Podcast
Questions and Answers
Which of the following is not a mandatory sensor according to performance standards?
Which of the following is not a mandatory sensor according to performance standards?
- Transmitting heading device
- Speed and measuring device
- Ships identification device
- Position force (correct)
What is the minimum display size required for ECDIS?
What is the minimum display size required for ECDIS?
- 21 inches (correct)
- 19 inches
- 22 inches
- 20 inches
When the background color of the own ship position on ECDIS top bar is grey, what does it indicate?
When the background color of the own ship position on ECDIS top bar is grey, what does it indicate?
- Dead reckoning
- Position inaccurate (correct)
- Position source of error
- Position highly accurate
Which feature in ECDIS helps in reducing the amount of displayed information?
Which feature in ECDIS helps in reducing the amount of displayed information?
What is the navigational purpose of the ENC intended for coastal navigation?
What is the navigational purpose of the ENC intended for coastal navigation?
What is the alarm called when the operator specifies the maximum stray distance on either side from own ship?
What is the alarm called when the operator specifies the maximum stray distance on either side from own ship?
Which standard compliments the S-52 standards?
Which standard compliments the S-52 standards?
What is the major benefit of a vector system electronic chart?
What is the major benefit of a vector system electronic chart?
What is the primary difference between raster and vector charts?
What is the primary difference between raster and vector charts?
Which type of chart retains all the information found on a paper chart?
Which type of chart retains all the information found on a paper chart?
What is an advantage of using vector charts?
What is an advantage of using vector charts?
What should be checked to avoid hazards while navigating using vector charts?
What should be checked to avoid hazards while navigating using vector charts?
Why might a mariner face challenges when using vector charts?
Why might a mariner face challenges when using vector charts?
What potential risk might arise from relying solely on vector charts during navigation?
What potential risk might arise from relying solely on vector charts during navigation?
What is a key advantage of using vector charts for navigation?
What is a key advantage of using vector charts for navigation?
ECDIS has the capacity to preserve the record of the track for the previous route. How long can this information be retained?
ECDIS has the capacity to preserve the record of the track for the previous route. How long can this information be retained?
Which of the following machinery information can ECDIS devices display?
Which of the following machinery information can ECDIS devices display?
What could be the consequence of improper use of ECDIS?
What could be the consequence of improper use of ECDIS?
Which statement is FALSE regarding navigational practices?
Which statement is FALSE regarding navigational practices?
Which of the following is NOT a reason for accidents when using ECDIS?
Which of the following is NOT a reason for accidents when using ECDIS?
What ECDIS alarm activates when the navigator crosses a depth less than the minimum set?
What ECDIS alarm activates when the navigator crosses a depth less than the minimum set?
What competence is required by an officer-in-charge of a navigational watch on a ship of 500 GRT or more?
What competence is required by an officer-in-charge of a navigational watch on a ship of 500 GRT or more?
What is the navigational purpose of an Electronic Nautical Chart (ENC) for coastal navigation?
What is the navigational purpose of an Electronic Nautical Chart (ENC) for coastal navigation?
What type of objects store information about other objects but are not real-world objects?
What type of objects store information about other objects but are not real-world objects?
What regulation mandates that ships operating on international routes must be equipped with ECDIS?
What regulation mandates that ships operating on international routes must be equipped with ECDIS?
What is the IMO Resolution adopted on 23rd November 1995 regarding ECDIS Performance Standards?
What is the IMO Resolution adopted on 23rd November 1995 regarding ECDIS Performance Standards?
Which type of electronic chart is referred to as intelligent?
Which type of electronic chart is referred to as intelligent?
When is the last date by which all ships must be equipped with ECDIS, regardless of size?
When is the last date by which all ships must be equipped with ECDIS, regardless of size?
Which of the following represents a disadvantage of using ECDIS?
Which of the following represents a disadvantage of using ECDIS?
What is the standard specification for chart content and display aspects of ECDIS?
What is the standard specification for chart content and display aspects of ECDIS?
Which IMO resolution, made in 1998, allows the use of ECDIS in RCDS mode?
Which IMO resolution, made in 1998, allows the use of ECDIS in RCDS mode?
What type of chart is simply a bitmap image created by scanning a paper chart?
What type of chart is simply a bitmap image created by scanning a paper chart?
Study Notes
ECDIS Overview
- ECDIS stands for Electronic Chart Display and Information System, a navigation tool that replaces traditional paper charts.
- Enhanced situational awareness and navigational accuracy are significant benefits of using ECDIS.
IMO Resolutions
- IMO Resolution A.817(19) was adopted on 23rd November 1995, establishing performance standards for ECDIS.
- Resolution MSC 86 (70) in 1998 permitted ECDIS to operate in Raster Chart Display System (RCDS) mode.
Types of Electronic Charts
- Vector charts are classified as electronic navigational charts, containing detailed ship navigation data.
- Raster charts are bitmap images representing scanned paper charts, used for navigation as well.
ECDIS Standards
- IHO S-52 standards govern chart content and display aspects of ECDIS.
- IHO S-57 standard focuses on data content for electronic navigational charts.
SOLAS Regulations
- Regulation V/19 of SOLAS mandates that ships on international routes must be fitted with ECDIS.
- All ships must have ECDIS installed regardless of size by July 1, 2018.
Advantages of ECDIS
- ECDIS provides improved availability of electronic charts, speed, and accuracy in navigation.
- Reduces risks of over-reliance through integration with other navigational aids and traditional techniques.
Alarm Systems
- Alarm deafness can occur if alarms are too frequent, causing navigators to ignore them.
- ECDIS triggers alarms if the ship crosses a set safety contour or depth threshold.
Competences for Navigational Officers
- Officers in charge must plan and conduct passage using ECDIS and demonstrate operational competency.
Sensor and Display Requirements
- Mandatory sensors include continuous position sources and speed measuring devices; LORAN-C/e-LORAN are not required.
- Minimum display size for ECDIS is 21 inches.
Vector vs. Raster Charts
- Raster charts retain all information from paper charts, whereas vector charts provide enhanced intelligence for navigation.
- Vector charts require less storage space and are scalable, offering better performance in varying zoom levels.
Errors and Challenges
- Improper use of ECDIS can lead to accidents, such as groundings and collisions, due to lack of awareness.
- Mariners may face challenges with vector charts due to their complexity and the need for training.
Information Sharing
- ECDIS systems can display information from various sensors, including ship machinery and environmental data.
- They can store track records for up to 12 hours, enhancing post-voyage analysis and navigation safety.
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Description
Test your knowledge on the IMO resolutions and performance standards related to Electronic Chart Display and Information Systems (ECDIS). This quiz covers various types of electronic navigational charts and their specifications. Challenge yourself with questions on intelligent charts and classifications of electronic charts.
