INAV QUESTIONS AND ANSWERS
An ECDIS is required to display which information? - Answer -soundings
ECDIS must provide for ____________ motion mode. Other modes are permitted. -
Answer -true
The primary function of the ECDIS is to _______________. - Answer -contribute to
safe navigation
Which of the following is mandatory equipment that must be connected to ECDIS? -
Answer -position navigation sensors (e.g. GPS)
Which data must ECDIS be able to record at one-minute intervals? - Answer -position,
electronic navigational chart source, course made good history
______________ means a facsimile of a paper chart originated by, or distributed on the
authority of, a government-authorized hydrographic office. - Answer -RNC
ECDIS should emphasize the safety contour over other contours on the display. -
Answer -true
Crossing your safety contour will generate a(n) _______________ by the ECDIS. -
Answer -alarm
It should be possible for the mariner to select a safety depth. ECDIS should emphasize
soundings equal to or less than the safety depth regardless of whether or not spot
soundings are selected for display. - Answer -true
ECDIS is required to be connected to all of the following except ________________. -
Answer -RADAR
If the mariner does not specify a safety contour, the default setting is
______________________. - Answer -30m
If the safety contour in use becomes unavailable due to a change in source data, the
safety contour should default to the next deeper contour. - Answer -true
The database resulting from (1) the transformation of the electronic navigational chart
(ENC) by ECDIS for appropriate use, (2) the updates to the ENC by appropriate means,
and (3) the additional data added by the mariner is called the __________________? -
Answer -System Electronic Navigational Chart
The positioning system and the SENC should be on the same geodetic datum. ECDIS
should give an alarm if this is not the case. - Answer -true
, Chart information details to be used in ECDIS should be the latest edition of information
originated by a government-authorized hydrographic office and conform to the
standards of (the)___________________. - Answer -International Hydrographic
Organization
Submarine cables and pipelines are part of the display base. - Answer -false
The performance standards should apply to all ECDIS equipment carried on all ships,
as follows: - Answer -A dedicated stand-alone work station; A multifunction workstation
as part of a integrated navigation system
ECDIS should have at least the same reliability and availability of presentation as the
paper chart published by government authorized hydrographic offices. - Answer -true
In regard to the scale of the display, what are two important indications that an ECDIS
must show? - Answer -Information that is displayed at a larger scale than the ENC;
Ship's own position covered by ENC at larger scale
ECDIS must give an alarm for which of the following cases? - Answer -When the
specified limit for deviation from the planned route is exceeded; If the ship, within a
specified time set by the watch officer, is going to cross a safety contour; If the ship,
within a specified time set by the watch officer, is going to cross the boundary of a
prohibited area
ECDIS should provide an indication if __________________. - Answer -The
information is displayed at a larger scale than that contained in the ENC; Own ships
position is covered by an ENC at a larger scale than that provided by the display
It should be easy to add or remove information from the ECDIS display. It should not be
possible to remove information contained in the _________________. - Answer -base
display
If the electronic chart is part of an ECDIS, it must display the minimum data required by
IMO/IHO, to include all of the following EXCEPT______________________. - Answer -
tidal currents
______________________ is the display mode intended to be used as a minimum
during route planning and route monitoring. - Answer -standard display
Crossing your safety contour will trigger a _________________. - Answer -alarm
Soundings are displayed on an electronic navigation chart (ENC) in
____________________. - Answer -meters
When an ECDIS is switched on following a switch off or power failure, it should return to
the most recent manually selected settings for display - Answer -true
An ECDIS is required to display which information? - Answer -soundings
ECDIS must provide for ____________ motion mode. Other modes are permitted. -
Answer -true
The primary function of the ECDIS is to _______________. - Answer -contribute to
safe navigation
Which of the following is mandatory equipment that must be connected to ECDIS? -
Answer -position navigation sensors (e.g. GPS)
Which data must ECDIS be able to record at one-minute intervals? - Answer -position,
electronic navigational chart source, course made good history
______________ means a facsimile of a paper chart originated by, or distributed on the
authority of, a government-authorized hydrographic office. - Answer -RNC
ECDIS should emphasize the safety contour over other contours on the display. -
Answer -true
Crossing your safety contour will generate a(n) _______________ by the ECDIS. -
Answer -alarm
It should be possible for the mariner to select a safety depth. ECDIS should emphasize
soundings equal to or less than the safety depth regardless of whether or not spot
soundings are selected for display. - Answer -true
ECDIS is required to be connected to all of the following except ________________. -
Answer -RADAR
If the mariner does not specify a safety contour, the default setting is
______________________. - Answer -30m
If the safety contour in use becomes unavailable due to a change in source data, the
safety contour should default to the next deeper contour. - Answer -true
The database resulting from (1) the transformation of the electronic navigational chart
(ENC) by ECDIS for appropriate use, (2) the updates to the ENC by appropriate means,
and (3) the additional data added by the mariner is called the __________________? -
Answer -System Electronic Navigational Chart
The positioning system and the SENC should be on the same geodetic datum. ECDIS
should give an alarm if this is not the case. - Answer -true
, Chart information details to be used in ECDIS should be the latest edition of information
originated by a government-authorized hydrographic office and conform to the
standards of (the)___________________. - Answer -International Hydrographic
Organization
Submarine cables and pipelines are part of the display base. - Answer -false
The performance standards should apply to all ECDIS equipment carried on all ships,
as follows: - Answer -A dedicated stand-alone work station; A multifunction workstation
as part of a integrated navigation system
ECDIS should have at least the same reliability and availability of presentation as the
paper chart published by government authorized hydrographic offices. - Answer -true
In regard to the scale of the display, what are two important indications that an ECDIS
must show? - Answer -Information that is displayed at a larger scale than the ENC;
Ship's own position covered by ENC at larger scale
ECDIS must give an alarm for which of the following cases? - Answer -When the
specified limit for deviation from the planned route is exceeded; If the ship, within a
specified time set by the watch officer, is going to cross a safety contour; If the ship,
within a specified time set by the watch officer, is going to cross the boundary of a
prohibited area
ECDIS should provide an indication if __________________. - Answer -The
information is displayed at a larger scale than that contained in the ENC; Own ships
position is covered by an ENC at a larger scale than that provided by the display
It should be easy to add or remove information from the ECDIS display. It should not be
possible to remove information contained in the _________________. - Answer -base
display
If the electronic chart is part of an ECDIS, it must display the minimum data required by
IMO/IHO, to include all of the following EXCEPT______________________. - Answer -
tidal currents
______________________ is the display mode intended to be used as a minimum
during route planning and route monitoring. - Answer -standard display
Crossing your safety contour will trigger a _________________. - Answer -alarm
Soundings are displayed on an electronic navigation chart (ENC) in
____________________. - Answer -meters
When an ECDIS is switched on following a switch off or power failure, it should return to
the most recent manually selected settings for display - Answer -true
