ECDIS Questions: Hardest Quiz! Trivia

The own ship's data related to navigation is stored for 90 days. This duration allows for a significant amount of historical data to be retained, which can be useful for various purposes such as analysis, troubleshooting, and compliance. Storing the data for a longer period ensures that any potential issues or incidents can be thoroughly investigated and reviewed. Additionally, it allows for a comprehensive understanding of the ship's navigation patterns and performance over an extended period of time.

When Disk 1 Error occurs in JAN-901B/701B, the correct action is to switch to the backup drive (disk2) by using the User Maintenance menu until the service is carried out. This ensures that the system can continue to function properly while the necessary repairs or maintenance are being done on the primary disk. By switching to the backup drive, the user can avoid any disruptions or loss of data that may occur due to the error on Disk 1.

The correct statement concerning the setup of the safety contour is that if the ship has a draft of 8.3m, the set value of the safety contour may be 10m because the chart contains depth data of 5m, 10m, 20m, and 200m. This means that setting the safety contour at 10m would allow for safe navigation within the available depth data on the chart.

The COG vector represents the direction of the vessel's movement over the ground, and its bearing is set by GPS. On the other hand, the HDG vector represents the direction the vessel is pointing, and its bearing is set by the gyro.

The correct answer is "Display only the currently viewed chart(s)". This means that when the Fix View Option is activated, only the chart(s) that are currently being viewed will be displayed. This option allows the user to focus on the specific chart(s) they are interested in without being distracted by other charts that are not currently being viewed.

The correct answer is that the ECDIS Logbook displays this information. This means that if the PSC (Port State Control) requests evidence for a past Line of Position (LOP), such as the date, time, intersection of LOP's, and offset, the ECDIS Logbook can provide this information. The ECDIS (Electronic Chart Display and Information System) is a navigation system used on ships, and it keeps a record of important navigational data, including past LOP's. Therefore, if the ship has applied less than 3 LOP's, the ECDIS Logbook can display the requested evidence.

If the GPS information on the ECDIS fails but the GPS itself is working properly, the correct action would be to switch to DR mode from the sensor menu and manually enter the vessel's position using the "Position offset Menu - Enter position function". This allows the navigator to input the correct position manually and continue monitoring the vessel's position accurately. The other options of confirming the vessel position using the LOP function or decreasing the XTL limits are not appropriate in this scenario.

The correct statement concerning the AVCS Chart data update operation is that if you receive the latest AVCS Base CD and the latest AVCS Update CD, you should update by using the AVCS Update CD after installing the charts using the AVCS Base CD. This means that the AVCS Update CD should be used for updating the charts after the initial installation using the AVCS Base CD and the latest updates should be applied in this manner.

The symbol "Activated AIS target" indicates that a specific AIS target has been selected or activated. AIS stands for Automatic Identification System, which is a tracking system used in maritime navigation to identify and locate vessels. By activating a target, it means that the user has chosen to focus on a particular AIS target for monitoring or further actions.

The correct alternative is that the own ship's position is positioned by entering the offset value. This means that the position of the ship is determined by manually inputting the offset value, rather than being fixed by GPS or D-GPS. Additionally, the geographic system of GPS is not relevant to the positioning of the own ship's position.

The correct statement concerning the setup of the AIS Filter for displaying AIS targets located less than 20 miles from your own ship position is "Filter Mode: Display" and "Ring: 20 NM". This means that the filter is set to display AIS targets within a distance of 20 nautical miles from your ship position.

The correct answer is "The obstruction symbol can change by editing the attributes of the obstruction." This means that if an obstruction is manually added to the chart, its symbol can be modified by changing its attributes. This allows for flexibility in representing different types or characteristics of obstructions on the chart. The other options in the question do not address the ability to change the obstruction symbol.

When the period of validity of the AVCS cell permit has expired, the correct statement is that the chart is displayed with a warning message. This means that even though the permit has expired, the chart is still shown to the user. However, a warning message is displayed to inform the user that the permit has expired. This allows the user to be aware of the expiration and take appropriate action if necessary.

When a sleeping AIS target enters an Acquisition Zone area (AZ), it is automatically activated. This means that the system recognizes the presence of the sleeping AIS target and initiates its monitoring and tracking. The AZ area is designed to monitor both sleeping AIS and ARPA targets, but in this specific case, the focus is on the activation of the sleeping AIS target.

The first statement is true because the anchor watch area is indeed always a circle. However, the second statement is false because the center of the anchor watch area is not necessarily the CCRP (Computed Constant Radius Point) point.

