Master Mariner ECDIS Quiz Questions With Answers

An ECDIS (Electronic Chart Display and Information System) is a navigational tool used on ships that displays electronic navigational charts. It is designed to provide essential information for safe navigation. Hydrographic data is crucial for determining the depth and characteristics of the water, while RADAR targets and ARPA vectors help in identifying and tracking other vessels and potential obstacles. Therefore, an ECDIS is required to display hydrographic data, RADAR targets, and ARPA vectors to assist mariners in making informed decisions and ensuring safe navigation.

ECDIS stands for Electronic Chart Display and Information System. It is a navigation system that uses electronic charts to provide real-time information about a ship's position, course, and speed. It displays navigational data such as depth contours, buoys, and other landmarks, helping the crew to navigate safely. The system also integrates with other onboard sensors and systems to provide a comprehensive view of the ship's surroundings.

AIS provides near real-time information regarding another vessel's speed over ground and heading regardless of visibility. This means that AIS can give accurate and up-to-date information about the speed and direction of a vessel, even in situations where visibility is poor or limited. This is important for navigation and collision avoidance, as it allows vessels to have awareness of other vessels' movements and make informed decisions to avoid potential collisions.

The correct answer is RADAR. RADAR, or Radio Detection and Ranging, is a component of the Integrated Bridge System (IBS) that allows a navigator to see an integrated navigation and tactical display and avoid navigational hazards. RADAR uses radio waves to detect and track objects, such as other vessels, land masses, and weather systems, providing real-time information on their positions and movements. This information helps the navigator to make informed decisions and safely navigate through potential hazards.

The ship's electronic data base used in the ECDIS system is called an Electronic Nautical Chart. It is a digital chart that contains all the necessary information for navigation, including maps and chart data. This electronic chart allows for more efficient and accurate navigation as it can be updated in real-time and provide additional features such as route planning and collision avoidance.

Automatic identification systems (AIS) are designed to automatically provide information to shore stations, vessels, and aircraft. One crucial piece of information that AIS must provide is the vessel's course. This information is important for navigation and collision avoidance purposes, as it allows other vessels and aircraft to track and predict the movement of the vessel. By knowing the vessel's course, other entities can make informed decisions about their own navigation plans and take appropriate actions to ensure safety at sea.

The correct answer is the International Hydrographic Organization. This organization is responsible for coordinating the activities of national hydrographic offices and promoting the development and use of hydrographic information for navigation and other maritime purposes. The chart information used in ECDIS should be the latest edition of information originated by a government-authorized hydrographic office and conform to the standards set by the International Hydrographic Organization.

Parallel indexing refers to the process of maintaining a constant heading while navigating parallel to a reference line. In the context of radar, it involves continuously updating the cross track tendency, which indicates how much the vessel is deviating from its intended course. By monitoring this tendency, the navigator can make adjustments to ensure that the vessel stays parallel to the desired track. Therefore, parallel indexing is the most suitable explanation for the given answer.

Taking anti-seasickness pills as soon as possible after entering a liferaft can help prevent loss of body moisture by vomiting. Seasickness can cause nausea and vomiting, leading to dehydration. By taking the pills, the individual can reduce the likelihood of vomiting and therefore minimize the loss of body moisture. This is crucial in a liferaft situation where access to fresh water may be limited, and dehydration can worsen the overall condition of the survivors.

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