As approved ECDIS has to be tested for functionality against a standard:
Ваша відповідь правильна:
Correct – for use on a vessel under SOLAS chart requirements.
2
Approximately how many countries are producing electronic charts?
Ваша відповідь правильна:
Between 40 and 50.
3
Can an ECS chart plotter be approved as an ECDIS?
Правильну відповідь:
No, as it has unofficial charts on it.
Ваша відповідь:
Yes, an ECS is always approved as an ECDIS.
4
ECDIS is an acronym for:
Ваша відповідь правильна:
Electronic chart displays and information system.
5
Explain the statement which best describes an ECDIS when compared to a chart plotter:
Ваша відповідь правильна:
ECDIS devices are manufactured according to the ECDIS standard.
6
Geodesy is best described as:
Ваша відповідь правильна:
The science that describes the shape of the earth.
7
How can a quick check on the quality of the navigation signal to ECDIS be obtained?
Ваша відповідь правильна:
By viewing the radar overlay.
8
How many files of chart information does a raster chart have?
Ваша відповідь правильна:
One.
9
IMO made an important decision for the production of electronic charts. Which of the given options best describes their decision?
Ваша відповідь правильна:
They asked countries to produce their own charts for their territorial waters.
10
If the ECDIS shows the vessel overshooting turns indicate the probable cause:
Ваша відповідь правильна:
The time filters on the GPS and ECDIS are set high.
11
If the radar overlay appears skewed on the ECDIS indicate the possible problem:
Ваша відповідь правильна:
The radar heading marker could be misaligned.
12
Indicate the main advantage to the Mariner of a raster chart:
Ваша відповідь правильна:
They can be used when there is no vector ENC available.
13
Indicate the main disadvantages to the Mariner of a vector chart:
Ваша відповідь правильна:
The electronic display can make the Mariner over reliant.
14
Indicate the primary use of ECDIS on board the vessel:
Ваша відповідь правильна:
To store and display electronic charts.
15
Official electronic charts have various names. Select the correct list from the options given:
Ваша відповідь правильна:
Vector, S57, official ENC.
16
Official vector charts are made by projecting which spheroid?
Ваша відповідь правильна:
WGS 84.
17
Select the option which correctly completes the following statement: “An ECDIS compliant electronic chart is best described as…”
Ваша відповідь правильна:
One constructed under the S52 standard.
18
Select the option which correctly completes the following statement: “An ECDIS position filter protects the ECDIS from…”
Ваша відповідь правильна:
Showing a fluctuating position of the vessel.
19
Select the option which correctly completes the following statement: “An ECDIS will alarm if…”
Ваша відповідь правильна:
The chart datum and navigation signal datum mismatch.
20
Select the option which correctly completes the following statement: “Digitally produced charts are suited to computer use because…”
Ваша відповідь правильна:
They are produced as a series of files that give flexibility.
21
Select the option which correctly completes the following statement: “The SCAMIN attribute will influence the chart display, because…”
Ваша відповідь правильна:
Objects will be removed as the operator zooms.
22
Select the option which correctly completes the following statement: “The presentation library on the ECDIS is important, because…”
Ваша відповідь правильна:
If it is not the latest version the ECDIS will not show all detail.
23
Select the option which correctly completes the following statement: “When loading updates on the ECDIS it is important to delete old files, because…”
Ваша відповідь правильна:
The ECDIS may display old versions not the update one.
24
Select the option which correctly completes the following statement: “When using ECDIS, out of position navigation buoys will be noticed, because…”
Ваша відповідь правильна:
The radar return and buoy symbol do not coincide.
25
Select the option which correctly completes the following statement: “When the ECDIS is in DR mode…”
Ваша відповідь правильна:
The course and speed through the water are used for navigation.
26
Select the option which describes the correct scale to view chart detail on a vector chart:
Ваша відповідь правильна:
At the same scale as the compilation scale.
