Navigation Aids Quiz - AtoN & V-AIS

<p>They can be omitted (C)</p> Signup and view all the answers

<p>An alternative official chart (D)</p> Signup and view all the answers

<p>Virtual AIS Aids to Navigation (A)</p> Signup and view all the answers

<p>Specific table symbols (D)</p> Signup and view all the answers

<p>In an Electronic Navigational Chart (ENC) (C)</p> Signup and view all the answers

<p>Obstruction to navigation in the area (B)</p> Signup and view all the answers

<p>Specific navigational purposes or operations (A)</p> Signup and view all the answers

<p>Both indefinitely and for a specific fixed period (A)</p> Signup and view all the answers

<p>Diamond (D)</p> Signup and view all the answers

<p>The Secretary of State for Defence (B)</p> Signup and view all the answers

<p>An aid to navigation that physically exists (C)</p> Signup and view all the answers

<p>It is visible on display systems only. (A)</p> Signup and view all the answers

<p>Providing live updates for port activities (C)</p> Signup and view all the answers

<p>When a physical AtoN cannot be established (C)</p> Signup and view all the answers

<p>Physical AIS AtoN can exist in the real world, while Virtual cannot. (A)</p> Signup and view all the answers

<p>Physical AIS AtoN is not normally encoded in an ENC. (D)</p> Signup and view all the answers

<p>Information available through the pick report (A)</p> Signup and view all the answers

<p>Standards for buoyage systems (A)</p> Signup and view all the answers

<p>To help recognize lesser known ENC symbols (A)</p> Signup and view all the answers

<p>In daytime colors (D)</p> Signup and view all the answers

<p>NP5012-ADMIRALTY Guide to ENC Symbols (D)</p> Signup and view all the answers

<p>Automatic Identification System Aids to Navigation (B)</p> Signup and view all the answers

<p>Using AIS Message 21 (C)</p> Signup and view all the answers

<p>ECDIS and radar systems (A)</p> Signup and view all the answers

<p>User support and advice (B)</p> Signup and view all the answers

<p>The guide is the first edition. (C)</p> Signup and view all the answers

<p>Water shoaler than safety contour (A)</p> Signup and view all the answers

<p>Red/green (A)</p> Signup and view all the answers

<p>Zoom out until they disappear (D)</p> Signup and view all the answers

<p>Isolated features with insufficient information (A)</p> Signup and view all the answers

<p>Insufficient information for symbolization (B)</p> Signup and view all the answers

<p>Yellow/black (A)</p> Signup and view all the answers

<p>Transition between different regional standards (C)</p> Signup and view all the answers

<p>Cursor inquiry (A)</p> Signup and view all the answers

<p>Generic isolated danger symbol with unknown depth (B)</p> Signup and view all the answers

<p>All significant seafloor features detected with very high accuracy (B)</p> Signup and view all the answers

<p>Doubtful depth indicated (B)</p> Signup and view all the answers

<p>2 stars D (A)</p> Signup and view all the answers

<p>Quality of bathymetry yet to be assessed (B)</p> Signup and view all the answers

<p>Refer to the cursor enquiry for additional information (D)</p> Signup and view all the answers

<p>Medium accuracy survey with no expected hazards (B)</p> Signup and view all the answers

<p>Feature not yet known to ECDIS (D)</p> Signup and view all the answers

<p>All significant seafloor features detected with very high accuracy (D)</p> Signup and view all the answers

<p>Details about the IALA Maritime Buoyage System (D)</p> Signup and view all the answers

An Electronic Navigational Chart (ENC) symbol used to display navigational information that doesn't always correspond to a physical object, such as a danger area or a prohibited area.

An ENC symbol used to display navigational information that is reported by an authorized provider using AIS Message 21 “Aids to navigation report”. This is typically information related to a known aid to navigation, but may also encompass other kinds of navigational information, such as information related to a buoy, a lighthouse, or a channel.

It's a virtual aid to navigation that is presented on ECDIS based on Automatic Identification System (AIS) data. This means that the aid is shown on your navigation display, even if you can't see it physically.

A specific type of AIS AtoN that uses AIS Message 21. This message type reports the position, status, and other information about an aid to navigation.

Digital navigation charts that show a wide range of information critical for safe and efficient navigation including depth, coastline, obstacles, and aids to navigation. They are used with electronic chart display and information systems (ECDIS).

Electronic Chart Display and Information System (ECDIS) is a specialized navigation system integrated with an Electronic Navigational Chart (ENC). It provides various navigational data, including chart information, radar and AIS data, and navigation algorithms, facilitating safe and efficient navigation.

