Is the following statement True or False? Compilation scale is the scale of the paper chart from which the vector chart was made:
Your answer is correct:
True.
2
Is the following statement True or False? Traditional buoy symbols on an ENC vector chart look similar to symbols seen on a paper chart:
Your answer is correct:
True.
3
Select the correct meaning of the abbreviation ZOC in relation to ECDIS:
Your answer is correct:
Zone of Confidence.
4
Select the option best describes the meaning of a magenta coloured “i” in a box seen on a charted sea area in relation to ECDIS:
Your answer is correct:
There is some information appertaining to the sea area.
5
Select the option that best describes a cautionary area on the ECDIS:
Your answer is correct:
Orange cross hatching on the chart display.
6
Select the option that best describes how ECDIS informs the operator of an approaching chart at different scale to the one being used:
Your answer is correct:
There will be a thick continuous black line visible.
7
Select the option that best describes how Temporary and Preliminary notices are shown on the vector chart in relation to ECDIS:
Your answer is correct:
The ECDIS may not display them – a navigator’s note could be set up to show them.
8
Select the option that best describes the meaning of a magnet a coloured “i” in a box with a line to an object in relation to ECDIS:
Your answer is correct:
There is more information available on the object than is shown on the display.
9
Select the option that best describes the meaning of the text “bn 10” on an ECDIS display:
Your answer is correct:
Navigation beacon number 10.
10
Select the option that best describes the meaning of the text “bn 12” on an ECDIS display:
Your answer is correct:
Navigation beacon number 12.
11
Select the option that best describes why vertical grey lines can sometimes be seen all over the ECDIS display:
Your answer is correct:
ECDIS is set at the wrong scale for the vector chart loaded.
12
Select the option that correctly completes the following statement in relation to ECDIS: “A ZOC A1 indicates the depth accuracy on the vector chart to be…”
Your answer is correct:
0,5 m + 1 % of depth value.
13
Select the option that correctly completes the following statement in relation to ECDIS: “A navigation buoy cancelled with a chart update will…”
Your answer is correct:
Have an orange diagonal line through the symbol.
14
Select the option that correctly completes the following statement in relation to ECDIS: “An isolated danger buoy is represented on an ENC chart with…”
Your answer is correct:
Two red spheres slightly inclined.
15
Select the option that correctly completes the following statement in relation to ECDIS: “Isolated danger symbols are not seen on a vector chart when they should be because…”
Your answer is correct:
The safety depth contour is set with too small a value.
16
Select the option that correctly completes the following statement in relation to ECDIS: “Updates to official ENCs cover…”
Your answer is correct:
All relevant chart corrections.
17
Select the option that correctly completes the following statement in relation to ECDIS: “A grey question mark alongside an object indicates that…”
Your answer is correct:
The position of the object is doubtful.
18
Select the option that correctly completes the following statement in relation to ECDIS: “A precautionary area is shown on the ENC as…”
Your answer is correct:
A magenta coloured “i” in a box inside a diagonal hatched area.
19
Select the option that correctly completes the following statement in relation to ECDIS: “An isolated danger beacon is represented on an ENC chart with…”
Your answer is correct:
Two upright red spheres.
20
Select the option that correctly completes the following statement in relation to ECDIS: “ECDIS alarms…”
Your answer is correct:
Should never be ignored and must be investigated.
21
Select the statement that best answer this question: Do some ECDIS devices show tidal stream values as an information overlay?
Your answer is correct:
Yes – if they have dedicated software loaded on the ECDIS computer.
22
Select the statement that best answer this question: Do ECDIS depth soundings show height of tide on them?
Your answer is correct:
Most do not, but in the future most will.
23
Select the statement that best describes a buoy symbol that is NOT properly defined in the ENC data set:
Your answer is correct:
A spherical buoy grey in colour.
24
Select the statement that best describes how an operator establishes the nature of an isolated danger on an ENC:
Your answer is correct:
Interrogate it and ask for a pick report.
25
Select the statement that best describes the anomalies that are sometimes seen on ECDIS:
Your answer is correct:
They are features of the ECDIS that sometimes seem illogical.
26
Select the statement that best describes the use of docking mode on ECDIS:
Your answer is correct:
ECDIS used with the vessel close to berths.
