Electronic Chart Display and Information System (ECDIS) Practice Exam

These questions are part of the practice quiz. Start practicing

• Which modules are included in an AIS unit?
• Which data must be included in a system to ensure effective ECDIS operation?
• Which of the following chart producers are Data Servers?
• Can the anchor watch of the ECDIS be solely relied on for determining if the anchor is dragging?
• What does ECDIS do when there is a loss of position, heading, or speed sources?
• What is an example of the UN/LOCODE for a voyage destination?
• Which feature of ECDIS provides real-time position updates?
• What is the primary disadvantage of relying solely on ECDIS for anchor watch?
• What does the term "MMSI" stand for in relation to AIS?
• Compared to radar, what essential consideration must be noted regarding AIS?
• In an ECDIS, which function is essential for ensuring safety while maneuvering?
• According to IMO PS, what should be possible with navigational information regarding operator action?
• What system is required for the proper operation of AIS according to regulations?
• According to IHO standards, are ENC's allowed to overlap within the same usage band?
• What is the purpose of the chart update mechanism in ECDIS?
• In ECDIS, what does RCDS mode stand for?
• Can Collision Avoidance decisions be based solely on ECDIS information?
• Which chart display options produce the most uncluttered screen when using the night palette?
• Which of the following might indicate a failure in the positioning system of an ECDIS?
• Why is it important for crews to understand ECDIS alarm settings?
• What is the importance of the AIS target classification as "loss of communication"?
• What impact does the playback function have on ECDIS?
• Can an AIS be placed on standby if it may compromise the vessel's safety?
• Which mode indicates that ECDIS is utilizing raster charts?
• Which elements may lead to possible errors in display or failures in an ECDIS?
• Which statement about AIS is correct?
• If a vessel is too close to a danger, what does the ECDIS indicate?
• Which of the following is not an alarm required by the IMO Performance Standards for ECDIS?
• According to SOLAS, what sensors must be connected to a Class A AIS unit for vessels over 50k GT?
• What does ECDIS stand for?
• An AIS symbol with an "X" through the ship symbol indicates what?
• When logging AIS data, what aspect must be ensured?
• Which panel in the Transas ECDIS allows the navigator to see the COM Trace?
• What scale data should be accessible in the SENC for alarms and indications in ECDIS?
• What should a mariner do if the ECDIS indicates a diverging path from the planned route?
• Which reference systems influence ECDIS information?
• When route planning, what scale charts does the navigator start with for initial waypoint placement?
• Which format can only be provided by NOAA certified value-added distributors?
• Which of the following is NOT a required sensor for ECDIS operation?
• Can a radar display both ARPA data and AIS data for the same target?
• What must be recorded in the ship's official log regarding the AIS unit?
• Is it possible to enter geographical coordinates of a position and display it?
• What happens when route planning is closer than a specified distance from a prohibited area?
• Which is a prerequisite for effective route planning in ECDIS?
• What could cause radar echoes not to match the charted position of a fixed object on ECDIS?
• What three components make up an ECDIS system?
• Which of the following statements best describes ECDIS's role in navigation?
• Which display mode is most useful for showing isolated soundings?
• What does XTD stand for in the ECDIS navigation context?
• What is the desired manner for carrying out route planning and monitoring in ECDIS?
• Why is GPS input important for radar operation?
• Which AIS data report includes the ship's name?
• Can the navigator modify the cross track distance (XTD) for each route leg on an ECDIS?
• How does the Transas ECDIS allow for chart display?
• What is the importance of past track data in ECDIS operation?
• Which scenario would demonstrate the ECDIS allowing for customized displays?
• What does the dashed line in an AIS target symbol represent?
• Which parameter is highlighted in ECDIS when every spot soundings are displayed?
• How is the own ship displayed on the SENC?
• Are radar and AIS considered complementary systems?
• What does a flag of fixed length at the end of the AIS vector indicate?
• Route planning (except for deviations and major changes) should be done before the start of the voyage. True or False?
• What key function does the ECDIS perform regarding navigation hazards?
• Can mariners manually adjust the GPS position of the ship?
• What do ECDIS automatic route checking features help in route planning?
• Which cross-check method provides continuous positional information for ECDIS?
• What are two examples of Regional Electronic Navigational Charts (RENCs)?
• What capability does the ECDIS have when using manually obtained bearings and LOPs?
• Which of the following values are selected by the navigator for route monitoring in ECDIS?
• What should regularly be done to verify the vessel's position on ECDIS during route monitoring?
• Which data must ECDIS be capable of recording at one-minute intervals?