The correct statement concerning the User map function is that all objects edited with the User-map function are displayed on all display categories (Base, Standard, Other). This means that any information or symbol that is edited using the User-map function will be visible in all three display categories, regardless of the category they originally belonged to. This allows for a comprehensive and consistent representation of the edited objects across all display categories.

When planning a route, if there are limit check and safety check errors, the ECDIS does not allow you to start TCS (Track Control System) route auto sail. Therefore, statement 1 is true. However, if the user disregards the safety check errors, the ECDIS does not allow the user to start TCS route auto sail. Therefore, statement 2 is false.

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The correct statement concerning the function of the export/import route file is that the route plan exported from the ECDIS can be edited on a PC. This implies that the route plan can be modified or adjusted using a computer, indicating that it is editable on a personal computer.

To correctly shut down the ECDIS system, the procedure is to press and release the POWER button. This action will initiate the shut-down process and power off the ECDIS system.

The correct statement concerning the Event mark is that it is deleted with the "Other Information" menu.

The correct statement concerning the function of an audible alarm is that the volume of all audible alarms can be adjusted to silent.

It is possible to set up a filter for AIS, which stands for Automatic Identification System. AIS is a system used for tracking and identifying vessels, and filters can be applied to narrow down the information received. However, it is not possible to filter Navtex messages depending on a ship's position. Navtex is a system used for transmitting navigational and meteorological warnings to ships, and the messages are broadcasted to all vessels within range without the ability to be filtered based on position. Therefore, the correct answer is 1 = True, 2 = False.

When the color of the "!" button on the Display panel is red, it indicates that some information belonging to the standard display category is not displayed. This means that there may be missing or incomplete information on the screen, which could affect the accuracy and completeness of the displayed data. It is important for the user to address this issue and ensure that all necessary information is being properly displayed for safe navigation.

The correct answer is (X) Main Unit (Y) 1 minute. This means that only the main unit of the ECDIS can work with the built-in UPS battery for 1 minute during the ship's main power blackout. If the ship's power is restored within 1 minute, the ECDIS does not need to be manually re-initialized. This suggests that the main unit has a backup power source that allows it to continue functioning for a short period of time without external power.

The correct answer is "User chart" because the question states that with the file manager, we can transfer certain information by LAN. Out of the options given, "User chart" is the only one that fits the criteria of being transferable through LAN.

The correct statement concerning the Radar overlay function is that the radar-video displayed on the ECDIS is manually adjusted on the ECDIS. This means that the user of the ECDIS system has the ability to manually adjust the radar-video display according to their preferences or specific requirements.

The correct answer is that the route limit check will show an error when the leg length is shorter than Ꚍ*L(ship). This means that if the distance between two points on the route is less than the product of the constant Ꚍ and the length of the ship, an error will occur. This check is likely in place to ensure that the ship has enough space to navigate safely and to prevent any potential accidents or damage to the ship.

The correct answer is "Alert will be activated only when danger detection vector crosses Warning area." This means that the alert will only be triggered when the danger detection vector, which represents the direction or path of a potential danger, crosses the warning area. The other options mention either a polygon area or a danger detection sector, which are not relevant to the activation of the alert.

The given answer states that the first statement is false and the second statement is true. This means that it is not possible to synchronize chart updates between multiple ECDIS's, but each ECDIS does have a unique permit.

The correct answer is "Show you up to 300 AIS targets in priority filtering mode." This means that when the AIS/TT filter is set to priority filtering mode, it will display up to 300 AIS targets.

The correct answer states that isolated dangers that are more shallow than the depth set in safety contour setting will be displayed with a mark. This means that if the depth of an isolated danger is less than the safety contour depth, it will be marked on the display. This helps to identify potential hazards in shallow water areas.

The correct statement concerning the HDDs installed in the ECDIS equipment is that the ECDIS normally works with dual drives. This means that there are two hard disk drives installed, one acting as the master and the other as the backup. If the master hard disk drive malfunctions, the ECDIS automatically switches over to the backup hard disk drive to ensure continuous operation.

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The correct statement concerning the TT (Target Tracking) displayed on ECDIS is that the target number of TT is automatically assigned by RADAR. This means that the ECDIS system uses the radar data to automatically assign a target number to each target being tracked. It does not require any manual operation on the ECDIS or radar to assign the target number.

The correct answer states that performing a safety check in an area that is not covered with Electronic Navigational Charts (ENC) is futile. This means that if the area does not have digital charts, the safety check function cannot accurately assess the safety of the route. ENC is a digital database of navigational charts, and without it, the safety check function cannot effectively analyze the route for potential dangers. Therefore, attempting to perform a safety check in an area without ENC would be pointless.

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