27
Select the statement that best describes the use of the text “bn” on an ENC display:
Your answer is correct:
Stops confusing beacon numbers and depth sounding figures.
28
Select the statement that best describes why a Port State Control Officer is interested in ECDIS when they undertake vessel inspections:
Your answer is correct:
Because ECDIS has to comply with IMO requirements.
29
Select the statement that best describes why a button on ECDIS shows with a red highlight:
Your answer is correct:
The ECDIS is in an alarm state.
30
What happens on the ECDIS display when the selected safety contour value does NOT exist in the chart data set?
Your answer is correct:
The next highest value will be shown highlighted as a bold line.
31
Which answer BEST describes how dredged areas are highlighted on the ENC chart display?
Your answer is correct:
Dredged areas are highlighted with a grey dotted fill in the dredge area.
32
Which answer correctly completes the following statement: The safety depth contour value is calculated by adding…
Your answer is correct:
The draught of the vessel plus a safe under keel clearance.
33
Which answer describes how the safety depth contour is seen on ECDIS?
Your answer is correct:
As a solid line with the contour highlighted in bold.
34
Which answer describes the minimum amount of information shown on an ENC vector chart?
Your answer is correct:
The “Base” layer.
35
Which answer describes the two types of buoy symbols found on an ENC vector chart?
Your answer is correct:
Simplified and traditional.
36
Which of the following BEST describes why a button on the ECDIS shows with a yellow highlight?
Your answer is correct:
It is an indication to inform the operator of something.
37
Which of the following statements is the most accurate in relation to the safety depth contour setting on an ECDIS?
Your answer is correct:
The safety depth contour is best set at a value to reflect the vessel’s draught.
38
Which of the given features is indicated by a grey vertical rectangle on an ENC in relation to ECDIS?
Your answer is correct:
An undefined beacon.
39
Which of the given options best describes an ECDIS being in “browse” mode?
Your answer is correct:
A mode allowing the operator to look ahead on the chart.
40
Which of the options correctly completes the following statement? ECDIS display various colours and shades on vector chart depth areas, because:
Your answer is correct:
They are easily seen by the operator.
41
Which of the statements best describes how the raster chart gives advice on data quality in relation to ECDIS?
Your answer is correct:
There are notes on the chart that can be read.
42
Which of the statements best describes what happens to the sounding figures on the display when the safety depth figure is set on an ECDIS?
Your answer is correct:
Depth values below the depth are highlighted in bold.
43
Which option best describes the reason behind this statement? There should be regular ECDIS monitor colour tests:
Your answer is correct:
To ensure the monitor shows correct colours.
44
Which option best describes what lies below an isolated danger symbol on an ENC?
Your answer is correct:
There could be any seafloor obstruction.
45
Which statement BEST describes how ECDIS sees land coded in the vector chart as a point source?
Your answer is correct:
The land will not be recognised as an obstacle to the ECDIS.
46
Which statement best describes how the vector chart gives advice on data quality in relation to ECDIS?
Your answer is correct:
The chart has a ZOC function.
47
Which statement best describes orange cross hatching as might be seen on an ECDIS sea area?
Your answer is correct:
Orange cross hatching is an indication of a Cautionary area.
48
Which statement best describes the action needed if ECDIS cannot automatically display Temporary and Preliminary notices?
Your answer is correct:
Annotate the ECDIS using the notes function.
49
Which statement best describes the meaning of the Paris Memorandum?
Your answer is correct:
An understanding for Port State Control Officers in Europe.
50
Which statement best describes what happens to land in North up relative motion mode on ECDIS?
Your answer is correct:
Land on screen moves relative to the ship symbol.
51
Which statement best describes what happens to the land in North up true motion mode on ECDIS?
Your answer is correct:
Land on the screen does not move until it resets.
52
Which statement best describes what happens to the ship symbol in North up relative motion mode on ECDIS?
Your answer is correct:
Vessel symbol is stopped on the screen.
53
Which statement best describes what happens to the ship symbol in North up true motion mode on ECDIS?
Your answer is correct:
Vessel symbol moves across the screen.
54
Which statement best describes why it is important to remove cancelled chart cells from the ECDIS?
Your answer is correct:
To stop them being loaded onto the ECDIS display.
55
Which statement best describes why the ECDIS has settings for ambient light conditions?
Your answer is correct:
Observation of the screen is necessary under all light conditions at sea.