• What must be considered when setting the cross track error limits in ECDIS?
• What happens if chart autoload is turned off?
• What type of data does the Class A AIS Position Report transmit regarding the ship's position?
• Which method is least effective for verifying the vessel’s position on ECDIS during coastal navigation?
• Why is ZOC important in ECDIS navigational practices?
• How are alternative routes established in ECDIS?
• What are the "single operation actions" required by the IMO performance standards for ECDIS?
• What is the standard high transmit power level for AIS?
• What factors can affect the AIS data transmission for a target?
• Which of the following is NOT transmitted as part of dynamic data in AIS?
• What methods are available for loading chart data into ECDIS?
• What happens when a ship crosses into a prohibited area?
• What does the integrity status in AIS indicate about the vessel's position?
• How long must ECDIS preserve the record of the voyage track?
• What impact may an outdated Presentation Library have on the ECDIS?
• An example of static information transmitted by AIS is?
• When a ship’s AIS performs an accuracy check, what is it primarily assessing?
• On which scales of charts are symbolized area boundaries typically used to aid in area identification?
• What type of chart is typically used in ECDIS for displaying navigational aids?
• How are new electronic charts loaded into a NaviSailor 4000 ECDIS program?
• Should AIS Text Messaging be relied upon as the primary means for MAYDAY or urgent communications?
• What does an AIS symbol with a cross in the middle of a diamond signify?
• What should a vessel operating with ECDIS be mindful of regarding manual observations?
• Loading SENC data into the ECDIS should enhance which aspect of navigation?
• When a distant AIS target first shows up on the radar, which information is normally displayed first?
• During route planning, when do ECDIS automatic route checking features not function?
• What triggers a different geodetic datum alarm?
• How does the symbol for an AIS sleeping target compare to that of an activated target?
• In normal navigation operations with ECDIS, how frequently can alarms be ignored?
• According to IMO Performance Standards, which sensors must ECDIS monitor for alarm activation if input is lost?
• Can the ECDIS trial maneuver serve as the sole source of information for collision avoidance maneuvers?
• Which component does NOT play a significant role in ECDIS functionality?
• Is AIS sufficient on its own for collision avoidance?
• According to IMO standards, what is the status of true motion in ECDIS?
• Is an anchor watch alarm required on an ECDIS?
• Which condition indicates that no Electronic Navigational Chart (ENC) is available?
• What could be a reason for radar inaccuracies when overlayed on ECDIS?
• When an ECDIS is in use, what happens if there is a malfunction of the system?
• When might a navigator choose to use RNC over ENC in ECDIS systems?
• What type of transmission protocol do AIS Class B units utilize?
• Does AIS require all targets to have positional data referenced to the same geodetic datum?
• In which functional panel of the Transas ECDIS do you enter the CPA and TCPA values?
• What is true concerning a synthetic AIS ATON?
• Does the playback function disrupt normal operation of the ECDIS?
• What does the term "clutter" refer to in radar systems?
• In ECDIS terminology, what does the term "SENC" refer to?
• Which of the following is a key benefit of using AIS?
• What is an example of static data transmitted by AIS?
• What criteria are necessary for automatic correlation of ARPA and AIS targets?
• What does the acronym ROT in sensors connected to AIS stand for?
• What is the primary function of an AIS system?
• What does an AIS symbol showing the outline of the ship represent?
• What is the stated accuracy of DGPS?
• What does the "CPA" term refer to in AIS operations?
• Which of the following statements supports the bridge procedures requirement regarding ECDIS?
• What is true concerning a virtual AIS ATON?
• Which of the following is a safety feature of an AIS system?
• Which of the following is an example of dynamic data transmitted by AIS?
• Which statement accurately reflects ECDIS usage concerning alarms during navigation?
• The accuracy of chart data primarily depends on what factors?
• How often is it recommended to check the ECDIS safety parameters and operational settings?
• What factor is important when determining the vessel's safety during navigation using ECDIS?
• According to IMO Performance Standards, can geographical coordinates be read on demand?
• When the radar shows a target that AIS does not list, which of the following may be the cause?
• What are the two options for displaying point objects such as buoys on the ECDIS?
• What is a typical expected AIS range at sea, depending on antenna height?
• What benefit does overlaying a radar picture on an ECDIS display provide?
• What does the solid line on an AIS target symbol indicate?
• Which type of navigation must accompany TX-97 or C-Map charts?
• If a vessel's position is not tracked continuously, what happens?
• Is the ship's name included in AIS position reports?
• What adjustments can be made to a planned route in ECDIS?
• What does the symbol representing a vessel heading indicate on an AIS display?
