QUESTIONS WITH VERIFIED ANSWERS
PACKAGE
●● Indications
Answer: - Default Safety Contour
- Information Overscale
- Larger scale ENC Available
- No ENC available
- Customized display
- Cross a danger in route monitoring mode
- Route planning across specified area
- Route planning across safety contour
- System test failure
- Different reference system
●● What are required sensors of ECDIS?
Answer: - Heading
- Speed
- Position
,●● Radar is required to be connected to ECDIS?
Answer: Radar is not required
●● What are the methods of loading chart data?
Answer: - Automatically
- Manually from the present route
- Manually from the total portfolio
- Manually displayed by the cursor position
●● If the ECDIS is using raster charts, which mode is it in?
Answer: RCDS
●● Who is responsible for setting the safety contour in the ECDIS?
Answer: Watch Officer
●● Which safety parameter is used for generating anti-grounding
alarms?
Answer: Safety Contour
●● The ECDIS can emphasize soundings equal to or less than the
___________ when every spot soundings are selected for display.
Answer: Safety Depth
,●● Do the shallow and deep contours generate anti-grounding alarms?
Answer: No, there are no alarms/indications associated with the shallow
and deep contours. The shallow and deep contours are only for
information and enhance the chart display.
●● ECDIS is comprised of?
Answer: Hardware, Software, and Data
●● What are the chart display categories?
Answer: Base, Standard, and All
●● Is true motion optional, or required?
Answer: Per IMO standards, true motion is required.
●● The ownship is displayed as a ______ on the SENC.
Answer: The own ship is displayed as either a symbol or true scale by
ECDIS.
●● The radar image and the position for the position sensor should be
adjusted automatically for antenna offset from which of the following?
Answer: Conning Position (CCRP)
, ●● Which of the following would not be an effective way to cross-check
the accuracy of the vessel's position on ECDIS?
Answer: Switching the ECDIS into DR mode.
●● The abbreviation HDOP stands for?
Answer: Horizontal Dilution of Precision
●● What is the diagnostic function of the GPS receiver that tests the
accuracy of the GPS signal?
Answer: RAIM
●● Is GPS or DGPS more accurate?
Answer: DGPS
●● The abbreviation PDOP stands for?
Answer: Position Dilution of Precision
●● The higher the DOP value, the ______ accurate the position.
Answer: Less
●● The accuracy of chart data is dependent on?
Answer: The Accuracy of survey and all hydrographic data, Shifting of
Buoys, and Coverage and completeness of chart data.