27
Select the option which is normally one of the main feeds into the ECDIS system:
Ваша відповідь правильна:
The navigation signal.
28
Select the option which most accurately describes the following statement: “When raster charts are made, new data is always used to make them”.
Ваша відповідь правильна:
The statement is totally incorrect.
29
Under the ISM Code what are ECDIS Operators required to have?
Ваша відповідь правильна:
Proper equipment and generic training for ECDIS.
30
What could a large magenta question mark on the ECDIS display could indicate?
Ваша відповідь правильна:
The presentation library is out of date.
31
What does the acronym HDOP stand for?
Ваша відповідь правильна:
Horizontal dilution of precision.
32
What does the acronym RNC stand for in relation to ECDIS?
Ваша відповідь правильна:
Raster Navigational Chart.
33
What does the acronym SENC stand for in relation to ECDIS?
Ваша відповідь правильна:
System Electronic Navigational Chart.
34
What is WEND in relation to electronic navigation?
Ваша відповідь правильна:
A world system of supply and updating of charts.
35
What is the height datum for water depth on an ENC chart usually taken as?
Ваша відповідь правильна:
Lowest astronomical tide.
36
What is the main advantage to the Mariner of a vector chart?
Ваша відповідь правильна:
The stored data base has intelligence.
37
What is the main disadvantage to the Mariner of a raster chart?
Ваша відповідь правильна:
They have little flexibility in their use.
38
What should a chart, with usage code 1, be used for?
Ваша відповідь правильна:
Over viewing an ocean when planning.
39
What should a chart, with usage code 6, be used for?
Правильну відповідь:
Berthing and un-berthing.
Ваша відповідь:
Crossing an ocean.
40
What would a large magneta question mark on the ECDIS display indicate?
Ваша відповідь правильна:
That the presentation library is out of date.
41
What would a small magneta question mark on the ECDIS display indicate?
Ваша відповідь правильна:
That the ECDIS is uncertain as to some object’s attribute.
42
What would be contained in the “Exchange set” of files in relation to ECDIS?
Ваша відповідь правильна:
The vector chart file and other information files.
43
When can a raster chart be used on the ECDIS display?
Ваша відповідь правильна:
When there is no vector chart available.
44
When does the ENC data set become an SENC?
Ваша відповідь правильна:
When the ECDIS converts it.
45
When sailing with ECDIS, what behaviour must the bridge team show?
Ваша відповідь правильна:
A duty of care to navigate the vessel safely by all means.
46
When the primary position sensor to the ECDIS fails which of the following is likely to occur?
Ваша відповідь правильна:
The ECDIS attempts to position with the secondary system.
47
Which answer BEST completes the following statement: “A vessel is fitted with a LAN…”
Ваша відповідь правильна:
To connect up the devices in a communications loop.
48
Which of the given options best describes a data set in relation to ECDIS and electronic charts?
Ваша відповідь правильна:
It is the compiled information making up the electronic chart.
49
Which of the given options best describes how ECDIS fits in with the chart carriage requirements as identified in SOLAS?
Ваша відповідь правильна:
An approved ECDIS is acceptable under the chart carriage requirements.
50
Which of the given options best describes the effects on an ECDIS if the navigation signal has errors on it?
Ваша відповідь правильна:
The indicated position will be wrong.
51
Which of the given options best describes the function of RENC?
Ваша відповідь правильна:
A centre for collating and distributing charts.
52
Which of the given options best describes the function of data protection on the chart?
Ваша відповідь правильна:
Anti-piracy and controls authenticity.
53
Which of the given options best describes the validity of the following statement: “The official vector chart is always more accurate than the paper chart”.
Ваша відповідь правильна:
It is not correct.
54
Which of the given options best describes the validity of the following statement: “After the first of July 2012, new passenger ships will have to be fitted with ECDIS”.
Ваша відповідь правильна:
Correct, but only if they are above 500 GRT.