• What radio frequency band is used for AIS transmissions?
• Which sensor type is pivotal for determining current position on ECDIS?
• What is displayed when monitoring a route in ECDIS?
• What is the geodetic datum used for positions transmitted by AIS?
• What does safety contour refer to in ECDIS settings?
• How are the display settings adjusted for visual clarity in ECDIS?
• What is the main purpose of ECDIS in navigation?
• What is the best practice during route checks in ECDIS?
• According to Collision Regulations, what is required if AIS is fitted?
• According to USCG and SOLAS requirements, what must the ECDIS Presentation Library status be?
• How should the potential shift of floating ATONs be interpreted on ECDIS?
• In what instance does ECDIS record time marks for voyage tracking?
• An AIS symbol when shown in red indicates?
• In the event of an ECDIS failure, what is required of the back-up ECDIS?
• What determines the accuracy of AIS information received?
• According to the IMO, what is a typical range for AIS communications at sea?
• When utilizing the ECDIS for route planning, what is one critical aspect to consider?
• ENCs should refer to which geodetic datum for accurate positioning?
• In ECDIS routing capabilities, what is a waypoint?
• Can an AIS target indicate that it is turning by adding a flag of fixed length to the heading line?
• According to the IMO, what is the purpose of AIS?
• Which of the following statements best describes manual chart correction for ECDIS?
• What does the CFR require regarding AIS data fields?
• Is a synthetic AIS ATON required to have an associated AIS Base Station?
• What does the acronym CCRP stand for in ECDIS terminology?
• How often does a shipboard AIS unit transmit a vessel's voyage-related data?
• How does the ECDIS manage discrepancies in navigational data?
• Loading SENC formatted data into the ECDIS allows for ________ processing times.
• What is the function of RAIM in the context of GPS?
• In what situation is AIS data only as good as the information transmitted?
• What is the primary source for collision avoidance tools alongside ECDIS?
• What is the update rate for static data when the vessel is underway on ECDIS?
• What happens when there is a discrepancy between continuous positioning systems and manual observations in ECDIS?
• Which display mode provides more contrast between safe and unsafe areas when using the night palette?
• What type of vessels are required to carry Class A AIS units?
• What is a common cause for alarm regarding the ship's position in ECDIS?
• Which chart display categories are part of ECDIS?
• Which term describes the area in which special conditions may affect navigational safety?
• What does the playback function primarily disrupt in ECDIS use?
• AIS transmits information over which frequency band?
• Which information can be transmitted from AIS about a vessel’s status?
• To determine the Speed Over Ground (SOG), which two pieces of information are required?
• Which of the following is a designated AIS transmission frequency?
• If an AIS target is indicated to be stationary, what does this mean for the vessel?
• Which file is essential for the ECDIS to function correctly and includes COM Port and sensor selection information?
• What safety value is inputted by the navigator for route checking and monitoring in ECDIS?
• What effect do more AIS Class A units in close proximity to a ship have on the effective range of AIS target detection?
• In what situation will an AIS unit enter "standby" mode?
• What transmission protocol allows up to 450 AIS stations to operate without interference?
• What indication occurs when a route is planned over a ship's safety contour?
• Which statement about route planning in ECDIS is NOT true?
• What happens to alarms and indications if the Presentation Library is outdated?
• Which of the following statements is true regarding shallow and deep contours in ECDIS?
• What feature does ECDIS have when it alerts to an imminent danger?
• AIS relies on which geodetic datum for accurate positional data?
• Who is primarily responsible for setting the safety contour in an ECDIS system?
• What are the main advantages of AIS compared to radar?
• What is the maximum interval for time marks when the ECDIS records a complete track of the entire voyage?
• The ship's draft must be encoded in AIS using which measurement?
• What does a higher DOP value indicate about positional accuracy?
• In relation to chart display, the vertical lines indicate areas of charted data at significantly _________ scale than the main display.
• What is the main function of AIS in maritime operations?
• When the ECDIS operates in RCDS mode, what is required?
• If the chart states that the sounds are from the 1940 to 1969, which surveying method was used?
• What type of alarms are activated when there is a deviation from the planned route in ECDIS?
• What does the acronym PDOP stand for?
• Which mode represents the normal operation of AIS?
• How are AIS targets activated for monitoring?
• When assessing alerts on ECDIS, what approach is suggested?
• What are the types of AIS AtoNs (Aids to Navigation)?
• What feature of the ECDIS assists in determining safe navigation and route monitoring?
• Which statement about AIS is TRUE?
• Which transmission modes do AIS ATONs use?
