDIS?

Incorrect position fixes

Which input to ECDIS helps in tracking vessel speed?

Speed log

Why is human oversight critical when using ECDIS?

To interpret data and address limitations of the system

What is the significance of chart scales on ECDIS?

They determine the clarity and detail of chart data.

Why should the ECDIS safety depth setting be adjusted?

To reflect the vessel’s draught and under-keel clearance requirements

What action should be taken if GPS spoofing is suspected?

Cross-check position using Radar, visual bearings, or celestial navigation

Which of the following conditions affects the reliability of Radar overlays on ECDIS?

Incorrect gyrocompass input

Why is it necessary to set appropriate alarms on ECDIS?

To reduce distractions caused by unnecessary alarms

How should navigators approach confined waters with ECDIS?

Use a smaller chart scale for better detail and cross-check with Radar and visual aids

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