A document offering guidance about the standard used for ENC symbols, their interpretation, and their use in electronic chart display and information systems (ECDIS).

An official chart document that offers a comprehensive overview of ENC symbols, providing a detailed explanation of their meaning, use, and application in electronic chart display and information systems (ECDIS).

An AIS AtoN (Automatic Identification System Aid to Navigation) that is physically present in the real world. Think of this as a real-life buoy or lighthouse.

A virtual aid to navigation that does not physically exist and is only visible on electronic display systems. These aids are used for temporary hazards or navigation updates.

Virtual AIS AtoNs can be useful for quickly marking dangers like shipwrecks, floating debris, uncharted hazards, or virtual shipping lanes, providing a real-time view of the waterway.

You can find information about Physical AIS AtoNs in a 'pick report' when you query a navigation aid.

It's a method for representing a navigational way-point, hazard, or area on a digital maritime chart. It is typically used for representing information that is not physically present but important for navigation purposes.

ENCs (Electronic Navigational Charts) usually don't include Physical AIS AtoNs because the information is best accessed through other methods, like 'pick reports'.

ENCs can include virtual navigational aids that are not physically present but provide important information.

A virtual aid to navigation (Virtual AtoN) is an electronic navigation chart (ENC) symbol used to represent navigational information that may not correspond to a physical object, such as a danger area or a prohibited area.

AIS AtoN are displayed on an ENC using AIS Message 21, which reports information about aids to navigation, including positions, statuses, and other relevant details.

The symbols used for Virtual AIS AtoN on ENCs include:

Virtual AIS AtoN are only shown on ENCs if they are known to be permanent or deployed for a fixed duration.

In addition to the standard ENC symbols, other symbols (typically diamond-shaped) might be displayed on ECDIS for AIS AtoN within broadcast range, but these are not included in the ENC data because they are dynamic.

Electronic Navigational Charts (ENCs) are digital maps used with Electronic Chart Display and Information Systems (ECDIS) to provide detailed navigational information, such as depths, coastlines, obstacles, and aids to navigation.

Electronic Chart Display and Information Systems (ECDIS) are specialized navigation systems that integrate ENCs and provide a wide range of navigational data, including chart information, radar and AIS data, and navigation algorithms, to support safe and efficient navigation.

A boundary between two different IALA buoyage systems, indicating which system applies to the area on either side of it.

An Electronic Navigational Chart (ENC) symbol indicating a wreck, rock, or obstruction, but with less depth than the safety contour set by the user or with an unknown depth.

An ENC symbol that indicates a sounding of doubtful depth, meaning the measured depth might be unreliable.

A symbol on an ENC chart indicating a dredged area that is deeper than the surrounding seabed, meaning there is a safe navigable depth.

Shows a feature or area with insufficient information to symbolize it with other symbols, often using a question mark or a query mark.

An ENC symbol indicating the quality of bathymetry data needs further assessment. This means the accuracy of the depth measurements is not yet determined.

An ENC symbol used to denote a specific cautionary area on the chart. Additional information related to this caution is available through cursor inquiry on the ECDIS.

A type of lateral buoy used in IALA systems, featuring a conical shape, often with red and green markings depending on the system.

A type of lateral buoy used in IALA systems, featuring a cylindrical shape, often with red and green markings depending on the system.

An ENC symbol indicating a new type of feature that is not yet fully known and more information is available through cursor inquiry.

These marks indicate the direction of safe passage. They have a specific colour and shape depending on their cardinal direction (North, East, South, West).

A type of beacon used to guide ships, displaying red and green lights alternating, depending on the IALA system.

These marks warn mariners of an isolated danger, indicating that the area is not safe to navigate.

ENC symbols used to indicate non-tidal current direction, providing information about the general flow of water in a particular location.

Virtual Aids to Navigation (Virtual AtoNs) are used by Electronic Navigational Charts (ENCs) to show information critical for navigation purposes but without a physical counterpart. These virtual aids can be anything from a danger area to a prohibited zone.

Automatic Identification System (AIS) AtoNs are virtual aids to navigation displayed on Electronic Chart Display and Information Systems (ECDIS) by the use of AIS information. These AtoNs are often related to known navigation points like buoys and lighthouses but can encompass details about other navigation aids.

An AIS AtoN (Automatic Identification System Aid to Navigation) that actually exists in the real world. Think of it as a real-life buoy or lighthouse.

ENC symbols indicate the absence of mandatory information. The symbol signifies that a specific attribute, such as beacon shape, direction, or orientation, is missing from the navigation data on the ENC.