• Which area boundary can clutter the screen when using the night palette?
• What is the primary purpose of an ECDIS system?
• What type of information can ECDIS provide to navigators?
• What does the past track of the ECDIS provide regarding vessel positioning?
• If the mariner downloads chart data from the NOAA website, which format is it?
• Which chart symbols assist the navigator in assessing the quality of chart and survey data?
• What does the abbreviation HDOP stand for?
• Which method is NOT effective for cross-checking the vessel's position on ECDIS?
• What must a mariner complete for the STCW endorsement of the OICNW to remain valid on vessels equipped with ECDIS?
• Which indication does NOT pertain to ECDIS alarms?
• Which of the following is considered a disadvantage of radar compared to AIS?
• AIS is totally dependent on which system for proper operation?
• Which feature of ECDIS is essential for collision avoidance?
• Which benefit does DGPS provide over standard GPS?
• What activates if a specified cross track limit is violated during route monitoring?
• What occurs when a vessel exceeds the cross track limit of its planned route?
• Which scale should be used by the ECDIS for alarms indicating crossing the ship's safety contour?
• Which of the following is considered by the IMO to be objectives of AIS?
• In S-57 Data Processing Principles, which file represents the Main Chart (Cell) File of the ENC?
• What does the track control of the autopilot manage?
• Which kind of segments should route planning support in ECDIS?
• Which of the following is critical for ensuring safety during navigation using ECDIS?
• What is the file extension of the main chart file?
• Which information is NOT typically displayed by an AIS system?
• Is it possible to display a sea area that does not show the ship while monitoring a route?
• Which of the following is true concerning Class B AIS units?
• What is the effective range resulting from more AIS-equipped vessels?
• What alert does ECDIS provide if the ship will cross the safety contour within a set time?
• Which objects are not included in the base and standard display?
• Prior to executing a planned route in ECDIS, what is necessary to ensure safety?
• What is the impact of the playback function on ECDIS?
• What is the impact of relying heavily on ECDIS as the primary navigation system?
• Which system is generally more accurate, GPS or DGPS?
• What is considered high power for VHF radio transmissions?
• When analyzing the ownship symbol and vectors on an ECDIS screen, how many sensors are providing data at a minimum?
• To ensure data integrity, what is critical for AIS systems?
• How often does a shipboard AIS unit transmit a vessel's dynamic data?
• How often do AIS ATONs broadcast their positional information?
• Which of the following is an example of "user charts" that should be annotated on ECDIS?
• An example of dynamic information transmitted by AIS is?
• Which chart display category is not intended to be used for navigation?
• What indication is given when the cross track limit for deviation from the planned route is exceeded?
• What action is required when displaying a sea area without the ship's position?
• What type of information enhances situational awareness in maritime navigation?
• When navigating on a 1:100,000 chart at the original scale, when zooming into a larger scale, a wreck's location on the chart will ______ in accuracy.
• What are the methods of route planning with ECDIS?
• When making collision avoidance decisions, what is an advantage of radar over AIS?
• Which feature is unique to Class A AIS units compared to Class B units?
• What should be considered when saving routes created with ECDIS?
• How can chart data be determined while using the playback function of ECDIS?
• What is the primary safety feature utilized for generating anti-grounding alarms in ECDIS?
• AIS data is dependent on which of the following?
• Why is proper documentation essential during the use of ECDIS?
• What does AIS stand for?
• What are the primary methods for adjusting a planned route in the Route Planning Mode of ECDIS?
• Does AIS provide accuracy indications for a ship's position?
• What is vital to consider during voyage planning with ECDIS?
• How does ECDIS indicate if there is a loss of input data?
• Can the ECDIS change the recorded information once it has been saved?
• How frequently are voyage-related messages updated in an AIS?
• What should be adjusted automatically for antenna offset?
• What does the term "Information Overscale" refer to in the context of ECDIS?
• The AIS true scale symbol is used on what ranges on radar and which scales with the electronic chart?
• How does AIS enhance safety at sea?
• The safe water as defined by the mariner-inputted safety contour is which color when using the night palette?
• What are the different types of AIS info transmitted by a ship's AIS?
• Which of the following is a benefit of using AIS?
• For how long can the ECDIS preserve the record of the voyage track?
• What feature of ECDIS helps in preventing grounding and collision?
• When must ECDIS provide an alarm?
• What is the function of radar in relation to ECDIS?
• When using TX-97 or C-Map charts with ECDIS, must you use a paper chart for primary navigation?
• Ultimately, voyage plans should be created ___________?
• Comparing the progress of the voyage against the pre-prepared plan is known as...?