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ECDIS FINAL FORM EXAM QUESTIONS WITH ANSWERS
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ECDIS FINAL FORM EXAM QUESTIONSWITH ANSWERS
The primary function of ECDIS is ANSWER To contribute to safe navigation.
The ECDIS should be capable of. - ANSWER Displaying all chart information
required for safe and efficient navigation, as created and provided by
government-authorized hydrographic bureaus.
ECDIS should help. - ANSWER: The electronic navigation map can be updated
simply and reliably.
ECDIS should be reduced. - ANSWER The navigational workload versus
utilizing a paper chart. It should allow the mariner to carry out all route
planning, route monitoring, and positioning tasks that are now accomplished on
paper charts in a simple and timely fashion. It should be able to continuously
plot the ship's position.
The ECDIS display can also be used to show ANSWER RADAR, RADAR
tracked target information, AIS, and other relevant data layers to aid in route
monitoring.
ECDIS should provide at least the same dependability and availability of
presentation as paper charts published by government-authorized hydrographic
agencies.
When the necessary chart information is not available in the proper format -
ANSWER Some ECDIS equipment may function in the Raster Chart Display
System (RCDS) mode, as stated in appendix 7. The RCDS mode of operation
should meet performance standards no lower than those outlined in Appendix 7.
The acronym ECDIS stands for ANSWER Electronic, Chart, Display, and
Information System.
Electronic Navigation Chart (ENC) - ANSWER Refers to a database that has
been standardized in terms of content, structure, and format and has been
,released for use with ECDIS by or on behalf of a government, authorized
hydrographic office, or other appropriate government institution, and that meets
IHO requirements.
What does System Electronic Navigational Chart (SENC) mean? - ANSWER A
database in the manufacturer's internal ECDIS format, created via the lossless
transformation of the whole ENC contents and updates.
Standard Display - ANSWER Is the display mode that should be utilized at a
minimum throughout route planning and monitoring.
Display Base means the chart content provided in Appendix 2 that cannot be
deleted from the display. It is not designed to be adequate for safe navigation.
The chart information included in ECDIS should be the most recent edition - as
amended by official updates - produced by or on behalf of a government,
government-authorized hydrographic office, or other appropriate government
institution, and must adhere to IHO standards.
It should be impossible to change the contents of. - ANSWER The ENC or
SENC information converted from the ENC.
Updates should be stored. - Respond separately from the ENC.
ECDIS should be able to accept official changes to the ENC data produced by
IHO standards.
ECDIS should also be able to accept modifications to the ENC - ANSWER
Data entered manually with simple verification methods prior to final data
acceptance. They should be identifiable on the display from ENC information
and its official updates, without affecting display legibility.
,The ECDIS should preserve and display on demand a record of ANSWER
Updates, including the time of application to the SENC. This record should
include updates for each ENC until it is replaced by a newer edition.
ECDIS should allow the mariner to: ANSWER Display updates to check their
contents and ensure that they are incorporated in the SENC.
ECDIS should be able to display all SENC information. - ANSWER An ECDIS
should be able to take and convert an ENC, which is then updated into a SENC.
The ECDIS may also be capable of receiving a SENC resulting from the
conversion of ENC to SENC ashore, in conformity with IHO TR 3.11.
SENC data accessible for presentation during route planning and monitoring
should be split into three categories: ANSWER presentation Base, Standard
Display, and all additional information.
ECDIS should provide - ANSWER The Standard Display at all times with a
single operating action.
When an ECDIS is turned back on after being turned off or experiencing a
power outage, it should return to the most recent manually preset display
settings.
It should be simple to add and remove information from the ECDIS display. -
ANSWER: It should not be possible to remove information from the Display
Base.
, For any geographical position identified by the operator (e.g., by cursor
picking), ANSWER ECDIS should display information about the chart items
associated with that position on demand.
The mariner should be able to select a safety contour from the depth contours
offered by the SENC. ECDIS should prioritize the safety contour over the other
contours on the display, but... (1,2,3) - ANSWER 1.) If the mariner does not
indicate a safety contour, this should be set to 30m. If the mariner's requested
safety contour or the default 30 m contour is not found in the shown SENC, the
safety contour displayed should be the next deeper contour.
2.) If the safety contour in use becomes unavailable due to a change in source
data, the safety contour shall default to the following deeper contour; and
3.) In each of the preceding circumstances, an indication should be given.
The mariner should be able to select a safe depth. - ECDIS should emphasize
soundings equal to or less than the safety depth when spot soundings are
displayed.
ECDIS should indicate the following: - ANSWER 1.) The information is
displayed at a bigger scale than that included in the ENC; or
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