Nav6(Lec)_1574_PrelimQuiz#2_remedial

Why is the "Look-ahead" function useful in ECDIS operations?

• It shows future tides and currents along the planned route.

• It helps detect potential hazards ahead of the vessel’s current position.

• It predicts weather conditions for upcoming sections of the voyage.

• It recalculates the vessel’s ETA based on changes in speed.

How does the adjustment of color palettes in ECDIS contribute to safe navigation?

• By reducing strain on the eyes during nighttime navigation.

• By adjusting the display based on the type of vessel being navigated.

• By changing the contour depths based on operational areas.

• By eliminating unnecessary chart details during routine operations.

Why is the "Standard Display" setting recommended as a default view in ECDIS?

• It displays all available chart data without the need for user adjustments.

• It prevents the navigator from altering critical safety settings.

• It automatically switches to the most updated chart version available.

• It presents the most essential navigational features while reducing screen clutter.

Why is switching between "North-Up" and "Head-Up" modes beneficial in different navigational situations?

• It allows the navigator to switch between automatic zoom settings based on weather conditions, which can help in heavy fog or storms when visibility is low, providing more control over chart visibility.

• It helps to activate additional navigational alarms for potential hazards, such as shallow waters or restricted areas, offering more safety features during critical situations.

• It provides flexibility in visualizing the vessel’s movement relative to both the heading and geographic reference, making it easier to adapt to varying navigational needs.

• It ensures that the chart automatically updates with real-time weather data and tidal information, which can support planning for longer voyages and environmental conditions.

Why might a navigator use "Head-Up" mode when navigating through tight channels?

• It stabilizes the chart based on true north, avoiding chart rotation.

• It provides a forward-looking perspective by aligning the chart with the vessel's heading.

• It reduces the visible range on the chart to focus on nearby hazards.

• It switches to a radar overlay automatically for better situational awareness.

How does the transition from "Relative Motion" to "True Motion" affect the display in ECDIS?

• The ship moves across the screen, and surrounding objects stay stationary.

• The ship's position remains stationary while surrounding objects move.

• Both the ship and surrounding objects remain stationary on the screen.

• The ship and objects move relative to their true positions.

Which of the following is a primary functional requirement for ECDIS according to MSC.530(106)?

• The system must generate and display real-time weather forecasts, including storm warnings and sea state conditions, to assist in voyage planning.

• The system must integrate radar data and overlay it with electronic chart data to improve situational awareness and navigation accuracy.

• The system must provide continuous real-time updates and detailed information on all maritime traffic in the vessel’s vicinity for collision avoidance.

• The system must be capable of displaying ENCs in a manner that allows for easy interpretation by the user.

Why might excessive dependence on ECDIS endanger navigation safety?

• It could cause the crew to overlook other vital navigational tools and information sources, increasing the risk of missing hazards.

• It might result in a false sense of security, as ECDIS may not detect all potential dangers or provide complete situational awareness.

• It may lead to reduced proficiency in manual navigation skills, making it harder to handle situations without ECDIS.

• It could result in the system being overburdened with data, which might slow down its performance and accuracy.

Why is it risky to depend exclusively on ECDIS for collision avoidance?

• It can result in the crew not practicing manual collision avoidance skills, reducing their readiness for manual navigation.

• It could lead to the assumption that ECDIS is infallible, overlooking the possibility of system malfunctions or errors.

• It might cause reliance on a single system, potentially ignoring other essential tools like radar and visual observation.

• ECDIS alone may not provide all necessary updates on potential collision threats or changing conditions.

How does the latest IMO performance standard ensure effective route monitoring?

• By tracking only major deviations and notifying the crew at fixed intervals.

• By using static route information and requiring manual checking for deviations.

• By offering periodic updates and manual alerts for significant deviations from the planned route.

• By providing real-time alerts for deviations from the planned route and updating visual indicators.