55
Which of the given options best describes the validity of the following statement: “An approved ECDIS can replace paper charts on a vessel”.
Ваша відповідь правильна:
Only with approval from the flag state.
56
Which of the given options best describes the validity of the following statement: “In the future existing ships will have to be fitted with ECDIS”.
Ваша відповідь правильна:
Correct, in accordance with a rolling time program depending on ship type.
57
Which of the given options best describes the validity of the following statement: “Ships approved for ECDIS are robust enough to sail the world with one system”.
Ваша відповідь правильна:
Incorrect, there should be a backup system fitted.
58
Which of the given options best describes the validity of the following statement: “The 1996 amendment to the ECDIS standards allowed the use of raster charts on an ECDIS”.
Ваша відповідь правильна:
Correct, but only when an official chart is not available.
59
Which of the given options describes the normal types of input to an ECDIS?
Ваша відповідь правильна:
Any useful input from bridge and engine room equipment.
60
Which of the given options is correct in relation to the following statement: “When using ECDIS, a general chart, with usage code 2, can be zoomed in on for harbour viewing”.
Ваша відповідь правильна:
Correct, it can be but should not be.
61
Which of the given options is the meaning of the letters GB and the number 5 in the chart cell identifier GB50344?
Ваша відповідь правильна:
A chart made by the UKHO for harbour usage.
62
Which of the given options is the most accurate in relation to the following statement: “Vector charts are no more accurate than paper charts”.
Ваша відповідь правильна:
True since vector charts are usually digitised versions of the paper chart.
63
Which of the given options is the typical scale of a harbour chart?
Ваша відповідь правильна:
1:4 000.
64
Which of the given options would be the most appropriate action to take if the datum of the raster chart is not WGS84 and GPS is being used?
Ваша відповідь правильна:
Apply the stated offsets on the chart.
65
Which of the options is an important task given for RENCs?
Ваша відповідь правильна:
They are responsible for ensuring the chart data is protected.
66
Which of the requirements given in the options is necessary when loading charts on a vessel’s ECDIS?
Ваша відповідь правильна:
A license or permit to allow the charts to install.
67
Which of the standards given in the options must a vector chart be manufactured under in order for it to be considered an official ENC?
Ваша відповідь правильна:
S57.
68
Which one of the authorities, given in the options, sets the hydrographic standards for electronic charts?
Ваша відповідь правильна:
IHO.
69
Which one of the authorities, given in the options, sets the hydrographic standards for ECDIS?
Правильну відповідь:
IMO.
Ваша відповідь:
IHO.
70
Which one of the given options can be considered as summarising the disadvantages of an ECDIS to a navigator?
Ваша відповідь правильна:
The navigator can be misled by the computer display believing it to be correct.
71
Which one of the given options can be considered as the main advantage to the bridge team of having an ECDIS?
Ваша відповідь правильна:
Various types of information can be displayed to the bridge team.
72
Which one of the options is considered as the main disadvantage to the Mariner of a vector chart?
Ваша відповідь правильна:
The electronic display can make the Mariner over reliant.
73
Which statement best describes an attribute of a chart object?
Ваша відповідь правильна:
A set of instructions to the ECDIS to control objects.
74
Which type of electronic chart is considered to have intelligence when used on ECDIS?
Ваша відповідь правильна:
A digital vector chart.
75
Why is it important that an approved method is used for the conversion of ENC to SENC?
Ваша відповідь правильна:
Because the conversion process allows the chart electronic files to be converted properly.
76
Why is it important to have the same datum for chart and navigation signal when using ECDIS?
Ваша відповідь правильна:
Because navigation positions can be plotted directly on the chart.
77
Why is it that some ECDIS devices show symbols that look different for the same object?
Ваша відповідь правильна:
The ECDIS manufacturer interpreted the S57 standard differently.
78
Why will a VAR sometimes convert an ENC file to a SENC file?